TY  - JOUR
AU  - Laketić, Slađana
AU  - Rakin, Marko
AU  - Momčilović, Miloš
AU  - Ciganović, Jovan
AU  - Veljović, Đorđe N.
AU  - Cvijović-Alagić, Ivana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9735
AB  - The effects of picosecond Nd:YAG laser irradiation on chemical and morphological surface characteristics of the commercially pure titanium and Ti-13Nb-13Zr alloy in air and argon atmospheres were studied under different laser output energy values. During the interaction of laser irradiation with the investigated materials, a part of the energy was absorbed on the target surface, influencing surface modifications. Laser beam interaction with the target surface resulted in various morphological alterations, resulting in crater formation and the presence of microcracks and hydrodynamic structures. Moreover, different chemical changes were induced on the target materials' surfaces, resulting in the titanium oxide formation in the irradiation-affected area and consequently increasing the irradiation energy absorption. Given the high energy absorption at the site of interaction, the dimensions of the surface damaged area increased. Consequently, surface roughness increased. The appearance of surface oxides also led to the increased material hardness in the surface-modified area. Observed chemical and morphological changes were pronounced after laser irradiation of the Ti-13Nb-13Zr alloy surface.
PB  - Springer, New York
T2  - International Journal of Minerals Metallurgy and Materials
T1  - Surface modifications of biometallic commercially pure Ti and Ti-13Nb-13Zr alloy by picosecond Nd:YAG laser
DO  - 10.1007/s12613-020-2061-9
ER  - 

@article{
author = "Laketić, Slađana and Rakin, Marko and Momčilović, Miloš and Ciganović, Jovan and Veljović, Đorđe N. and Cvijović-Alagić, Ivana",
year = "2021",
abstract = "The effects of picosecond Nd:YAG laser irradiation on chemical and morphological surface characteristics of the commercially pure titanium and Ti-13Nb-13Zr alloy in air and argon atmospheres were studied under different laser output energy values. During the interaction of laser irradiation with the investigated materials, a part of the energy was absorbed on the target surface, influencing surface modifications. Laser beam interaction with the target surface resulted in various morphological alterations, resulting in crater formation and the presence of microcracks and hydrodynamic structures. Moreover, different chemical changes were induced on the target materials' surfaces, resulting in the titanium oxide formation in the irradiation-affected area and consequently increasing the irradiation energy absorption. Given the high energy absorption at the site of interaction, the dimensions of the surface damaged area increased. Consequently, surface roughness increased. The appearance of surface oxides also led to the increased material hardness in the surface-modified area. Observed chemical and morphological changes were pronounced after laser irradiation of the Ti-13Nb-13Zr alloy surface.",
publisher = "Springer, New York",
journal = "International Journal of Minerals Metallurgy and Materials",
title = "Surface modifications of biometallic commercially pure Ti and Ti-13Nb-13Zr alloy by picosecond Nd:YAG laser",
doi = "10.1007/s12613-020-2061-9"
}

Laketić, S., Rakin, M., Momčilović, M., Ciganović, J., Veljović, Đ. N.,& Cvijović-Alagić, I.. (2021). Surface modifications of biometallic commercially pure Ti and Ti-13Nb-13Zr alloy by picosecond Nd:YAG laser. in International Journal of Minerals Metallurgy and Materials
Springer, New York..
https://doi.org/10.1007/s12613-020-2061-9

Laketić S, Rakin M, Momčilović M, Ciganović J, Veljović ĐN, Cvijović-Alagić I. Surface modifications of biometallic commercially pure Ti and Ti-13Nb-13Zr alloy by picosecond Nd:YAG laser. in International Journal of Minerals Metallurgy and Materials. 2021;.
doi:10.1007/s12613-020-2061-9 .

Laketić, Slađana, Rakin, Marko, Momčilović, Miloš, Ciganović, Jovan, Veljović, Đorđe N., Cvijović-Alagić, Ivana, "Surface modifications of biometallic commercially pure Ti and Ti-13Nb-13Zr alloy by picosecond Nd:YAG laser" in International Journal of Minerals Metallurgy and Materials (2021),
https://doi.org/10.1007/s12613-020-2061-9 . .

TY  - CONF
AU  - Kastratović, Gordana M.
AU  - Vidanović, Nenad D.
AU  - Grbović, Aleksandar M.
AU  - Mirkov, Nikola S.
AU  - Rašuo, Boško P.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8525
AB  - This paper discusses certain aspects of numerical simulation of crack propagation in wire ropes subjected to axial loading, with the aim to explore and to demonstrate the capacity, performances and difficulties of crack propagation modeling by usage of numerical computational methods in such complex structures. For this purpose, the finite element method (FEM) was used, and 3D numerical analyses were performed in Ansys Workbench software. In order to validate and verify performed numerical modeling, crack growth rate based on calculated stress intensity factors (SIFs) along the crack fronts was obtained for the model for which experimental results could be found in the available literature. Finally, using the advanced modeling techniques, the parametric 3D model of seven-wire strand was analyzed. Conducted analysis showed that FEM could be a powerful tool for fatigue life predictions in order to reduce the need for experiments, which are still the only successful method for fatigue life estimation of wire ropes. © Springer Nature Switzerland AG 2020.
C3  - Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019
T1  - Numerical Simulation of Crack Propagation in Seven-Wire Strand
VL  - 90
SP  - 76
EP  - 91
DO  - 10.1007/978-3-030-30853-7_5
ER  - 

@conference{
author = "Kastratović, Gordana M. and Vidanović, Nenad D. and Grbović, Aleksandar M. and Mirkov, Nikola S. and Rašuo, Boško P.",
year = "2020",
abstract = "This paper discusses certain aspects of numerical simulation of crack propagation in wire ropes subjected to axial loading, with the aim to explore and to demonstrate the capacity, performances and difficulties of crack propagation modeling by usage of numerical computational methods in such complex structures. For this purpose, the finite element method (FEM) was used, and 3D numerical analyses were performed in Ansys Workbench software. In order to validate and verify performed numerical modeling, crack growth rate based on calculated stress intensity factors (SIFs) along the crack fronts was obtained for the model for which experimental results could be found in the available literature. Finally, using the advanced modeling techniques, the parametric 3D model of seven-wire strand was analyzed. Conducted analysis showed that FEM could be a powerful tool for fatigue life predictions in order to reduce the need for experiments, which are still the only successful method for fatigue life estimation of wire ropes. © Springer Nature Switzerland AG 2020.",
journal = "Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019",
title = "Numerical Simulation of Crack Propagation in Seven-Wire Strand",
volume = "90",
pages = "76-91",
doi = "10.1007/978-3-030-30853-7_5"
}

Kastratović, G. M., Vidanović, N. D., Grbović, A. M., Mirkov, N. S.,& Rašuo, B. P.. (2020). Numerical Simulation of Crack Propagation in Seven-Wire Strand. in Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019, 90, 76-91.
https://doi.org/10.1007/978-3-030-30853-7_5

Kastratović GM, Vidanović ND, Grbović AM, Mirkov NS, Rašuo BP. Numerical Simulation of Crack Propagation in Seven-Wire Strand. in Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019. 2020;90:76-91.
doi:10.1007/978-3-030-30853-7_5 .

Kastratović, Gordana M., Vidanović, Nenad D., Grbović, Aleksandar M., Mirkov, Nikola S., Rašuo, Boško P., "Numerical Simulation of Crack Propagation in Seven-Wire Strand" in Computational and Experimental Approaches in Materials Science and Engineering, CNNTech 2019, 90 (2020):76-91,
https://doi.org/10.1007/978-3-030-30853-7_5 . .

TY  - JOUR
AU  - Momčilović, Miloš
AU  - Petrović, Jelena
AU  - Ciganović, Jovan
AU  - Cvijović-Alagić, Ivana
AU  - Koldžić, Filip
AU  - Živković, Sanja
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8570
AB  - The application of an alternative laser-induced breakdown spectroscopy (LIBS) method based on transversely excited atmospheric (TEA) CO2 laser was investigated for the first time for estimating the hardness of metallic materials. The human eye-safe (TEA) CO2 laser, operating at 10.6 µm, was used for plasma generation. The LIBS spectra were recorded by employing a cost-effective CCD camera for the time-integrated and spatial resolved measurements. The cast iron and aluminum alloys samples with different hardness have been tested. The ratio between the magnesium ionic and neutral lines in LIBS spectra was applied for estimating the material hardness. In addition, the hardness of all samples included in this study was determined using the conventional method for material hardness determination, i.e. Vickers hardness test. The linear dependence of magnesium lines intensity ratio on the sample’s hardness was obtained for both kinds of materials. Profilometric measurements were used to verify that the newly-introduced method is almost nondestructive for the investigated metals. The results obtained in the present work confirmed the potential of using this original LIBS system not only for the fast elemental analysis but also for the direct estimation of the hardness of metals and alloys. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Plasma Chemistry and Plasma Processing
T1  - Laser-Induced Plasma as a Method for the Metallic Materials Hardness Estimation: An Alternative Approach
VL  - 40
IS  - 2
SP  - 499
EP  - 510
DO  - 10.1007/s11090-020-10063-5
ER  - 

@article{
author = "Momčilović, Miloš and Petrović, Jelena and Ciganović, Jovan and Cvijović-Alagić, Ivana and Koldžić, Filip and Živković, Sanja",
year = "2020",
abstract = "The application of an alternative laser-induced breakdown spectroscopy (LIBS) method based on transversely excited atmospheric (TEA) CO2 laser was investigated for the first time for estimating the hardness of metallic materials. The human eye-safe (TEA) CO2 laser, operating at 10.6 µm, was used for plasma generation. The LIBS spectra were recorded by employing a cost-effective CCD camera for the time-integrated and spatial resolved measurements. The cast iron and aluminum alloys samples with different hardness have been tested. The ratio between the magnesium ionic and neutral lines in LIBS spectra was applied for estimating the material hardness. In addition, the hardness of all samples included in this study was determined using the conventional method for material hardness determination, i.e. Vickers hardness test. The linear dependence of magnesium lines intensity ratio on the sample’s hardness was obtained for both kinds of materials. Profilometric measurements were used to verify that the newly-introduced method is almost nondestructive for the investigated metals. The results obtained in the present work confirmed the potential of using this original LIBS system not only for the fast elemental analysis but also for the direct estimation of the hardness of metals and alloys. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Plasma Chemistry and Plasma Processing",
title = "Laser-Induced Plasma as a Method for the Metallic Materials Hardness Estimation: An Alternative Approach",
volume = "40",
number = "2",
pages = "499-510",
doi = "10.1007/s11090-020-10063-5"
}

Momčilović, M., Petrović, J., Ciganović, J., Cvijović-Alagić, I., Koldžić, F.,& Živković, S.. (2020). Laser-Induced Plasma as a Method for the Metallic Materials Hardness Estimation: An Alternative Approach. in Plasma Chemistry and Plasma Processing, 40(2), 499-510.
https://doi.org/10.1007/s11090-020-10063-5

Momčilović M, Petrović J, Ciganović J, Cvijović-Alagić I, Koldžić F, Živković S. Laser-Induced Plasma as a Method for the Metallic Materials Hardness Estimation: An Alternative Approach. in Plasma Chemistry and Plasma Processing. 2020;40(2):499-510.
doi:10.1007/s11090-020-10063-5 .

Momčilović, Miloš, Petrović, Jelena, Ciganović, Jovan, Cvijović-Alagić, Ivana, Koldžić, Filip, Živković, Sanja, "Laser-Induced Plasma as a Method for the Metallic Materials Hardness Estimation: An Alternative Approach" in Plasma Chemistry and Plasma Processing, 40, no. 2 (2020):499-510,
https://doi.org/10.1007/s11090-020-10063-5 . .

TY  - JOUR
AU  - Laketić, Slađana
AU  - Rakin, Marko
AU  - Čairović, Aleksandra
AU  - Maksimović, Vesna
AU  - Cvijović-Alagić, Ivana
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11337
AB  - Metallic biomaterials are most commonly used as hard-tissue replacements because of their favorable mechanical features and excellent biocompatibility. The objective of this paper is to present an overview of diverse surface modification techniques, with a special emphasis on the laser surface modification method, as well as diverse characterization techniques used for investigating the impact of the surface modification process on metallic implant materials' properties. Moreover, the effect of laser radiation on the surface its and mechanical characteristics, as well as on the structure of metallic bioimplants, is presented. The study of influence of high-intensity laser radiation on metallic materials' surface includes primarily investigations of the surface morphology modifications and specific surface structure formation since their presence enables enhanced osseointegration.
AB  - Metalni biomaterijali se najčešće koriste za izradu implantanata čvrstih strukturnih delova ljudskog tela zbog svojih dobrih mehaničkih karakteristika i odlične biokompatibilnosti. Cilj rada je da se pregledno predstave različite tehnike površinske modifikacije implantantnih materijala sa posebnim osvrtom na metodu laserske modifikacije površine, kao i mnogobrojne karakterizacione metode za ispitivanje uticaja procesa površinske modifikacije na svojstva metalnih implantantnih materijala. Osim toga, predstavljen je i razmatran uticaj laserskog zračenja na površinske i mehaničke karakteristike, kao i na strukturu metalnih bioimplantanata. Ispitivanje uticaja laserskog zračenja visokog intenziteta na površinu metalnih materijala prvenstveno obuhvata ispitivanje morfoloških površinskih promena i formiranja specifičnih površinskih struktura, koje doprinose poboljšanju oseointegracije metalnih implantanata.
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Laser surface modification of metallic implant materials
T1  - Laserska površinska modifikacija metalnih implantantnih materijala
VL  - 147
IS  - 7-8
SP  - 497
EP  - 501
DO  - 10.2298/SARH181126054L
ER  - 

@article{
author = "Laketić, Slađana and Rakin, Marko and Čairović, Aleksandra and Maksimović, Vesna and Cvijović-Alagić, Ivana",
year = "2019",
abstract = "Metallic biomaterials are most commonly used as hard-tissue replacements because of their favorable mechanical features and excellent biocompatibility. The objective of this paper is to present an overview of diverse surface modification techniques, with a special emphasis on the laser surface modification method, as well as diverse characterization techniques used for investigating the impact of the surface modification process on metallic implant materials' properties. Moreover, the effect of laser radiation on the surface its and mechanical characteristics, as well as on the structure of metallic bioimplants, is presented. The study of influence of high-intensity laser radiation on metallic materials' surface includes primarily investigations of the surface morphology modifications and specific surface structure formation since their presence enables enhanced osseointegration., Metalni biomaterijali se najčešće koriste za izradu implantanata čvrstih strukturnih delova ljudskog tela zbog svojih dobrih mehaničkih karakteristika i odlične biokompatibilnosti. Cilj rada je da se pregledno predstave različite tehnike površinske modifikacije implantantnih materijala sa posebnim osvrtom na metodu laserske modifikacije površine, kao i mnogobrojne karakterizacione metode za ispitivanje uticaja procesa površinske modifikacije na svojstva metalnih implantantnih materijala. Osim toga, predstavljen je i razmatran uticaj laserskog zračenja na površinske i mehaničke karakteristike, kao i na strukturu metalnih bioimplantanata. Ispitivanje uticaja laserskog zračenja visokog intenziteta na površinu metalnih materijala prvenstveno obuhvata ispitivanje morfoloških površinskih promena i formiranja specifičnih površinskih struktura, koje doprinose poboljšanju oseointegracije metalnih implantanata.",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Laser surface modification of metallic implant materials, Laserska površinska modifikacija metalnih implantantnih materijala",
volume = "147",
number = "7-8",
pages = "497-501",
doi = "10.2298/SARH181126054L"
}

Laketić, S., Rakin, M., Čairović, A., Maksimović, V.,& Cvijović-Alagić, I.. (2019). Laser surface modification of metallic implant materials. in Srpski arhiv za celokupno lekarstvo, 147(7-8), 497-501.
https://doi.org/10.2298/SARH181126054L

Laketić S, Rakin M, Čairović A, Maksimović V, Cvijović-Alagić I. Laser surface modification of metallic implant materials. in Srpski arhiv za celokupno lekarstvo. 2019;147(7-8):497-501.
doi:10.2298/SARH181126054L .

Laketić, Slađana, Rakin, Marko, Čairović, Aleksandra, Maksimović, Vesna, Cvijović-Alagić, Ivana, "Laser surface modification of metallic implant materials" in Srpski arhiv za celokupno lekarstvo, 147, no. 7-8 (2019):497-501,
https://doi.org/10.2298/SARH181126054L . .

TY  - JOUR
AU  - Momčilović, Miloš
AU  - Živković, Sanja
AU  - Petrović, Jelena
AU  - Cvijović-Alagić, Ivana
AU  - Ciganović, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8620
AB  - This study was carried out to examine the applicability of original laser-induced breakdown spectroscopy (LIBS) setup for determination of the surface hardness of lead glass as a function of its chemical composition. For this purpose, a set of five lead glass samples with different amount of ZrO2 was prepared. The LIBS measurements were carried out using TEA CO2 laser in the air at atmospheric pressure and without sample preparation. A ratio of the intensity between the Zr(II) 355.66 nm and Zr(I) 360.12 nm emission lines has been used to examine the hardness of the material. In addition, the surface hardness of glass samples was determined by Vickers’s indentation tests. Obtained results indicate a linear relationship of the measurements of hardness in glass samples between the LIBS and Vickers method. To show that LIBS based on TEA CO2 laser is an almost nondestructive technique, profilometric surface analysis was used. The proposed LIBS system is suitable not only for a spectrochemical analysis but also as an easy to use and cost-effective way to measure the surface hardness for all types and shapes of glass samples which are in some cases difficult to examine by standard Vicker’s method. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Applied Physics. B: Lasers and Optics
T1  - An original LIBS system based on TEA CO2 laser as a tool for determination of glass surface hardness
VL  - 125
IS  - 11
SP  - 222
DO  - 10.1007/s00340-019-7329-2
ER  - 

@article{
author = "Momčilović, Miloš and Živković, Sanja and Petrović, Jelena and Cvijović-Alagić, Ivana and Ciganović, Jovan",
year = "2019",
abstract = "This study was carried out to examine the applicability of original laser-induced breakdown spectroscopy (LIBS) setup for determination of the surface hardness of lead glass as a function of its chemical composition. For this purpose, a set of five lead glass samples with different amount of ZrO2 was prepared. The LIBS measurements were carried out using TEA CO2 laser in the air at atmospheric pressure and without sample preparation. A ratio of the intensity between the Zr(II) 355.66 nm and Zr(I) 360.12 nm emission lines has been used to examine the hardness of the material. In addition, the surface hardness of glass samples was determined by Vickers’s indentation tests. Obtained results indicate a linear relationship of the measurements of hardness in glass samples between the LIBS and Vickers method. To show that LIBS based on TEA CO2 laser is an almost nondestructive technique, profilometric surface analysis was used. The proposed LIBS system is suitable not only for a spectrochemical analysis but also as an easy to use and cost-effective way to measure the surface hardness for all types and shapes of glass samples which are in some cases difficult to examine by standard Vicker’s method. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Applied Physics. B: Lasers and Optics",
title = "An original LIBS system based on TEA CO2 laser as a tool for determination of glass surface hardness",
volume = "125",
number = "11",
pages = "222",
doi = "10.1007/s00340-019-7329-2"
}

Momčilović, M., Živković, S., Petrović, J., Cvijović-Alagić, I.,& Ciganović, J.. (2019). An original LIBS system based on TEA CO2 laser as a tool for determination of glass surface hardness. in Applied Physics. B: Lasers and Optics, 125(11), 222.
https://doi.org/10.1007/s00340-019-7329-2

Momčilović M, Živković S, Petrović J, Cvijović-Alagić I, Ciganović J. An original LIBS system based on TEA CO2 laser as a tool for determination of glass surface hardness. in Applied Physics. B: Lasers and Optics. 2019;125(11):222.
doi:10.1007/s00340-019-7329-2 .

Momčilović, Miloš, Živković, Sanja, Petrović, Jelena, Cvijović-Alagić, Ivana, Ciganović, Jovan, "An original LIBS system based on TEA CO2 laser as a tool for determination of glass surface hardness" in Applied Physics. B: Lasers and Optics, 125, no. 11 (2019):222,
https://doi.org/10.1007/s00340-019-7329-2 . .

TY  - JOUR
AU  - Jovanović, Milan T.
AU  - Mišković, Zoran L.
AU  - Maksimović, Vesna
AU  - Cvijović-Alagić, Ivana
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8814
AB  - A severely damaged low carbon steel boiler tube was the object of this investigation. Detailed microstructural characterization was performed by optical microscopy, whereas scanning electron microscopy (SEM) was applied only in a few cases. Results show that a variety of microstructures was formed in the material of the damaged boiler tube during its exploitation. The failure of the tube is the result of very inhomogeneous overheating. The side of the boiler tube toward fire (F) was exposed to high overheating temperature, which in some locations was well above the A3 transformation temperature. The side toward boiler (BL) was subjected to lower temperatures, i.e. in the region mostly between A1 and A3 temperatures. Variations in temperatures and cooling rates, which resulted in microstructural inhomogeneity, are the main cause for the formation and multiplication of stresses leading to the rupture of the tube. © 2019, Association of Metallurgical Engineers of Serbia. All rights reserved.
T2  - Metallurgical and Materials Engineering
T1  - Optical microscopy as a simple method for analysis of boiler tube failure
VL  - 25
IS  - 4
SP  - 301
EP  - 313
DO  - 10.30544/461
ER  - 

@article{
author = "Jovanović, Milan T. and Mišković, Zoran L. and Maksimović, Vesna and Cvijović-Alagić, Ivana",
year = "2019",
abstract = "A severely damaged low carbon steel boiler tube was the object of this investigation. Detailed microstructural characterization was performed by optical microscopy, whereas scanning electron microscopy (SEM) was applied only in a few cases. Results show that a variety of microstructures was formed in the material of the damaged boiler tube during its exploitation. The failure of the tube is the result of very inhomogeneous overheating. The side of the boiler tube toward fire (F) was exposed to high overheating temperature, which in some locations was well above the A3 transformation temperature. The side toward boiler (BL) was subjected to lower temperatures, i.e. in the region mostly between A1 and A3 temperatures. Variations in temperatures and cooling rates, which resulted in microstructural inhomogeneity, are the main cause for the formation and multiplication of stresses leading to the rupture of the tube. © 2019, Association of Metallurgical Engineers of Serbia. All rights reserved.",
journal = "Metallurgical and Materials Engineering",
title = "Optical microscopy as a simple method for analysis of boiler tube failure",
volume = "25",
number = "4",
pages = "301-313",
doi = "10.30544/461"
}

Jovanović, M. T., Mišković, Z. L., Maksimović, V.,& Cvijović-Alagić, I.. (2019). Optical microscopy as a simple method for analysis of boiler tube failure. in Metallurgical and Materials Engineering, 25(4), 301-313.
https://doi.org/10.30544/461

Jovanović MT, Mišković ZL, Maksimović V, Cvijović-Alagić I. Optical microscopy as a simple method for analysis of boiler tube failure. in Metallurgical and Materials Engineering. 2019;25(4):301-313.
doi:10.30544/461 .

Jovanović, Milan T., Mišković, Zoran L., Maksimović, Vesna, Cvijović-Alagić, Ivana, "Optical microscopy as a simple method for analysis of boiler tube failure" in Metallurgical and Materials Engineering, 25, no. 4 (2019):301-313,
https://doi.org/10.30544/461 . .

TY  - JOUR
AU  - Cvijović-Alagić, Ivana
AU  - Cvijović, Zorica M.
AU  - Zagorac, Dejan
AU  - Jovanović, Milan T.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8398
AB  - The microstructure variation and oxidation behavior of a hot-rolled and quenched Ti-24Al-11Nb (at%) intermetallic alloy with and without protective Ni-20Cr (at%) coating were studied in the air at a cyclic annealing temperature of 600 °C and 900 °C. The phase transformations monitored up to 120 h of alloy oxidation and oxidation products were examined using different experimental techniques. The oxidation kinetics was determined by recording the mass gain vs. time data and oxidation activation energy was evaluated. It was found that the annealing temperature and deposited coating significantly affect the scale formation and growth. The alloy showed better oxidation resistance at 600 °C, irrespective of the protective coating application. The higher temperature promoted the formation of thicker and multi-layered scale predominantly composed of Nb-doped TiO2 and Al2O3 oxides, which cracked and spalled causing oxidation rate for an order of magnitude higher than that at 600 °C. The presence of AlN decelerated the oxide scale growth, which obeyed a parabolic rate law. It was also noted that a two-phase α2+β microstructure changed to a greater extent. With increasing temperature, the α2→β phase transformation occurred more intensive and new α2′′ and O-Ti2AlNb phase appeared. The Ni-20Cr coating reduced the oxidation rate at both temperatures and improved the scale-spallation resistance. The compact Cr2O3 layer formed on the coated alloy led to the preferential Al2O3 formation, increasing its amount in mixture with Nb-enriched TiO2 oxide. Thin TiN layer detected beneath the oxide scale also supported the formation of slow-growing Al2O3, leading to a decrease in the oxidation rate. The external scale suppression contributed to the greater diffusion zone enrichment, resulting in the faster O-Ti2AlNb formation. The experimentally observed O-Ti2AlNb formation was confirmed by ab initio modeling. Furthermore, additional structures were predicted and studied using first-principles calculations in the O-Ti2AlNb compound. © 2018
T2  - Ceramics International
T1  - Cyclic oxidation of Ti3Al-based materials
VL  - 45
IS  - 7
SP  - 9423
EP  - 9438
DO  - 10.1016/j.ceramint.2018.08.287
ER  - 

@article{
author = "Cvijović-Alagić, Ivana and Cvijović, Zorica M. and Zagorac, Dejan and Jovanović, Milan T.",
year = "2019",
abstract = "The microstructure variation and oxidation behavior of a hot-rolled and quenched Ti-24Al-11Nb (at%) intermetallic alloy with and without protective Ni-20Cr (at%) coating were studied in the air at a cyclic annealing temperature of 600 °C and 900 °C. The phase transformations monitored up to 120 h of alloy oxidation and oxidation products were examined using different experimental techniques. The oxidation kinetics was determined by recording the mass gain vs. time data and oxidation activation energy was evaluated. It was found that the annealing temperature and deposited coating significantly affect the scale formation and growth. The alloy showed better oxidation resistance at 600 °C, irrespective of the protective coating application. The higher temperature promoted the formation of thicker and multi-layered scale predominantly composed of Nb-doped TiO2 and Al2O3 oxides, which cracked and spalled causing oxidation rate for an order of magnitude higher than that at 600 °C. The presence of AlN decelerated the oxide scale growth, which obeyed a parabolic rate law. It was also noted that a two-phase α2+β microstructure changed to a greater extent. With increasing temperature, the α2→β phase transformation occurred more intensive and new α2′′ and O-Ti2AlNb phase appeared. The Ni-20Cr coating reduced the oxidation rate at both temperatures and improved the scale-spallation resistance. The compact Cr2O3 layer formed on the coated alloy led to the preferential Al2O3 formation, increasing its amount in mixture with Nb-enriched TiO2 oxide. Thin TiN layer detected beneath the oxide scale also supported the formation of slow-growing Al2O3, leading to a decrease in the oxidation rate. The external scale suppression contributed to the greater diffusion zone enrichment, resulting in the faster O-Ti2AlNb formation. The experimentally observed O-Ti2AlNb formation was confirmed by ab initio modeling. Furthermore, additional structures were predicted and studied using first-principles calculations in the O-Ti2AlNb compound. © 2018",
journal = "Ceramics International",
title = "Cyclic oxidation of Ti3Al-based materials",
volume = "45",
number = "7",
pages = "9423-9438",
doi = "10.1016/j.ceramint.2018.08.287"
}

Cvijović-Alagić, I., Cvijović, Z. M., Zagorac, D.,& Jovanović, M. T.. (2019). Cyclic oxidation of Ti3Al-based materials. in Ceramics International, 45(7), 9423-9438.
https://doi.org/10.1016/j.ceramint.2018.08.287

Cvijović-Alagić I, Cvijović ZM, Zagorac D, Jovanović MT. Cyclic oxidation of Ti3Al-based materials. in Ceramics International. 2019;45(7):9423-9438.
doi:10.1016/j.ceramint.2018.08.287 .

Cvijović-Alagić, Ivana, Cvijović, Zorica M., Zagorac, Dejan, Jovanović, Milan T., "Cyclic oxidation of Ti3Al-based materials" in Ceramics International, 45, no. 7 (2019):9423-9438,
https://doi.org/10.1016/j.ceramint.2018.08.287 . .

TY  - JOUR
AU  - Barjaktarević, Dragana R.
AU  - Đokić, Veljko R.
AU  - Bajat, Jelena B.
AU  - Dimić, Ivana D.
AU  - Cvijović-Alagić, Ivana
AU  - Rakin, Marko P.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8411
AB  - On the surface of the ultrafine-grained Ti–13Nb–13Zr alloy and the coarse-grained Ti–13Nb–13Zr alloy nanotubular oxide layers were formed by electrochemical anodization in the 1 M H3PO4 + NaF electrolyte in order to evaluate the electrochemical behaviour in the artificial saliva. SEM images showed that homogeneous nanotubular oxide layers could be formed by anodic oxidation of titanium alloys in an electrolyte with fluoride ions. These two titanium alloys, like other materials developed to replace the bone tissue in the human body, have to be highly corrosion resistant, which is one of the most common requirement in terms of the biocompatibility, damage and fracture prevention. The alloys were analysed by means of the electrochemical impedance spectroscopy and potentiodynamic polarization. The analyzed alloys had good corrosion stability, while nanotubular oxide layer improved their corrosion resistance. © 2019 Elsevier Ltd
T2  - Theoretical and Applied Fracture Mechanics
T1  - The influence of the surface nanostructured modification on the corrosion resistance of the ultrafine-grained Ti–13Nb–13Zr alloy in artificial saliva
VL  - 103
SP  - 102307
DO  - 10.1016/j.tafmec.2019.102307
ER  - 

@article{
author = "Barjaktarević, Dragana R. and Đokić, Veljko R. and Bajat, Jelena B. and Dimić, Ivana D. and Cvijović-Alagić, Ivana and Rakin, Marko P.",
year = "2019",
abstract = "On the surface of the ultrafine-grained Ti–13Nb–13Zr alloy and the coarse-grained Ti–13Nb–13Zr alloy nanotubular oxide layers were formed by electrochemical anodization in the 1 M H3PO4 + NaF electrolyte in order to evaluate the electrochemical behaviour in the artificial saliva. SEM images showed that homogeneous nanotubular oxide layers could be formed by anodic oxidation of titanium alloys in an electrolyte with fluoride ions. These two titanium alloys, like other materials developed to replace the bone tissue in the human body, have to be highly corrosion resistant, which is one of the most common requirement in terms of the biocompatibility, damage and fracture prevention. The alloys were analysed by means of the electrochemical impedance spectroscopy and potentiodynamic polarization. The analyzed alloys had good corrosion stability, while nanotubular oxide layer improved their corrosion resistance. © 2019 Elsevier Ltd",
journal = "Theoretical and Applied Fracture Mechanics",
title = "The influence of the surface nanostructured modification on the corrosion resistance of the ultrafine-grained Ti–13Nb–13Zr alloy in artificial saliva",
volume = "103",
pages = "102307",
doi = "10.1016/j.tafmec.2019.102307"
}

Barjaktarević, D. R., Đokić, V. R., Bajat, J. B., Dimić, I. D., Cvijović-Alagić, I.,& Rakin, M. P.. (2019). The influence of the surface nanostructured modification on the corrosion resistance of the ultrafine-grained Ti–13Nb–13Zr alloy in artificial saliva. in Theoretical and Applied Fracture Mechanics, 103, 102307.
https://doi.org/10.1016/j.tafmec.2019.102307

Barjaktarević DR, Đokić VR, Bajat JB, Dimić ID, Cvijović-Alagić I, Rakin MP. The influence of the surface nanostructured modification on the corrosion resistance of the ultrafine-grained Ti–13Nb–13Zr alloy in artificial saliva. in Theoretical and Applied Fracture Mechanics. 2019;103:102307.
doi:10.1016/j.tafmec.2019.102307 .

Barjaktarević, Dragana R., Đokić, Veljko R., Bajat, Jelena B., Dimić, Ivana D., Cvijović-Alagić, Ivana, Rakin, Marko P., "The influence of the surface nanostructured modification on the corrosion resistance of the ultrafine-grained Ti–13Nb–13Zr alloy in artificial saliva" in Theoretical and Applied Fracture Mechanics, 103 (2019):102307,
https://doi.org/10.1016/j.tafmec.2019.102307 . .

TY  - JOUR
AU  - Cvijović-Alagić, Ivana
AU  - Cvijović, Zorica M.
AU  - Rakin, Marko P.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8468
AB  - Wear damage behavior of new orthopedic Ti-13Nb-13Zr (mass %) alloy with martensitic microstructures developed by different thermo-mechanical treatments were examined during sliding in simulated physiological solution. The results obtained for this alloy processed by cold and hot rolling were compared with that of the standard Ti-6Al-4 V (mass %) alloy heat-treated to produce martensitic microstructure. The block-on-disk sliding friction and wear tests were conducted in Ringer’s solution. The friction coefficient, wear rate, and wear damage mechanisms were determined over a range of normal loads (20–60 N) and linear sliding speeds (0.26–1.0 m/s). The surface damage morphology revealed the presence of corrosive, abrasive, and adhesive wear in all investigated materials. The friction and wear properties were found to be dependent on the predominant wear damage mechanism and applied load/sliding speed combination. In the case of a Ti-13Nb-13Zr alloy, the adhesive wear contributes to the higher wear rate and better friction behavior. This cold-rolled alloy, having a martensitic microstructure with the lowest hardness, shows the lowest friction coefficient values due to high material transfer from the alloy surface. The lowest friction resistance is observed for the Ti-6Al-4 V alloy with the highest hardness since the dominant wear damage mechanism is abrasion resulting in the low wear rate and material transfer.
T2  - International Journal of Damage Mechanics
T1  - Damage behavior of orthopedic titanium alloys with martensitic microstructure during sliding wear in physiological solution
VL  - 28
IS  - 8
SP  - 1228
EP  - 1247
DO  - 10.1177/1056789518823049
ER  - 

@article{
author = "Cvijović-Alagić, Ivana and Cvijović, Zorica M. and Rakin, Marko P.",
year = "2019",
abstract = "Wear damage behavior of new orthopedic Ti-13Nb-13Zr (mass %) alloy with martensitic microstructures developed by different thermo-mechanical treatments were examined during sliding in simulated physiological solution. The results obtained for this alloy processed by cold and hot rolling were compared with that of the standard Ti-6Al-4 V (mass %) alloy heat-treated to produce martensitic microstructure. The block-on-disk sliding friction and wear tests were conducted in Ringer’s solution. The friction coefficient, wear rate, and wear damage mechanisms were determined over a range of normal loads (20–60 N) and linear sliding speeds (0.26–1.0 m/s). The surface damage morphology revealed the presence of corrosive, abrasive, and adhesive wear in all investigated materials. The friction and wear properties were found to be dependent on the predominant wear damage mechanism and applied load/sliding speed combination. In the case of a Ti-13Nb-13Zr alloy, the adhesive wear contributes to the higher wear rate and better friction behavior. This cold-rolled alloy, having a martensitic microstructure with the lowest hardness, shows the lowest friction coefficient values due to high material transfer from the alloy surface. The lowest friction resistance is observed for the Ti-6Al-4 V alloy with the highest hardness since the dominant wear damage mechanism is abrasion resulting in the low wear rate and material transfer.",
journal = "International Journal of Damage Mechanics",
title = "Damage behavior of orthopedic titanium alloys with martensitic microstructure during sliding wear in physiological solution",
volume = "28",
number = "8",
pages = "1228-1247",
doi = "10.1177/1056789518823049"
}

Cvijović-Alagić, I., Cvijović, Z. M.,& Rakin, M. P.. (2019). Damage behavior of orthopedic titanium alloys with martensitic microstructure during sliding wear in physiological solution. in International Journal of Damage Mechanics, 28(8), 1228-1247.
https://doi.org/10.1177/1056789518823049

Cvijović-Alagić I, Cvijović ZM, Rakin MP. Damage behavior of orthopedic titanium alloys with martensitic microstructure during sliding wear in physiological solution. in International Journal of Damage Mechanics. 2019;28(8):1228-1247.
doi:10.1177/1056789518823049 .

Cvijović-Alagić, Ivana, Cvijović, Zorica M., Rakin, Marko P., "Damage behavior of orthopedic titanium alloys with martensitic microstructure during sliding wear in physiological solution" in International Journal of Damage Mechanics, 28, no. 8 (2019):1228-1247,
https://doi.org/10.1177/1056789518823049 . .

TY  - JOUR
AU  - Cvijović-Alagić, Ivana
AU  - Cvijović, Zorica M.
AU  - Maletaškić, Jelena
AU  - Rakin, Marko P.
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0921509318311717
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7859
AB  - effect of initial microstructure on the mechanical properties and fracture mode of the Ti-6Al-4V ELI alloy subjected to the high-pressure torsion (HPT) processing at room temperature and 500 °C was investigated. In this purpose, the four different microstructures (fully lamellar, martensitic, equiaxed and globular microstructures) were developed by the proper heat treatments. The results showed that the application of the HPT processing provided substantial microstructural refinement, independent on the alloy initial microstructure. As a consequence, the alloy hardness, tensile strength and ductility significantly increased. At the same time, the elastic modulus of the HPT-processed alloy is almost 2 times lower as compared to that of the alloy in the initial heat treated state. The obtained improvements strongly depend on the alloy initial microstructure and HPT processing temperature. It was found that the initial martensitic microstructure is beneficial to improve the hardness, tensile and fracture properties. The HPT processing at 500 °C enhanced them more effectively. After the warm HPT processing, alloy with the initial martensitic microstructure exhibited exceptional hardness (455 MPa), high ultimate tensile strength (1546 MPa), high elongation to failure (18.8%) and low elastic modulus (78.6 GPa). Although the alloy with initial fully lamellar microstructure displayed the lowest elastic modulus (68 GPa), the ultrafine and homogeneous (α + β) two-phase microstructure produced by the HPT processing of the alloy with initial martensitic microstructure offered the best combination of the strength-ductility balance and strength-to-elastic modulus ratio (19.8 × 10−3). The complex fracture process, involving transgranular quasi-cleavage and ductile dimple fracture mode, corresponded to the changes in ductility.
T2  - Materials Science and Engineering: A
T1  - Initial microstructure effect on the mechanical properties of Ti-6Al-4V ELI alloy processed by high-pressure torsion
VL  - 736
SP  - 175
EP  - 192
DO  - 10.1016/j.msea.2018.08.094
ER  - 

@article{
author = "Cvijović-Alagić, Ivana and Cvijović, Zorica M. and Maletaškić, Jelena and Rakin, Marko P.",
year = "2018",
abstract = "effect of initial microstructure on the mechanical properties and fracture mode of the Ti-6Al-4V ELI alloy subjected to the high-pressure torsion (HPT) processing at room temperature and 500 °C was investigated. In this purpose, the four different microstructures (fully lamellar, martensitic, equiaxed and globular microstructures) were developed by the proper heat treatments. The results showed that the application of the HPT processing provided substantial microstructural refinement, independent on the alloy initial microstructure. As a consequence, the alloy hardness, tensile strength and ductility significantly increased. At the same time, the elastic modulus of the HPT-processed alloy is almost 2 times lower as compared to that of the alloy in the initial heat treated state. The obtained improvements strongly depend on the alloy initial microstructure and HPT processing temperature. It was found that the initial martensitic microstructure is beneficial to improve the hardness, tensile and fracture properties. The HPT processing at 500 °C enhanced them more effectively. After the warm HPT processing, alloy with the initial martensitic microstructure exhibited exceptional hardness (455 MPa), high ultimate tensile strength (1546 MPa), high elongation to failure (18.8%) and low elastic modulus (78.6 GPa). Although the alloy with initial fully lamellar microstructure displayed the lowest elastic modulus (68 GPa), the ultrafine and homogeneous (α + β) two-phase microstructure produced by the HPT processing of the alloy with initial martensitic microstructure offered the best combination of the strength-ductility balance and strength-to-elastic modulus ratio (19.8 × 10−3). The complex fracture process, involving transgranular quasi-cleavage and ductile dimple fracture mode, corresponded to the changes in ductility.",
journal = "Materials Science and Engineering: A",
title = "Initial microstructure effect on the mechanical properties of Ti-6Al-4V ELI alloy processed by high-pressure torsion",
volume = "736",
pages = "175-192",
doi = "10.1016/j.msea.2018.08.094"
}

Cvijović-Alagić, I., Cvijović, Z. M., Maletaškić, J.,& Rakin, M. P.. (2018). Initial microstructure effect on the mechanical properties of Ti-6Al-4V ELI alloy processed by high-pressure torsion. in Materials Science and Engineering: A, 736, 175-192.
https://doi.org/10.1016/j.msea.2018.08.094

Cvijović-Alagić I, Cvijović ZM, Maletaškić J, Rakin MP. Initial microstructure effect on the mechanical properties of Ti-6Al-4V ELI alloy processed by high-pressure torsion. in Materials Science and Engineering: A. 2018;736:175-192.
doi:10.1016/j.msea.2018.08.094 .

Cvijović-Alagić, Ivana, Cvijović, Zorica M., Maletaškić, Jelena, Rakin, Marko P., "Initial microstructure effect on the mechanical properties of Ti-6Al-4V ELI alloy processed by high-pressure torsion" in Materials Science and Engineering: A, 736 (2018):175-192,
https://doi.org/10.1016/j.msea.2018.08.094 . .

TY  - JOUR
AU  - Barjaktarević, Dragana
AU  - Bajat, Jelena
AU  - Cvijović-Alagić, Ivana
AU  - Dimić, Ivana
AU  - Hohenwarter, Anton
AU  - Đokić, Veljko
AU  - Rakin, Marko
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11334
AB  - In order to optimize and enhance the implant material properties, metallic materials may be modified by severe plastic deformation (SPD) procedures. One of the most attracting SPD methods is high-pressure torsion (HPT), which is method where deformation is obtained mainly by simple shear. In the present study ultrafine-grained titanium (UFG cpTi) and ultrafine-grained Ti-13Nb-13Zr (UFG TNZ) alloy were obtained by high pressure torsion (HPT) under a pressure of 4.1 GPa with a rotational speed of 0.2 rpm up to 5 rotations at room temperature. In order to analyse microstructure of materials before and after HPT process, scanning electron microscope (SEM) was used. The aim of this study was to determine the corrosion resistance of titanium and its alloy after HPT process. Electrochemical measurements were performed in artificial saliva with a pH value of 5.5 at 37 degrees C, in order to simulate the oral environment. The materials were analysed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. All examined materials showed good corrosion resistance, but results indicate that HPT process can improves corrosion resistance.
T2  - Procedia Structural Integrity
T1  - The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion
VL  - 13
SP  - 1834
EP  - 1839
DO  - 10.1016/j.prostr.2018.12.332
ER  - 

@article{
author = "Barjaktarević, Dragana and Bajat, Jelena and Cvijović-Alagić, Ivana and Dimić, Ivana and Hohenwarter, Anton and Đokić, Veljko and Rakin, Marko",
year = "2018",
abstract = "In order to optimize and enhance the implant material properties, metallic materials may be modified by severe plastic deformation (SPD) procedures. One of the most attracting SPD methods is high-pressure torsion (HPT), which is method where deformation is obtained mainly by simple shear. In the present study ultrafine-grained titanium (UFG cpTi) and ultrafine-grained Ti-13Nb-13Zr (UFG TNZ) alloy were obtained by high pressure torsion (HPT) under a pressure of 4.1 GPa with a rotational speed of 0.2 rpm up to 5 rotations at room temperature. In order to analyse microstructure of materials before and after HPT process, scanning electron microscope (SEM) was used. The aim of this study was to determine the corrosion resistance of titanium and its alloy after HPT process. Electrochemical measurements were performed in artificial saliva with a pH value of 5.5 at 37 degrees C, in order to simulate the oral environment. The materials were analysed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. All examined materials showed good corrosion resistance, but results indicate that HPT process can improves corrosion resistance.",
journal = "Procedia Structural Integrity",
title = "The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion",
volume = "13",
pages = "1834-1839",
doi = "10.1016/j.prostr.2018.12.332"
}

Barjaktarević, D., Bajat, J., Cvijović-Alagić, I., Dimić, I., Hohenwarter, A., Đokić, V.,& Rakin, M.. (2018). The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion. in Procedia Structural Integrity, 13, 1834-1839.
https://doi.org/10.1016/j.prostr.2018.12.332

Barjaktarević D, Bajat J, Cvijović-Alagić I, Dimić I, Hohenwarter A, Đokić V, Rakin M. The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion. in Procedia Structural Integrity. 2018;13:1834-1839.
doi:10.1016/j.prostr.2018.12.332 .

Barjaktarević, Dragana, Bajat, Jelena, Cvijović-Alagić, Ivana, Dimić, Ivana, Hohenwarter, Anton, Đokić, Veljko, Rakin, Marko, "The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion" in Procedia Structural Integrity, 13 (2018):1834-1839,
https://doi.org/10.1016/j.prostr.2018.12.332 . .

TY  - CONF
AU  - Pavkov, Vladimir
AU  - Stoiljković, Milovan
AU  - Maksimović, Vesna
AU  - Cvijović-Alagić, Ivana
AU  - Ciganović, Jovan
AU  - Vranješ, Mila
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8739
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
T1  - TiO2 Nanoparticle Deposition on Solid CP-Ti Substrate through Spraying Water Colloid in the Arc Plasma
SP  - 222
EP  - 224
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8739
ER  - 

@conference{
author = "Pavkov, Vladimir and Stoiljković, Milovan and Maksimović, Vesna and Cvijović-Alagić, Ivana and Ciganović, Jovan and Vranješ, Mila",
year = "2018",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia",
title = "TiO2 Nanoparticle Deposition on Solid CP-Ti Substrate through Spraying Water Colloid in the Arc Plasma",
pages = "222-224",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8739"
}

Pavkov, V., Stoiljković, M., Maksimović, V., Cvijović-Alagić, I., Ciganović, J.,& Vranješ, M.. (2018). TiO2 Nanoparticle Deposition on Solid CP-Ti Substrate through Spraying Water Colloid in the Arc Plasma. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
Belgrade : Serbian Academy of Sciences and Arts., 222-224.
https://hdl.handle.net/21.15107/rcub_vinar_8739

Pavkov V, Stoiljković M, Maksimović V, Cvijović-Alagić I, Ciganović J, Vranješ M. TiO2 Nanoparticle Deposition on Solid CP-Ti Substrate through Spraying Water Colloid in the Arc Plasma. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia. 2018;:222-224.
https://hdl.handle.net/21.15107/rcub_vinar_8739 .

Pavkov, Vladimir, Stoiljković, Milovan, Maksimović, Vesna, Cvijović-Alagić, Ivana, Ciganović, Jovan, Vranješ, Mila, "TiO2 Nanoparticle Deposition on Solid CP-Ti Substrate through Spraying Water Colloid in the Arc Plasma" in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia (2018):222-224,
https://hdl.handle.net/21.15107/rcub_vinar_8739 .

TY  - CONF
AU  - Barjaktarević, Dragana R.
AU  - Bajat, Jelena B.
AU  - Cvijović-Alagić, Ivana
AU  - Dimić, Ivana
AU  - Hohenwarter, Anton
AU  - Đokić, Veljko R.
AU  - Rakin, Marko P.
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S2452321618305730
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8164
AB  - In order to optimize and enhance the implant material properties, metallic materials may be modified by severe plastic deformation (SPD) procedures. One of the most attracting SPD methods is high-pressure torsion (HPT), which is method where deformation is obtained mainly by simple shear. In the present study ultrafine-grained titanium (UFG cpTi) and ultrafine-grained Ti-13Nb-13Zr (UFG TNZ) alloy were obtained by high pressure torsion (HPT) under a pressure of 4.1 GPa with a rotational speed of 0.2 rpm up to 5 rotations at room temperature. In order to analyse microstructure of materials before and after HPT process, scanning electron microscope (SEM) was used. The aim of this study was to determine the corrosion resistance of titanium and its alloy after HPT process. Electrochemical measurements were performed in artificial saliva with a pH value of 5.5 at 37°C, in order to simulate the oral environment. The materials were analysed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. All examined materials showed good corrosion resistance, but results indicate that HPT process can improves corrosion resistance. © 2018 The Authors.
C3  - Procedia Structural Integrity
T1  - The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion
VL  - 13
SP  - 1834
EP  - 1839
DO  - 10.1016/j.prostr.2018.12.332
ER  - 

@conference{
author = "Barjaktarević, Dragana R. and Bajat, Jelena B. and Cvijović-Alagić, Ivana and Dimić, Ivana and Hohenwarter, Anton and Đokić, Veljko R. and Rakin, Marko P.",
year = "2018",
abstract = "In order to optimize and enhance the implant material properties, metallic materials may be modified by severe plastic deformation (SPD) procedures. One of the most attracting SPD methods is high-pressure torsion (HPT), which is method where deformation is obtained mainly by simple shear. In the present study ultrafine-grained titanium (UFG cpTi) and ultrafine-grained Ti-13Nb-13Zr (UFG TNZ) alloy were obtained by high pressure torsion (HPT) under a pressure of 4.1 GPa with a rotational speed of 0.2 rpm up to 5 rotations at room temperature. In order to analyse microstructure of materials before and after HPT process, scanning electron microscope (SEM) was used. The aim of this study was to determine the corrosion resistance of titanium and its alloy after HPT process. Electrochemical measurements were performed in artificial saliva with a pH value of 5.5 at 37°C, in order to simulate the oral environment. The materials were analysed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. All examined materials showed good corrosion resistance, but results indicate that HPT process can improves corrosion resistance. © 2018 The Authors.",
journal = "Procedia Structural Integrity",
title = "The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion",
volume = "13",
pages = "1834-1839",
doi = "10.1016/j.prostr.2018.12.332"
}

Barjaktarević, D. R., Bajat, J. B., Cvijović-Alagić, I., Dimić, I., Hohenwarter, A., Đokić, V. R.,& Rakin, M. P.. (2018). The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion. in Procedia Structural Integrity, 13, 1834-1839.
https://doi.org/10.1016/j.prostr.2018.12.332

Barjaktarević DR, Bajat JB, Cvijović-Alagić I, Dimić I, Hohenwarter A, Đokić VR, Rakin MP. The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion. in Procedia Structural Integrity. 2018;13:1834-1839.
doi:10.1016/j.prostr.2018.12.332 .

Barjaktarević, Dragana R., Bajat, Jelena B., Cvijović-Alagić, Ivana, Dimić, Ivana, Hohenwarter, Anton, Đokić, Veljko R., Rakin, Marko P., "The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion" in Procedia Structural Integrity, 13 (2018):1834-1839,
https://doi.org/10.1016/j.prostr.2018.12.332 . .

TY  - JOUR
AU  - Barjaktarević, Dragana R.
AU  - Dimić, Ivana 
AU  - Cvijović-Alagić, Ivana
AU  - Veljović, Đorđe N.
AU  - Rakin, Marko P.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1854
AB  - The enhancement of commercially pure titanium (cpTi) mechanical properties, which is required for its medical application, can be achieved by grain refinement obtained by severe plastic deformation. In addition to mechanical properties improvement, excellent corrosion resistance of ultrafine-grained (UFG) cpTi in contact with human body fluids is required. Therefore, the aim of this study was to estimate electrochemical behavior of UFG cpTi obtained by high pressure torsion (HPT) under a pressure of 7,8 GPa at room temperature and up to 5 rotations. Electrochemical measurements were performed in artificial saliva at 37 degrees C in order to simulate oral environment, since development of UFG cpTi is primarily aimed for dental implant applications. Electrochemical behavior of UFG cpTi was investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. The obtained results indicate that HPT process, through significant grain size reduction, increases corrosion resistance of cpTi.
T2  - Tehnički vjesnik - Technical Gazette
T1  - Corrosion Resistance of High Pressure Torsion Obtained Commercially Pure Titanium in Acidic Solution
VL  - 24
IS  - 6
SP  - 1689
EP  - 1695
DO  - 10.17559/TV-20160303141534
ER  - 

@article{
author = "Barjaktarević, Dragana R. and Dimić, Ivana  and Cvijović-Alagić, Ivana and Veljović, Đorđe N. and Rakin, Marko P.",
year = "2017",
abstract = "The enhancement of commercially pure titanium (cpTi) mechanical properties, which is required for its medical application, can be achieved by grain refinement obtained by severe plastic deformation. In addition to mechanical properties improvement, excellent corrosion resistance of ultrafine-grained (UFG) cpTi in contact with human body fluids is required. Therefore, the aim of this study was to estimate electrochemical behavior of UFG cpTi obtained by high pressure torsion (HPT) under a pressure of 7,8 GPa at room temperature and up to 5 rotations. Electrochemical measurements were performed in artificial saliva at 37 degrees C in order to simulate oral environment, since development of UFG cpTi is primarily aimed for dental implant applications. Electrochemical behavior of UFG cpTi was investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. The obtained results indicate that HPT process, through significant grain size reduction, increases corrosion resistance of cpTi.",
journal = "Tehnički vjesnik - Technical Gazette",
title = "Corrosion Resistance of High Pressure Torsion Obtained Commercially Pure Titanium in Acidic Solution",
volume = "24",
number = "6",
pages = "1689-1695",
doi = "10.17559/TV-20160303141534"
}

Barjaktarević, D. R., Dimić, I., Cvijović-Alagić, I., Veljović, Đ. N.,& Rakin, M. P.. (2017). Corrosion Resistance of High Pressure Torsion Obtained Commercially Pure Titanium in Acidic Solution. in Tehnički vjesnik - Technical Gazette, 24(6), 1689-1695.
https://doi.org/10.17559/TV-20160303141534

Barjaktarević DR, Dimić I, Cvijović-Alagić I, Veljović ĐN, Rakin MP. Corrosion Resistance of High Pressure Torsion Obtained Commercially Pure Titanium in Acidic Solution. in Tehnički vjesnik - Technical Gazette. 2017;24(6):1689-1695.
doi:10.17559/TV-20160303141534 .

Barjaktarević, Dragana R., Dimić, Ivana , Cvijović-Alagić, Ivana, Veljović, Đorđe N., Rakin, Marko P., "Corrosion Resistance of High Pressure Torsion Obtained Commercially Pure Titanium in Acidic Solution" in Tehnički vjesnik - Technical Gazette, 24, no. 6 (2017):1689-1695,
https://doi.org/10.17559/TV-20160303141534 . .

TY  - JOUR
AU  - Jovanović, Milan T.
AU  - Ilić, Nenad
AU  - Cvijović-Alagić, Ivana
AU  - Maksimović, Vesna
AU  - Zec, Slavica
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1833
AB  - Experimental results on processing, structural and mechanical characterization of a multilayer composite based on commercially pure aluminum foils were presented. A multilayer composite was produced by hot-rolling of anodized and non-anodized aluminum foils alternately sandwiched. In addition, the same process was applied for bonding of non-anodized foils. In both cases, obtained multilayer composites were compact and sound. In order to study composites microstructural evolution and mechanical properties, optical and scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffraction (XRD) analysis, hardness, tensile and three-point flexural tests were performed. Microstructural characterization confirmed that the rod-like particles distributed in parallel rows in the composite aluminum matrix with anodized foils correspond to Al2O3. Maximum and minimum peaks of oxygen and aluminum, respectively, suggest that after the final hot-rolling of composite with non-anodized foils, a small amount of coarser particles were formed at boundaries between foils. Hardness, strength, modulus of elasticity and flexural strength of both multilayer composites were much higher than those of pure aluminum, whereas ductility was significantly less. The composite with anodized foils exhibited the highest strength and modulus of elasticity, but lower ductility compared to composite processed from non-anodized foils. Fracture failure corresponded to the change of ductility.
T2  - Transactions of Nonferrous Metals Society of China
T1  - Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils
VL  - 27
IS  - 9
SP  - 1907
EP  - 1919
DO  - 10.1016/S1003-6326(17)60215-2
ER  - 

@article{
author = "Jovanović, Milan T. and Ilić, Nenad and Cvijović-Alagić, Ivana and Maksimović, Vesna and Zec, Slavica",
year = "2017",
abstract = "Experimental results on processing, structural and mechanical characterization of a multilayer composite based on commercially pure aluminum foils were presented. A multilayer composite was produced by hot-rolling of anodized and non-anodized aluminum foils alternately sandwiched. In addition, the same process was applied for bonding of non-anodized foils. In both cases, obtained multilayer composites were compact and sound. In order to study composites microstructural evolution and mechanical properties, optical and scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffraction (XRD) analysis, hardness, tensile and three-point flexural tests were performed. Microstructural characterization confirmed that the rod-like particles distributed in parallel rows in the composite aluminum matrix with anodized foils correspond to Al2O3. Maximum and minimum peaks of oxygen and aluminum, respectively, suggest that after the final hot-rolling of composite with non-anodized foils, a small amount of coarser particles were formed at boundaries between foils. Hardness, strength, modulus of elasticity and flexural strength of both multilayer composites were much higher than those of pure aluminum, whereas ductility was significantly less. The composite with anodized foils exhibited the highest strength and modulus of elasticity, but lower ductility compared to composite processed from non-anodized foils. Fracture failure corresponded to the change of ductility.",
journal = "Transactions of Nonferrous Metals Society of China",
title = "Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils",
volume = "27",
number = "9",
pages = "1907-1919",
doi = "10.1016/S1003-6326(17)60215-2"
}

Jovanović, M. T., Ilić, N., Cvijović-Alagić, I., Maksimović, V.,& Zec, S.. (2017). Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils. in Transactions of Nonferrous Metals Society of China, 27(9), 1907-1919.
https://doi.org/10.1016/S1003-6326(17)60215-2

Jovanović MT, Ilić N, Cvijović-Alagić I, Maksimović V, Zec S. Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils. in Transactions of Nonferrous Metals Society of China. 2017;27(9):1907-1919.
doi:10.1016/S1003-6326(17)60215-2 .

Jovanović, Milan T., Ilić, Nenad, Cvijović-Alagić, Ivana, Maksimović, Vesna, Zec, Slavica, "Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils" in Transactions of Nonferrous Metals Society of China, 27, no. 9 (2017):1907-1919,
https://doi.org/10.1016/S1003-6326(17)60215-2 . .

TY  - JOUR
AU  - Jovanović, Milan T.
AU  - Drobnjak, Đorđe
AU  - Cvijović-Alagić, Ivana
AU  - Maksimović, Vesna
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1711
AB  - Tensile properties and fracture mechanism of a polycrystalline IN-100 superalloy have been investigated in the range from room temperature to 900 degrees C. Optical microscopy (OM) and transmission electron microscopy (TEM) applying replica technique were used for microstructural investigation, whereas scanning electron microscopy (SEM) was utilized for fracture study. High temperature tensile tests were carried out in vacuumed chamber. Results show that strength increases up to 700 degrees C, and then sharply decreases with further increase in temperature. Elongation increases very slowly (6-7.5%) till 500 degrees C, then decreases to 4.5% at 900 degrees C. Change in elongation may be ascribed to a change of fracture mechanism. Appearance of a great number of microvoids prevails up to 500 degrees C resulting in a slow increase of elongation, whereas above this temperature elongation decrease is correlated with intergranular crystallographic fracture and fracture of carbides.
T2  - Metallurgical and Materials Engineering
T1  - Tensile Properties and Fracture Mechanism of In-100 Superalloy in High Temperature Range
VL  - 23
IS  - 2
SP  - 99
EP  - 107
UR  - https://hdl.handle.net/21.15107/rcub_vinar_1711
ER  - 

@article{
author = "Jovanović, Milan T. and Drobnjak, Đorđe and Cvijović-Alagić, Ivana and Maksimović, Vesna",
year = "2017",
abstract = "Tensile properties and fracture mechanism of a polycrystalline IN-100 superalloy have been investigated in the range from room temperature to 900 degrees C. Optical microscopy (OM) and transmission electron microscopy (TEM) applying replica technique were used for microstructural investigation, whereas scanning electron microscopy (SEM) was utilized for fracture study. High temperature tensile tests were carried out in vacuumed chamber. Results show that strength increases up to 700 degrees C, and then sharply decreases with further increase in temperature. Elongation increases very slowly (6-7.5%) till 500 degrees C, then decreases to 4.5% at 900 degrees C. Change in elongation may be ascribed to a change of fracture mechanism. Appearance of a great number of microvoids prevails up to 500 degrees C resulting in a slow increase of elongation, whereas above this temperature elongation decrease is correlated with intergranular crystallographic fracture and fracture of carbides.",
journal = "Metallurgical and Materials Engineering",
title = "Tensile Properties and Fracture Mechanism of In-100 Superalloy in High Temperature Range",
volume = "23",
number = "2",
pages = "99-107",
url = "https://hdl.handle.net/21.15107/rcub_vinar_1711"
}

Jovanović, M. T., Drobnjak, Đ., Cvijović-Alagić, I.,& Maksimović, V.. (2017). Tensile Properties and Fracture Mechanism of In-100 Superalloy in High Temperature Range. in Metallurgical and Materials Engineering, 23(2), 99-107.
https://hdl.handle.net/21.15107/rcub_vinar_1711

Jovanović MT, Drobnjak Đ, Cvijović-Alagić I, Maksimović V. Tensile Properties and Fracture Mechanism of In-100 Superalloy in High Temperature Range. in Metallurgical and Materials Engineering. 2017;23(2):99-107.
https://hdl.handle.net/21.15107/rcub_vinar_1711 .

Jovanović, Milan T., Drobnjak, Đorđe, Cvijović-Alagić, Ivana, Maksimović, Vesna, "Tensile Properties and Fracture Mechanism of In-100 Superalloy in High Temperature Range" in Metallurgical and Materials Engineering, 23, no. 2 (2017):99-107,
https://hdl.handle.net/21.15107/rcub_vinar_1711 .

TY  - JOUR
AU  - Musraty, Walid
AU  - Međo, Bojan
AU  - Gubeljak, Nenad
AU  - Likeb, Andrej
AU  - Cvijović-Alagić, Ivana
AU  - Sedmak, Aleksandar S.
AU  - Rakin, Marko P.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1532
AB  - Integrity of pipes is typically assessed by testing fracture mechanics specimens, such as compact tensile (CT) or single-edge notched bending (SENB). However, for some pipe dimensions it is not easy or possible to fabricate a specimen conforming to the requirements of standard procedures. A new type of specimen is proposed recently, which can be advantageous for relatively small pipe diameters and axial defects - the pipe ring notch bend specimen - PRNB. In this work, criteria for failure by ductile fracture of PRNB specimens are determined experimentally and by application of micromechanical analysis. The influence of size of the specimen, as well as size and shape of the stress concentrator, is analysed. The results of this study, along with previous authors results, lead to the conclusion that the pipe ring specimens can be applied in integrity assessment of pipes with defects. Also, the benefits of their application include much simpler fabrication and the same material history as the pipe itself. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Engineering Fracture Mechanics
T1  - Ductile fracture of pipe-ring notched bend specimens - Micromechanical analysis
VL  - 175
SP  - 247
EP  - 261
DO  - 10.1016/j.engfracmech.2017.01.022
ER  - 

@article{
author = "Musraty, Walid and Međo, Bojan and Gubeljak, Nenad and Likeb, Andrej and Cvijović-Alagić, Ivana and Sedmak, Aleksandar S. and Rakin, Marko P.",
year = "2017",
abstract = "Integrity of pipes is typically assessed by testing fracture mechanics specimens, such as compact tensile (CT) or single-edge notched bending (SENB). However, for some pipe dimensions it is not easy or possible to fabricate a specimen conforming to the requirements of standard procedures. A new type of specimen is proposed recently, which can be advantageous for relatively small pipe diameters and axial defects - the pipe ring notch bend specimen - PRNB. In this work, criteria for failure by ductile fracture of PRNB specimens are determined experimentally and by application of micromechanical analysis. The influence of size of the specimen, as well as size and shape of the stress concentrator, is analysed. The results of this study, along with previous authors results, lead to the conclusion that the pipe ring specimens can be applied in integrity assessment of pipes with defects. Also, the benefits of their application include much simpler fabrication and the same material history as the pipe itself. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Engineering Fracture Mechanics",
title = "Ductile fracture of pipe-ring notched bend specimens - Micromechanical analysis",
volume = "175",
pages = "247-261",
doi = "10.1016/j.engfracmech.2017.01.022"
}

Musraty, W., Međo, B., Gubeljak, N., Likeb, A., Cvijović-Alagić, I., Sedmak, A. S.,& Rakin, M. P.. (2017). Ductile fracture of pipe-ring notched bend specimens - Micromechanical analysis. in Engineering Fracture Mechanics, 175, 247-261.
https://doi.org/10.1016/j.engfracmech.2017.01.022

Musraty W, Međo B, Gubeljak N, Likeb A, Cvijović-Alagić I, Sedmak AS, Rakin MP. Ductile fracture of pipe-ring notched bend specimens - Micromechanical analysis. in Engineering Fracture Mechanics. 2017;175:247-261.
doi:10.1016/j.engfracmech.2017.01.022 .

Musraty, Walid, Međo, Bojan, Gubeljak, Nenad, Likeb, Andrej, Cvijović-Alagić, Ivana, Sedmak, Aleksandar S., Rakin, Marko P., "Ductile fracture of pipe-ring notched bend specimens - Micromechanical analysis" in Engineering Fracture Mechanics, 175 (2017):247-261,
https://doi.org/10.1016/j.engfracmech.2017.01.022 . .

TY  - JOUR
AU  - Barjaktarević, Dragana R.
AU  - Cvijović-Alagić, Ivana
AU  - Dimić, Ivana
AU  - Đokić, Veljko R.
AU  - Rakin, Marko P.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1709
AB  - Commercially pure titanium (cpTi) and titanium alloys are the most commonly used metallic biomaterials. Biomedical requirements for the successful usage of metallic implant materials include their high mechanical strength, low elastic modulus, excellent biocompatibility and high corrosion resistance. It is evident that the response of a biomaterial implanted into the human body depends entirely on its biocompatibility and surface properties. Therefore, in order to improve the performance of biomaterials in biological systems modification of their surface is necessary. One of most commonly used method of implant materials surface modification is electrochemical anodization and this method is reviewed in the present work. Aim of the presented review article is to explain the electrochemical anodization process and the way in which the nanotubes are formed by anodization on the metallic material surface. Influence of anodizing parameters on the nanotubes characteristics, such as nanotube diameter, length and nanotubular layer thickness, are described, as well as the anodized nanotubes influence on the material surface properties, corrosion resistance and biocompatibility.
T2  - Metallurgical and Materials Engineering
T1  - Anodization of Ti-Based Materials for Biomedical Applications: a Review
VL  - 22
IS  - 3
SP  - 129
EP  - 143
DO  - 10.30544/209
UR  - https://hdl.handle.net/21.15107/rcub_vinar_1709
ER  - 

@article{
author = "Barjaktarević, Dragana R. and Cvijović-Alagić, Ivana and Dimić, Ivana and Đokić, Veljko R. and Rakin, Marko P.",
year = "2016",
abstract = "Commercially pure titanium (cpTi) and titanium alloys are the most commonly used metallic biomaterials. Biomedical requirements for the successful usage of metallic implant materials include their high mechanical strength, low elastic modulus, excellent biocompatibility and high corrosion resistance. It is evident that the response of a biomaterial implanted into the human body depends entirely on its biocompatibility and surface properties. Therefore, in order to improve the performance of biomaterials in biological systems modification of their surface is necessary. One of most commonly used method of implant materials surface modification is electrochemical anodization and this method is reviewed in the present work. Aim of the presented review article is to explain the electrochemical anodization process and the way in which the nanotubes are formed by anodization on the metallic material surface. Influence of anodizing parameters on the nanotubes characteristics, such as nanotube diameter, length and nanotubular layer thickness, are described, as well as the anodized nanotubes influence on the material surface properties, corrosion resistance and biocompatibility.",
journal = "Metallurgical and Materials Engineering",
title = "Anodization of Ti-Based Materials for Biomedical Applications: a Review",
volume = "22",
number = "3",
pages = "129-143",
doi = "10.30544/209",
url = "https://hdl.handle.net/21.15107/rcub_vinar_1709"
}

Barjaktarević, D. R., Cvijović-Alagić, I., Dimić, I., Đokić, V. R.,& Rakin, M. P.. (2016). Anodization of Ti-Based Materials for Biomedical Applications: a Review. in Metallurgical and Materials Engineering, 22(3), 129-143.
https://doi.org/10.30544/209
https://hdl.handle.net/21.15107/rcub_vinar_1709

Barjaktarević DR, Cvijović-Alagić I, Dimić I, Đokić VR, Rakin MP. Anodization of Ti-Based Materials for Biomedical Applications: a Review. in Metallurgical and Materials Engineering. 2016;22(3):129-143.
doi:10.30544/209
https://hdl.handle.net/21.15107/rcub_vinar_1709 .

Barjaktarević, Dragana R., Cvijović-Alagić, Ivana, Dimić, Ivana, Đokić, Veljko R., Rakin, Marko P., "Anodization of Ti-Based Materials for Biomedical Applications: a Review" in Metallurgical and Materials Engineering, 22, no. 3 (2016):129-143,
https://doi.org/10.30544/209 .,
https://hdl.handle.net/21.15107/rcub_vinar_1709 .

TY  - JOUR
AU  - Dimić, Ivana 
AU  - Cvijović-Alagić, Ivana
AU  - Voelker, Bernhard
AU  - Hohenwarter, Anton
AU  - Pippan, Reinhard
AU  - Veljović, Đorđe N.
AU  - Rakin, Marko P.
AU  - Bugarski, Branko M.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/871
AB  - Significant enhancement of mechanical properties of metallic biomaterials can be achieved by grain refinement obtained by severe plastic deformation. The purpose of this study was to determine metallic ion release from commercially pure titanium (CPTi) and Ti-13Nb-13Zr alloy processed by high pressure torsion (HPT). The materials microstructures, in the initial state and after HPT deformation, were examined by scanning and transmission electron microscopy. The microhardness was determined along the radius of the disc-shaped samples of ultrafine-grained (UFG) CPTi and Ti-13Nb-13Zr alloy in order to evaluate homogeneity of HPT-processed materials. The quantities of released ions were determined using inductively coupled plasma-mass spectrophotometer for samples immersed in artificial saliva at 37 degrees C for 7 days. Also, the effect of artificial saliva pH value on metallic ion release was estimated. Obtained results revealed that the quantities of released ions from UFG CPTi and Ti-13Nb-13Zr alloy obtained by HPT process were higher than the quantities of released ions from CPTi and Ti-13Nb-13Zr alloy produced by traditional casting. This behavior can be explained by the fact that metallic ions are easily released from microstructure with smaller grains achieved by HPT process. (C) 2015 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Materials and Design
T1  - Microstructure and metallic ion release of pure titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion
VL  - 91
SP  - 340
EP  - 347
DO  - 10.1016/j.matdes.2015.11.088
ER  - 

@article{
author = "Dimić, Ivana  and Cvijović-Alagić, Ivana and Voelker, Bernhard and Hohenwarter, Anton and Pippan, Reinhard and Veljović, Đorđe N. and Rakin, Marko P. and Bugarski, Branko M.",
year = "2016",
abstract = "Significant enhancement of mechanical properties of metallic biomaterials can be achieved by grain refinement obtained by severe plastic deformation. The purpose of this study was to determine metallic ion release from commercially pure titanium (CPTi) and Ti-13Nb-13Zr alloy processed by high pressure torsion (HPT). The materials microstructures, in the initial state and after HPT deformation, were examined by scanning and transmission electron microscopy. The microhardness was determined along the radius of the disc-shaped samples of ultrafine-grained (UFG) CPTi and Ti-13Nb-13Zr alloy in order to evaluate homogeneity of HPT-processed materials. The quantities of released ions were determined using inductively coupled plasma-mass spectrophotometer for samples immersed in artificial saliva at 37 degrees C for 7 days. Also, the effect of artificial saliva pH value on metallic ion release was estimated. Obtained results revealed that the quantities of released ions from UFG CPTi and Ti-13Nb-13Zr alloy obtained by HPT process were higher than the quantities of released ions from CPTi and Ti-13Nb-13Zr alloy produced by traditional casting. This behavior can be explained by the fact that metallic ions are easily released from microstructure with smaller grains achieved by HPT process. (C) 2015 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Materials and Design",
title = "Microstructure and metallic ion release of pure titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion",
volume = "91",
pages = "340-347",
doi = "10.1016/j.matdes.2015.11.088"
}

Dimić, I., Cvijović-Alagić, I., Voelker, B., Hohenwarter, A., Pippan, R., Veljović, Đ. N., Rakin, M. P.,& Bugarski, B. M.. (2016). Microstructure and metallic ion release of pure titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion. in Materials and Design
Elsevier., 91, 340-347.
https://doi.org/10.1016/j.matdes.2015.11.088

Dimić I, Cvijović-Alagić I, Voelker B, Hohenwarter A, Pippan R, Veljović ĐN, Rakin MP, Bugarski BM. Microstructure and metallic ion release of pure titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion. in Materials and Design. 2016;91:340-347.
doi:10.1016/j.matdes.2015.11.088 .

Dimić, Ivana , Cvijović-Alagić, Ivana, Voelker, Bernhard, Hohenwarter, Anton, Pippan, Reinhard, Veljović, Đorđe N., Rakin, Marko P., Bugarski, Branko M., "Microstructure and metallic ion release of pure titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion" in Materials and Design, 91 (2016):340-347,
https://doi.org/10.1016/j.matdes.2015.11.088 . .

TY  - JOUR
AU  - Cvijović-Alagić, Ivana
AU  - Cvijović, Zorica M.
AU  - Bajat, Jelena B.
AU  - Rakin, Marko P.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1280
AB  - The electrochemical behaviour of the Ti-6Al-4V ELI alloy with different microstructures was investigated in Ringers solution at 25 degrees C. It was found that the properties of both inner barrier and outer porous layers of the passive film were dependent on the microstructural morphology and distribution of the alloying elements resulting in various amounts of their oxides incorporated in the TiO2 matrix. A more resistant and capacitive barrier layer formed on the alloy with fully lamellar, martensitic and globular microstructures in different thickness assured its high corrosion protection. The improved corrosion resistance of the alloy with equiaxed microstructure was provided by the existence of the larger amounts of the Al2O3 and V2O5 oxides, contributing to higher resistance of the outer porous layer. The Al2O3 amount is smaller than that of the V2O5 oxide due to its higher dissolution, especially in the case of the alloy with fully lamellar microstructure, resulting in the formation of a more porous outer layer.
T2  - Materials and Corrosion (Werkstoffe und Korrosion)
T1  - Electrochemical behaviour of Ti-6Al-4V alloy with different microstructures in a simulated bio-environment
VL  - 67
IS  - 10
SP  - 1075
EP  - 1087
DO  - 10.1002/maco.201508796
ER  - 

@article{
author = "Cvijović-Alagić, Ivana and Cvijović, Zorica M. and Bajat, Jelena B. and Rakin, Marko P.",
year = "2016",
abstract = "The electrochemical behaviour of the Ti-6Al-4V ELI alloy with different microstructures was investigated in Ringers solution at 25 degrees C. It was found that the properties of both inner barrier and outer porous layers of the passive film were dependent on the microstructural morphology and distribution of the alloying elements resulting in various amounts of their oxides incorporated in the TiO2 matrix. A more resistant and capacitive barrier layer formed on the alloy with fully lamellar, martensitic and globular microstructures in different thickness assured its high corrosion protection. The improved corrosion resistance of the alloy with equiaxed microstructure was provided by the existence of the larger amounts of the Al2O3 and V2O5 oxides, contributing to higher resistance of the outer porous layer. The Al2O3 amount is smaller than that of the V2O5 oxide due to its higher dissolution, especially in the case of the alloy with fully lamellar microstructure, resulting in the formation of a more porous outer layer.",
journal = "Materials and Corrosion (Werkstoffe und Korrosion)",
title = "Electrochemical behaviour of Ti-6Al-4V alloy with different microstructures in a simulated bio-environment",
volume = "67",
number = "10",
pages = "1075-1087",
doi = "10.1002/maco.201508796"
}

Cvijović-Alagić, I., Cvijović, Z. M., Bajat, J. B.,& Rakin, M. P.. (2016). Electrochemical behaviour of Ti-6Al-4V alloy with different microstructures in a simulated bio-environment. in Materials and Corrosion (Werkstoffe und Korrosion), 67(10), 1075-1087.
https://doi.org/10.1002/maco.201508796

Cvijović-Alagić I, Cvijović ZM, Bajat JB, Rakin MP. Electrochemical behaviour of Ti-6Al-4V alloy with different microstructures in a simulated bio-environment. in Materials and Corrosion (Werkstoffe und Korrosion). 2016;67(10):1075-1087.
doi:10.1002/maco.201508796 .

Cvijović-Alagić, Ivana, Cvijović, Zorica M., Bajat, Jelena B., Rakin, Marko P., "Electrochemical behaviour of Ti-6Al-4V alloy with different microstructures in a simulated bio-environment" in Materials and Corrosion (Werkstoffe und Korrosion), 67, no. 10 (2016):1075-1087,
https://doi.org/10.1002/maco.201508796 . .

TY  - JOUR
AU  - Jovanović, Milan T.
AU  - Maksimović, Vesna
AU  - Cvijović-Alagić, Ivana
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1030
AB  - Jet engine turbine blade cast by investment precision casting of Ni-base superalloy, which failed during exploatation, was the subject of investigation. Failure analysis was executed applying optical microscopy (OM), transmission electron microscopy (TEM) using replica technique, scaning electron microscopy (SEM) and stress rupture life tests. On the ground of obtained results it was concluded that the failure occurred as a result of structural changes caused by turbine blade overheating above the exploitation temperature.
T2  - Metallurgical and Materials Engineering
T1  - Failure Analysis of Jet Engine Turbine Blade
VL  - 22
IS  - 1
SP  - 31
EP  - 37
DO  - 10.30544/138
ER  - 

@article{
author = "Jovanović, Milan T. and Maksimović, Vesna and Cvijović-Alagić, Ivana",
year = "2016",
abstract = "Jet engine turbine blade cast by investment precision casting of Ni-base superalloy, which failed during exploatation, was the subject of investigation. Failure analysis was executed applying optical microscopy (OM), transmission electron microscopy (TEM) using replica technique, scaning electron microscopy (SEM) and stress rupture life tests. On the ground of obtained results it was concluded that the failure occurred as a result of structural changes caused by turbine blade overheating above the exploitation temperature.",
journal = "Metallurgical and Materials Engineering",
title = "Failure Analysis of Jet Engine Turbine Blade",
volume = "22",
number = "1",
pages = "31-37",
doi = "10.30544/138"
}

Jovanović, M. T., Maksimović, V.,& Cvijović-Alagić, I.. (2016). Failure Analysis of Jet Engine Turbine Blade. in Metallurgical and Materials Engineering, 22(1), 31-37.
https://doi.org/10.30544/138

Jovanović MT, Maksimović V, Cvijović-Alagić I. Failure Analysis of Jet Engine Turbine Blade. in Metallurgical and Materials Engineering. 2016;22(1):31-37.
doi:10.30544/138 .

Jovanović, Milan T., Maksimović, Vesna, Cvijović-Alagić, Ivana, "Failure Analysis of Jet Engine Turbine Blade" in Metallurgical and Materials Engineering, 22, no. 1 (2016):31-37,
https://doi.org/10.30544/138 . .

TY  - JOUR
AU  - Dimić, Ivana 
AU  - Cvijović-Alagić, Ivana
AU  - Obradović, Nataša
AU  - Petrović, Jelena
AU  - Putić, Slaviša S.
AU  - Rakin, Marko P.
AU  - Bugarski, Branko M.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/870
AB  - Metallic materials, such as Co-Cr-Mo alloys, are exposed to aggressive conditions in the oral cavity that represents an ideal environment for metallic ion release and biodegradation. The metallic ions released from dental materials can cause local and/or systemic adverse effects in the human body. Therefore, dental materials are required to possess appropriate mechanical, physical, chemical and biological properties. The biocompatibility of metallic materials is very important for dental applications. Accordingly, the aim of this study was to examine metallic ion release and cytotoxicity of Co-30Cr-5Mo cast alloy as the initial phase of biocompatibility evaluation. Determination of the viability of human (MRC-5) and animal (L929) fibroblast cells were conducted using three in vitro test methods: the colorimetric methyl-thiazol-tetrazolium (MTT) test, the dye exclusion test (DET) and the agar diffusion test (ADT). Furthermore, the morphology and growth of the cells were analyzed using scanning electron microscopy (SEM). The obtained results indicated that Co-30Cr-5Mo alloy did not release harmful elements in concentrations high enough to have detrimental effects on human and animal fibroblasts under the given experimental conditions. Moreover, the fibroblast cells showed good adhesion on the surface of the Co-30Cr-5Mo alloy. Therefore, it could be concluded that Co-30Cr-5Mo alloy is a biocompatible material that could be safely used in dentistry.
T2  - Journal of the Serbian Chemical Society
T1  - In vitro biocompatibility assessment of Co-Cr-Mo dental cast alloy
VL  - 80
IS  - 12
SP  - 1541
EP  - 1552
DO  - 10.2298/JSC150505070M
ER  - 

@article{
author = "Dimić, Ivana  and Cvijović-Alagić, Ivana and Obradović, Nataša and Petrović, Jelena and Putić, Slaviša S. and Rakin, Marko P. and Bugarski, Branko M.",
year = "2015",
abstract = "Metallic materials, such as Co-Cr-Mo alloys, are exposed to aggressive conditions in the oral cavity that represents an ideal environment for metallic ion release and biodegradation. The metallic ions released from dental materials can cause local and/or systemic adverse effects in the human body. Therefore, dental materials are required to possess appropriate mechanical, physical, chemical and biological properties. The biocompatibility of metallic materials is very important for dental applications. Accordingly, the aim of this study was to examine metallic ion release and cytotoxicity of Co-30Cr-5Mo cast alloy as the initial phase of biocompatibility evaluation. Determination of the viability of human (MRC-5) and animal (L929) fibroblast cells were conducted using three in vitro test methods: the colorimetric methyl-thiazol-tetrazolium (MTT) test, the dye exclusion test (DET) and the agar diffusion test (ADT). Furthermore, the morphology and growth of the cells were analyzed using scanning electron microscopy (SEM). The obtained results indicated that Co-30Cr-5Mo alloy did not release harmful elements in concentrations high enough to have detrimental effects on human and animal fibroblasts under the given experimental conditions. Moreover, the fibroblast cells showed good adhesion on the surface of the Co-30Cr-5Mo alloy. Therefore, it could be concluded that Co-30Cr-5Mo alloy is a biocompatible material that could be safely used in dentistry.",
journal = "Journal of the Serbian Chemical Society",
title = "In vitro biocompatibility assessment of Co-Cr-Mo dental cast alloy",
volume = "80",
number = "12",
pages = "1541-1552",
doi = "10.2298/JSC150505070M"
}

Dimić, I., Cvijović-Alagić, I., Obradović, N., Petrović, J., Putić, S. S., Rakin, M. P.,& Bugarski, B. M.. (2015). In vitro biocompatibility assessment of Co-Cr-Mo dental cast alloy. in Journal of the Serbian Chemical Society, 80(12), 1541-1552.
https://doi.org/10.2298/JSC150505070M

Dimić I, Cvijović-Alagić I, Obradović N, Petrović J, Putić SS, Rakin MP, Bugarski BM. In vitro biocompatibility assessment of Co-Cr-Mo dental cast alloy. in Journal of the Serbian Chemical Society. 2015;80(12):1541-1552.
doi:10.2298/JSC150505070M .

Dimić, Ivana , Cvijović-Alagić, Ivana, Obradović, Nataša, Petrović, Jelena, Putić, Slaviša S., Rakin, Marko P., Bugarski, Branko M., "In vitro biocompatibility assessment of Co-Cr-Mo dental cast alloy" in Journal of the Serbian Chemical Society, 80, no. 12 (2015):1541-1552,
https://doi.org/10.2298/JSC150505070M . .

TY  - JOUR
AU  - Cvijović-Alagić, Ivana
AU  - Cvijović, Zorica M.
AU  - Bajat, Jelena B.
AU  - Rakin, Marko P.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5977
AB  - The electrochemical behaviour of the Ti-13Nb-13Zr and Ti-6Al-4V ELI alloys with martensitic microstructures was investigated by polarization and electrochemical impedance spectroscopy (EIS) in Ringers solution. The impedance spectra were interpreted by a two time-constants equivalent circuit. Both investigated alloys showed high corrosion resistance, but the thin and uniform passive film on the Ti-6Al-4V ELI alloy surface was more protective. The inner barrier and outer porous layer were highly resistant and capacitive. However, thicker and more porous passive film on the Ti-13Nb-13Zr alloy surface may be beneficial for osteointegration. The suitable thermomechanical processing improved the corrosion resistance of Ti-13Nb-13Zr alloy. (c) 2014 Elsevier Ltd. All rights reserved.
T2  - Corrosion Science
T1  - Composition and processing effects on the electrochemical characteristics of biomedical titanium alloys
VL  - 83
SP  - 245
EP  - 254
DO  - 10.1016/j.corsci.2014.02.017
ER  - 

@article{
author = "Cvijović-Alagić, Ivana and Cvijović, Zorica M. and Bajat, Jelena B. and Rakin, Marko P.",
year = "2014",
abstract = "The electrochemical behaviour of the Ti-13Nb-13Zr and Ti-6Al-4V ELI alloys with martensitic microstructures was investigated by polarization and electrochemical impedance spectroscopy (EIS) in Ringers solution. The impedance spectra were interpreted by a two time-constants equivalent circuit. Both investigated alloys showed high corrosion resistance, but the thin and uniform passive film on the Ti-6Al-4V ELI alloy surface was more protective. The inner barrier and outer porous layer were highly resistant and capacitive. However, thicker and more porous passive film on the Ti-13Nb-13Zr alloy surface may be beneficial for osteointegration. The suitable thermomechanical processing improved the corrosion resistance of Ti-13Nb-13Zr alloy. (c) 2014 Elsevier Ltd. All rights reserved.",
journal = "Corrosion Science",
title = "Composition and processing effects on the electrochemical characteristics of biomedical titanium alloys",
volume = "83",
pages = "245-254",
doi = "10.1016/j.corsci.2014.02.017"
}

Cvijović-Alagić, I., Cvijović, Z. M., Bajat, J. B.,& Rakin, M. P.. (2014). Composition and processing effects on the electrochemical characteristics of biomedical titanium alloys. in Corrosion Science, 83, 245-254.
https://doi.org/10.1016/j.corsci.2014.02.017

Cvijović-Alagić I, Cvijović ZM, Bajat JB, Rakin MP. Composition and processing effects on the electrochemical characteristics of biomedical titanium alloys. in Corrosion Science. 2014;83:245-254.
doi:10.1016/j.corsci.2014.02.017 .

Cvijović-Alagić, Ivana, Cvijović, Zorica M., Bajat, Jelena B., Rakin, Marko P., "Composition and processing effects on the electrochemical characteristics of biomedical titanium alloys" in Corrosion Science, 83 (2014):245-254,
https://doi.org/10.1016/j.corsci.2014.02.017 . .

TY  - JOUR
AU  - Dimić, Ivana 
AU  - Cvijović-Alagić, Ivana
AU  - Kostic, Ivana T.
AU  - Perić-Grujić, Aleksandra A.
AU  - Rakin, Marko P.
AU  - Putić, Slaviša S.
AU  - Bugarski, Branko M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/310
AB  - Metallic biomaterials, which are mainly used for the damaged hard tissue replacements, are materials with high strength, excellent toughness and good wear resistance. The disadvantages of metals as implant materials are their susceptibility to corrosion, the elastic modulus mismatch between metals and human hard tissues, relatively high density and metallic ion release, which can cause serious health problems. The aim of this study was to examine metallic ion release from Co-Cr-Mo alloy in artificial saliva. In that purpose, alloy samples were immersed into artificial saliva with different pH values (4.0, 5.5 and 7.5). After a certain immersion period (1, 3 and 6 weeks) the concentrations of released ions were determined using inductively coupled plasma-mass spectrometry (ICP-MS). The research findings were used in order to define the dependence between the concentration of released metallic ions, artificial saliva pH values and immersion time. The determined released metallic ions concentrations were compared with literature data in order to describe and better understand the phenomenon of metallic ion release from the biocom-patible cobalt-based alloy.
AB  - Metalni biomaterijali, koji se najčešće koriste za zamenu oštećenih čvrstih tkiva u organizmu čoveka, su materijali velike čvrstoće, žilavosti i otpornosti prema habanju. Nedostaci metala, kao implantnih materijala, su njihova podložnost koroziji, neusklađenost modula elastičnosti metala i čvrstih ljudskih tkiva, velika gustina i otpuštanje metalnih jona koje može da izazove ozbiljne zdravstvene probleme. Cilj ovog rada je bio da se ispita otpuštanje metalnih jona iz Co-Cr-Mo legure u rastvoru veštačke pljuvačke. Uzorci legure su potopljeni u rastvor veštačke pljuvačke različite pH vrednosti (4,0, 5,5 i 7,5). Nakon određenog vremena izlaganja legure veštačkoj pljuvačci (1, 3 i 6 nedelja) određene su koncentracije otpuštenih jona primenom indukcije spregnute plazme sa masenom spektrometrijom (ICP-MS). Dobijeni rezultati su iskorišćeni u cilju definisanja zavisnosti između koncentracije otpuštenih jona, pH vrednosti veštačke pljuvačke i dužine potapanja legure u rastvor veštačke pljuvačke. Osim toga, utvrđene koncentracije otpuštenih metalnih jona iz ispitivane legure su upoređene sa podacima dostupnim u literaturi u cilju što boljeg opisivanja i razumevanja fenomena otpuštanja metalnih jona iz biokompatibilne Co-Cr-Mo legure.
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Metallic Ion Release from Biocompatible Cobalt-Based Alloy
VL  - 20
IS  - 4
SP  - 571
EP  - 577
DO  - 10.2298/CICEQ130813039D
ER  - 

@article{
author = "Dimić, Ivana  and Cvijović-Alagić, Ivana and Kostic, Ivana T. and Perić-Grujić, Aleksandra A. and Rakin, Marko P. and Putić, Slaviša S. and Bugarski, Branko M.",
year = "2014",
abstract = "Metallic biomaterials, which are mainly used for the damaged hard tissue replacements, are materials with high strength, excellent toughness and good wear resistance. The disadvantages of metals as implant materials are their susceptibility to corrosion, the elastic modulus mismatch between metals and human hard tissues, relatively high density and metallic ion release, which can cause serious health problems. The aim of this study was to examine metallic ion release from Co-Cr-Mo alloy in artificial saliva. In that purpose, alloy samples were immersed into artificial saliva with different pH values (4.0, 5.5 and 7.5). After a certain immersion period (1, 3 and 6 weeks) the concentrations of released ions were determined using inductively coupled plasma-mass spectrometry (ICP-MS). The research findings were used in order to define the dependence between the concentration of released metallic ions, artificial saliva pH values and immersion time. The determined released metallic ions concentrations were compared with literature data in order to describe and better understand the phenomenon of metallic ion release from the biocom-patible cobalt-based alloy., Metalni biomaterijali, koji se najčešće koriste za zamenu oštećenih čvrstih tkiva u organizmu čoveka, su materijali velike čvrstoće, žilavosti i otpornosti prema habanju. Nedostaci metala, kao implantnih materijala, su njihova podložnost koroziji, neusklađenost modula elastičnosti metala i čvrstih ljudskih tkiva, velika gustina i otpuštanje metalnih jona koje može da izazove ozbiljne zdravstvene probleme. Cilj ovog rada je bio da se ispita otpuštanje metalnih jona iz Co-Cr-Mo legure u rastvoru veštačke pljuvačke. Uzorci legure su potopljeni u rastvor veštačke pljuvačke različite pH vrednosti (4,0, 5,5 i 7,5). Nakon određenog vremena izlaganja legure veštačkoj pljuvačci (1, 3 i 6 nedelja) određene su koncentracije otpuštenih jona primenom indukcije spregnute plazme sa masenom spektrometrijom (ICP-MS). Dobijeni rezultati su iskorišćeni u cilju definisanja zavisnosti između koncentracije otpuštenih jona, pH vrednosti veštačke pljuvačke i dužine potapanja legure u rastvor veštačke pljuvačke. Osim toga, utvrđene koncentracije otpuštenih metalnih jona iz ispitivane legure su upoređene sa podacima dostupnim u literaturi u cilju što boljeg opisivanja i razumevanja fenomena otpuštanja metalnih jona iz biokompatibilne Co-Cr-Mo legure.",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Metallic Ion Release from Biocompatible Cobalt-Based Alloy",
volume = "20",
number = "4",
pages = "571-577",
doi = "10.2298/CICEQ130813039D"
}

Dimić, I., Cvijović-Alagić, I., Kostic, I. T., Perić-Grujić, A. A., Rakin, M. P., Putić, S. S.,& Bugarski, B. M.. (2014). Metallic Ion Release from Biocompatible Cobalt-Based Alloy. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 20(4), 571-577.
https://doi.org/10.2298/CICEQ130813039D

Dimić I, Cvijović-Alagić I, Kostic IT, Perić-Grujić AA, Rakin MP, Putić SS, Bugarski BM. Metallic Ion Release from Biocompatible Cobalt-Based Alloy. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2014;20(4):571-577.
doi:10.2298/CICEQ130813039D .

Dimić, Ivana , Cvijović-Alagić, Ivana, Kostic, Ivana T., Perić-Grujić, Aleksandra A., Rakin, Marko P., Putić, Slaviša S., Bugarski, Branko M., "Metallic Ion Release from Biocompatible Cobalt-Based Alloy" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 20, no. 4 (2014):571-577,
https://doi.org/10.2298/CICEQ130813039D . .

TY  - JOUR
AU  - Cvijović-Alagić, Ivana
AU  - Gubeljak, Nenad
AU  - Rakin, Marko P.
AU  - Cvijović, Zorica M.
AU  - Geric, K.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5755
AB  - The effects of microstructural morphology on the fracture behavior of Ti-6Al-4V ELI (extra-low impurity) alloy in two different heat treatment conditions were examined. Alloy was solution treated above (beta ST) and below (alpha + beta ST) beta transus temperature followed by furnace cooling (FC) in order to obtain the fully lamellar and equiaxed microstructures. Tensile and fracture toughness tests were conducted. The crack tip opening displacement (CTOD) and strain distribution near the crack tip were measured on the compact tension (CT) specimen surface by digital stereometric method. The crack propagation resistance (CTOD-R) curves were developed by applying the modified normalization method and critical CTOD values were determined. To identify the microstructural length scale controlling the fracture resistance of this alloy, the crack propagation path and fracture surface morphology were evaluated. It was found that the reduction in the characteristic microstructural dimension of an order of magnitude and significant change in the alpha phase aspect ratio contribute to drastic increase in the tensile properties and decrease in the crack initiation and propagation resistance. The fully lamellar microstructure displays slightly better biocompatibility because of the lower elastic modulus and superior fracture resistance. The enhanced crack propagation resistance of this microstructure is associated with the larger propensity for crack tip tortuousity, due to the coarser microstructural dimensions (lamellar colony size vs. primary alpha grain size). The difference in the crack propagation modes affects the shape and size of the actual crack tip strain distribution. These results were discussed correlating the complex multiple fracture mechanisms with the stress state in two microstructures. (C) 2013 Elsevier Ltd. All rights reserved.
T2  - Materials and Design
T1  - Microstructural morphology effects on fracture resistance and crack tip strain distribution in Ti-6Al-4V alloy for orthopedic implants
VL  - 53
SP  - 870
EP  - 880
DO  - 10.1016/j.matdes.2013.07.097
ER  - 

@article{
author = "Cvijović-Alagić, Ivana and Gubeljak, Nenad and Rakin, Marko P. and Cvijović, Zorica M. and Geric, K.",
year = "2014",
abstract = "The effects of microstructural morphology on the fracture behavior of Ti-6Al-4V ELI (extra-low impurity) alloy in two different heat treatment conditions were examined. Alloy was solution treated above (beta ST) and below (alpha + beta ST) beta transus temperature followed by furnace cooling (FC) in order to obtain the fully lamellar and equiaxed microstructures. Tensile and fracture toughness tests were conducted. The crack tip opening displacement (CTOD) and strain distribution near the crack tip were measured on the compact tension (CT) specimen surface by digital stereometric method. The crack propagation resistance (CTOD-R) curves were developed by applying the modified normalization method and critical CTOD values were determined. To identify the microstructural length scale controlling the fracture resistance of this alloy, the crack propagation path and fracture surface morphology were evaluated. It was found that the reduction in the characteristic microstructural dimension of an order of magnitude and significant change in the alpha phase aspect ratio contribute to drastic increase in the tensile properties and decrease in the crack initiation and propagation resistance. The fully lamellar microstructure displays slightly better biocompatibility because of the lower elastic modulus and superior fracture resistance. The enhanced crack propagation resistance of this microstructure is associated with the larger propensity for crack tip tortuousity, due to the coarser microstructural dimensions (lamellar colony size vs. primary alpha grain size). The difference in the crack propagation modes affects the shape and size of the actual crack tip strain distribution. These results were discussed correlating the complex multiple fracture mechanisms with the stress state in two microstructures. (C) 2013 Elsevier Ltd. All rights reserved.",
journal = "Materials and Design",
title = "Microstructural morphology effects on fracture resistance and crack tip strain distribution in Ti-6Al-4V alloy for orthopedic implants",
volume = "53",
pages = "870-880",
doi = "10.1016/j.matdes.2013.07.097"
}

Cvijović-Alagić, I., Gubeljak, N., Rakin, M. P., Cvijović, Z. M.,& Geric, K.. (2014). Microstructural morphology effects on fracture resistance and crack tip strain distribution in Ti-6Al-4V alloy for orthopedic implants. in Materials and Design, 53, 870-880.
https://doi.org/10.1016/j.matdes.2013.07.097

Cvijović-Alagić I, Gubeljak N, Rakin MP, Cvijović ZM, Geric K. Microstructural morphology effects on fracture resistance and crack tip strain distribution in Ti-6Al-4V alloy for orthopedic implants. in Materials and Design. 2014;53:870-880.
doi:10.1016/j.matdes.2013.07.097 .

Cvijović-Alagić, Ivana, Gubeljak, Nenad, Rakin, Marko P., Cvijović, Zorica M., Geric, K., "Microstructural morphology effects on fracture resistance and crack tip strain distribution in Ti-6Al-4V alloy for orthopedic implants" in Materials and Design, 53 (2014):870-880,
https://doi.org/10.1016/j.matdes.2013.07.097 . .