TY  - JOUR
AU  - Matović, Branko
AU  - Živić, Fatima
AU  - Mitrovic, Slobodan
AU  - Pršić, Dragan H.
AU  - Maksimović, Vesna
AU  - Volkov-Husović, Tatjana
AU  - Kumar, Ravi
AU  - Daneu, Nina
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/864
AB  - Cubic SiC nano-powder particles were synthesized by a sal-gel process with an average grains size of 9.5 nm which were subsequently densified by using a high-pressure anvil-type with hollows apparatus at a pressure of 4 GPa in order to obtain nanostructured bulk ceramic compacts. The density obtained was GT 98% at a sintering temperature of 1500 degrees C with a holding time of only 60s. The calculation of the average crystallite size (D) was performed on the basis of the full width at half maximum intensity (FWHM) of the XRD peaks. Williamson-Hall plots were used to separate the effect of the size and strain in the nanostructured SiC compacts. Sintered nanostructured SiC ceramic exhibits hardness and elastic modulus of 32-420 GPa respectively. Wear properties were investigated and the average value of dynamic friction coefficient obtained was 0.16. (C) 2015 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Materials Letters
T1  - Ultra-high pressure densification and properties of nanostructured SiC
VL  - 164
SP  - 68
EP  - 71
DO  - 10.1016/j.matlet.2015.09.043
ER  - 

@article{
author = "Matović, Branko and Živić, Fatima and Mitrovic, Slobodan and Pršić, Dragan H. and Maksimović, Vesna and Volkov-Husović, Tatjana and Kumar, Ravi and Daneu, Nina",
year = "2016",
abstract = "Cubic SiC nano-powder particles were synthesized by a sal-gel process with an average grains size of 9.5 nm which were subsequently densified by using a high-pressure anvil-type with hollows apparatus at a pressure of 4 GPa in order to obtain nanostructured bulk ceramic compacts. The density obtained was GT 98% at a sintering temperature of 1500 degrees C with a holding time of only 60s. The calculation of the average crystallite size (D) was performed on the basis of the full width at half maximum intensity (FWHM) of the XRD peaks. Williamson-Hall plots were used to separate the effect of the size and strain in the nanostructured SiC compacts. Sintered nanostructured SiC ceramic exhibits hardness and elastic modulus of 32-420 GPa respectively. Wear properties were investigated and the average value of dynamic friction coefficient obtained was 0.16. (C) 2015 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Ultra-high pressure densification and properties of nanostructured SiC",
volume = "164",
pages = "68-71",
doi = "10.1016/j.matlet.2015.09.043"
}

Matović, B., Živić, F., Mitrovic, S., Pršić, D. H., Maksimović, V., Volkov-Husović, T., Kumar, R.,& Daneu, N.. (2016). Ultra-high pressure densification and properties of nanostructured SiC. in Materials Letters
Elsevier., 164, 68-71.
https://doi.org/10.1016/j.matlet.2015.09.043

Matović B, Živić F, Mitrovic S, Pršić DH, Maksimović V, Volkov-Husović T, Kumar R, Daneu N. Ultra-high pressure densification and properties of nanostructured SiC. in Materials Letters. 2016;164:68-71.
doi:10.1016/j.matlet.2015.09.043 .

Matović, Branko, Živić, Fatima, Mitrovic, Slobodan, Pršić, Dragan H., Maksimović, Vesna, Volkov-Husović, Tatjana, Kumar, Ravi, Daneu, Nina, "Ultra-high pressure densification and properties of nanostructured SiC" in Materials Letters, 164 (2016):68-71,
https://doi.org/10.1016/j.matlet.2015.09.043 . .

TY  - JOUR
AU  - Bobić, Ilija
AU  - Ružić, Jovana
AU  - Bobić, Biljana M.
AU  - Babić, Miroslav
AU  - Vencl, Aleksandar
AU  - Mitrovic, Slobodan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/128
AB  - Hybrid A356/SiCp/Gr(p) composites were produced via compo-casting using the A356 aluminum alloy as the composite matrix, with silicon carbide microparticles (SiCp) and graphite macroparticles (Gr(p)) as reinforcements. The effect of the thixocasting process on the microstructure of a modified A356 alloy (with 0.03 mass% of strontium) was considered. The microstructures of the thixocast A356 alloy and the synthesized composite materials were examined by means of optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS) and X-ray diffraction (XRD). The fracture surfaces of the composite matrix and the composites were also analyzed. The thixocast A356 alloy and the composites were subjected to artificial aging after a solution heat treatment. Aging kinetics was followed by hardness measurements. Differential scanning calorimetry (DSC) was applied to reveal the presence of phases formed during artificial aging. The composites reached maximum hardness faster than the thixocast A356 alloy. The time required to attain peak hardness decreases with the increase in the content of particulate reinforcements. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing
T1  - Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles
VL  - 612
SP  - 7
EP  - 15
DO  - 10.1016/j.msea.2014.06.028
ER  - 

@article{
author = "Bobić, Ilija and Ružić, Jovana and Bobić, Biljana M. and Babić, Miroslav and Vencl, Aleksandar and Mitrovic, Slobodan",
year = "2014",
abstract = "Hybrid A356/SiCp/Gr(p) composites were produced via compo-casting using the A356 aluminum alloy as the composite matrix, with silicon carbide microparticles (SiCp) and graphite macroparticles (Gr(p)) as reinforcements. The effect of the thixocasting process on the microstructure of a modified A356 alloy (with 0.03 mass% of strontium) was considered. The microstructures of the thixocast A356 alloy and the synthesized composite materials were examined by means of optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS) and X-ray diffraction (XRD). The fracture surfaces of the composite matrix and the composites were also analyzed. The thixocast A356 alloy and the composites were subjected to artificial aging after a solution heat treatment. Aging kinetics was followed by hardness measurements. Differential scanning calorimetry (DSC) was applied to reveal the presence of phases formed during artificial aging. The composites reached maximum hardness faster than the thixocast A356 alloy. The time required to attain peak hardness decreases with the increase in the content of particulate reinforcements. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing",
title = "Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles",
volume = "612",
pages = "7-15",
doi = "10.1016/j.msea.2014.06.028"
}

Bobić, I., Ružić, J., Bobić, B. M., Babić, M., Vencl, A.,& Mitrovic, S.. (2014). Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles. in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 612, 7-15.
https://doi.org/10.1016/j.msea.2014.06.028

Bobić I, Ružić J, Bobić BM, Babić M, Vencl A, Mitrovic S. Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles. in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing. 2014;612:7-15.
doi:10.1016/j.msea.2014.06.028 .

Bobić, Ilija, Ružić, Jovana, Bobić, Biljana M., Babić, Miroslav, Vencl, Aleksandar, Mitrovic, Slobodan, "Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles" in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 612 (2014):7-15,
https://doi.org/10.1016/j.msea.2014.06.028 . .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Rajković, Višeslava M.
AU  - Živić, Fatima
AU  - Mitrovic, Slobodan
AU  - Cvijović-Alagić, Ivana
AU  - Jovanović, Milan T.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5566
AB  - Three copper-based alloys, i.e. two composites reinforced with Al2O3 particles and fabricated through PM route and Cu-Cr-Zr alloy processed by the vacuum melting and casting technique were the object of this investigation. Light microscope, scanning electron microscope (SEM) equipped with electron X-ray spectrometer (EDS) and transmission electron microscope (TEM) were used for microstructural characterization. The ball-on-disc nanotribometer served for wear and friction tests applying low sliding speeds (6, 8 and 10 mm/s) at constant load (1 N). The objective of the paper was to investigate the effect of different processing techniques on microstructure, thermal stability and the tribological characteristics of composites and copper ingot alloy. Nano-sized Al2O3 particles (less than 100 nm in size) are present not only in the copper matrix of Cu-2.5 wt.% Al composite, obtained by internal oxidation, but they are also formed at the grain boundaries preventing the grain growth and providing very small grain size. During the high temperature annealing (in the range 300-950 degrees C) composites behaved much better than the ingot alloy. The highest thermal stability showed Cu-2.5 wt.% Al composite. The pinning effect of nano-sized Al2O3 particles prevents the grain growth slowing down recrystallization of this composite up to 900 degrees C. Micro-sized Al2O3 particles in Cu-5 wt.% Al2O3 composite, processed by mechanical annealing, are not effective in preventing dislocation motion and the grain growth, whereas microstructure of Cu-0.4 wt.% Cr-0.08 wt.% Zr ingot alloy was completely recrystallized around 550 degrees C. Cu-2.5 wt.% Al composite showed the best wear resistance, approximately 2.5 times higher than that of Cu-5 wt.% Al2O3 composite. High hardness and nano-sized Al2O3 particles size combined with the fine-grain structure are the main parameters leading to the improved wear resistance of the Cu-2.5Al composite. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - The effect of processing techniques on microstructural and tribological properties of copper-based alloys
VL  - 280
SP  - 646
EP  - 654
DO  - 10.1016/j.apsusc.2013.05.039
ER  - 

@article{
author = "Vencl, Aleksandar and Rajković, Višeslava M. and Živić, Fatima and Mitrovic, Slobodan and Cvijović-Alagić, Ivana and Jovanović, Milan T.",
year = "2013",
abstract = "Three copper-based alloys, i.e. two composites reinforced with Al2O3 particles and fabricated through PM route and Cu-Cr-Zr alloy processed by the vacuum melting and casting technique were the object of this investigation. Light microscope, scanning electron microscope (SEM) equipped with electron X-ray spectrometer (EDS) and transmission electron microscope (TEM) were used for microstructural characterization. The ball-on-disc nanotribometer served for wear and friction tests applying low sliding speeds (6, 8 and 10 mm/s) at constant load (1 N). The objective of the paper was to investigate the effect of different processing techniques on microstructure, thermal stability and the tribological characteristics of composites and copper ingot alloy. Nano-sized Al2O3 particles (less than 100 nm in size) are present not only in the copper matrix of Cu-2.5 wt.% Al composite, obtained by internal oxidation, but they are also formed at the grain boundaries preventing the grain growth and providing very small grain size. During the high temperature annealing (in the range 300-950 degrees C) composites behaved much better than the ingot alloy. The highest thermal stability showed Cu-2.5 wt.% Al composite. The pinning effect of nano-sized Al2O3 particles prevents the grain growth slowing down recrystallization of this composite up to 900 degrees C. Micro-sized Al2O3 particles in Cu-5 wt.% Al2O3 composite, processed by mechanical annealing, are not effective in preventing dislocation motion and the grain growth, whereas microstructure of Cu-0.4 wt.% Cr-0.08 wt.% Zr ingot alloy was completely recrystallized around 550 degrees C. Cu-2.5 wt.% Al composite showed the best wear resistance, approximately 2.5 times higher than that of Cu-5 wt.% Al2O3 composite. High hardness and nano-sized Al2O3 particles size combined with the fine-grain structure are the main parameters leading to the improved wear resistance of the Cu-2.5Al composite. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "The effect of processing techniques on microstructural and tribological properties of copper-based alloys",
volume = "280",
pages = "646-654",
doi = "10.1016/j.apsusc.2013.05.039"
}

Vencl, A., Rajković, V. M., Živić, F., Mitrovic, S., Cvijović-Alagić, I.,& Jovanović, M. T.. (2013). The effect of processing techniques on microstructural and tribological properties of copper-based alloys. in Applied Surface Science, 280, 646-654.
https://doi.org/10.1016/j.apsusc.2013.05.039

Vencl A, Rajković VM, Živić F, Mitrovic S, Cvijović-Alagić I, Jovanović MT. The effect of processing techniques on microstructural and tribological properties of copper-based alloys. in Applied Surface Science. 2013;280:646-654.
doi:10.1016/j.apsusc.2013.05.039 .

Vencl, Aleksandar, Rajković, Višeslava M., Živić, Fatima, Mitrovic, Slobodan, Cvijović-Alagić, Ivana, Jovanović, Milan T., "The effect of processing techniques on microstructural and tribological properties of copper-based alloys" in Applied Surface Science, 280 (2013):646-654,
https://doi.org/10.1016/j.apsusc.2013.05.039 . .

TY  - JOUR
AU  - Bobić, Ilija
AU  - Babić, Miroslav
AU  - Vencl, Aleksandar
AU  - Bobić, Biljana M.
AU  - Mitrovic, Slobodan
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5727
AB  - Thixocast ZA27 alloy and particulate ZA27/SiCp composites were subjected to artificial aging at 80, 120 and 160 degrees C (T5 regime). Composites with 5 and 10 vol.% SiC particles were produced via the compocasting method. The influence of the aging was investigated using different techniques. Differential scanning calorimetry was performed to reveal the presence of phases created in the thixocast ZA27 alloy and the composites. Microstructures and fracture behavior were examined by means of optical microscopy, scanning electron microscopy and X-ray diffraction. Aging processes in the matrix alloy and composites were followed using hardness measurements. A decrease in the hardness values was noticed with the increase in the aging temperature. At higher temperatures diffusion of zinc atoms from supersaturated phases in the matrix alloy was enhanced, which resulted in faster changes in the hardness. Aging processes in the composites were significantly accelerated compared to the matrix alloy, due to the presence of particulate reinforcements. The maximum in hardness was achieved for shorter time in the ZA27/SiCp composite with higher volume fraction of SiC particles.
T2  - International Journal of Materials Research
T1  - Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites
VL  - 104
IS  - 10
SP  - 954
EP  - 965
DO  - 10.3139/146.110958
ER  - 

@article{
author = "Bobić, Ilija and Babić, Miroslav and Vencl, Aleksandar and Bobić, Biljana M. and Mitrovic, Slobodan",
year = "2013",
abstract = "Thixocast ZA27 alloy and particulate ZA27/SiCp composites were subjected to artificial aging at 80, 120 and 160 degrees C (T5 regime). Composites with 5 and 10 vol.% SiC particles were produced via the compocasting method. The influence of the aging was investigated using different techniques. Differential scanning calorimetry was performed to reveal the presence of phases created in the thixocast ZA27 alloy and the composites. Microstructures and fracture behavior were examined by means of optical microscopy, scanning electron microscopy and X-ray diffraction. Aging processes in the matrix alloy and composites were followed using hardness measurements. A decrease in the hardness values was noticed with the increase in the aging temperature. At higher temperatures diffusion of zinc atoms from supersaturated phases in the matrix alloy was enhanced, which resulted in faster changes in the hardness. Aging processes in the composites were significantly accelerated compared to the matrix alloy, due to the presence of particulate reinforcements. The maximum in hardness was achieved for shorter time in the ZA27/SiCp composite with higher volume fraction of SiC particles.",
journal = "International Journal of Materials Research",
title = "Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites",
volume = "104",
number = "10",
pages = "954-965",
doi = "10.3139/146.110958"
}

Bobić, I., Babić, M., Vencl, A., Bobić, B. M.,& Mitrovic, S.. (2013). Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites. in International Journal of Materials Research, 104(10), 954-965.
https://doi.org/10.3139/146.110958

Bobić I, Babić M, Vencl A, Bobić BM, Mitrovic S. Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites. in International Journal of Materials Research. 2013;104(10):954-965.
doi:10.3139/146.110958 .

Bobić, Ilija, Babić, Miroslav, Vencl, Aleksandar, Bobić, Biljana M., Mitrovic, Slobodan, "Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites" in International Journal of Materials Research, 104, no. 10 (2013):954-965,
https://doi.org/10.3139/146.110958 . .

TY  - JOUR
AU  - Mitrovic, S.
AU  - Babic, M.
AU  - Zivic, F.
AU  - Bobić, Ilija
AU  - Erić, Milić D.
AU  - Dzunic, D.
AU  - Pantic, M.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5274
AB  - The lubricated and dry sliding wear behaviour of ZA-27 alloy composites reinforced with Al2O3 particles of size 250 mu m was evaluated. The content of Al2O3 particles in the alloy was 3, 5 and 10 wt.%. Composites were produced by the compocasting process using mechanical mixing of the matrix, i.e. Al2O3 particles as reinforcement were added into the semi-solid ZA-27 alloy by infiltration and admixing. A block-on-disc wear test device was used to evaluate the wear rate, whereat 30CrNiMo8 steel disc was used as the counterface, under dry and lubricated sliding conditions at different specific loads and sliding speeds. Results indicated that the wear rates of the composites were lower than those of the matrix alloy and further decreased with the increase in Al2O3 particles content in all combinations of applied loads and sliding speeds both in dry and lubricated tests.
T2  - Journal of the Balkan Tribological Association
T1  - Influence of Al2o3 Particle Content on the Sliding Wear Behaviour of Za-27 Alloy Composites
VL  - 18
IS  - 4
SP  - 548
EP  - 558
UR  - https://hdl.handle.net/21.15107/rcub_vinar_5274
ER  - 

@article{
author = "Mitrovic, S. and Babic, M. and Zivic, F. and Bobić, Ilija and Erić, Milić D. and Dzunic, D. and Pantic, M.",
year = "2012",
abstract = "The lubricated and dry sliding wear behaviour of ZA-27 alloy composites reinforced with Al2O3 particles of size 250 mu m was evaluated. The content of Al2O3 particles in the alloy was 3, 5 and 10 wt.%. Composites were produced by the compocasting process using mechanical mixing of the matrix, i.e. Al2O3 particles as reinforcement were added into the semi-solid ZA-27 alloy by infiltration and admixing. A block-on-disc wear test device was used to evaluate the wear rate, whereat 30CrNiMo8 steel disc was used as the counterface, under dry and lubricated sliding conditions at different specific loads and sliding speeds. Results indicated that the wear rates of the composites were lower than those of the matrix alloy and further decreased with the increase in Al2O3 particles content in all combinations of applied loads and sliding speeds both in dry and lubricated tests.",
journal = "Journal of the Balkan Tribological Association",
title = "Influence of Al2o3 Particle Content on the Sliding Wear Behaviour of Za-27 Alloy Composites",
volume = "18",
number = "4",
pages = "548-558",
url = "https://hdl.handle.net/21.15107/rcub_vinar_5274"
}

Mitrovic, S., Babic, M., Zivic, F., Bobić, I., Erić, M. D., Dzunic, D.,& Pantic, M.. (2012). Influence of Al2o3 Particle Content on the Sliding Wear Behaviour of Za-27 Alloy Composites. in Journal of the Balkan Tribological Association, 18(4), 548-558.
https://hdl.handle.net/21.15107/rcub_vinar_5274

Mitrovic S, Babic M, Zivic F, Bobić I, Erić MD, Dzunic D, Pantic M. Influence of Al2o3 Particle Content on the Sliding Wear Behaviour of Za-27 Alloy Composites. in Journal of the Balkan Tribological Association. 2012;18(4):548-558.
https://hdl.handle.net/21.15107/rcub_vinar_5274 .

Mitrovic, S., Babic, M., Zivic, F., Bobić, Ilija, Erić, Milić D., Dzunic, D., Pantic, M., "Influence of Al2o3 Particle Content on the Sliding Wear Behaviour of Za-27 Alloy Composites" in Journal of the Balkan Tribological Association, 18, no. 4 (2012):548-558,
https://hdl.handle.net/21.15107/rcub_vinar_5274 .

TY  - JOUR
AU  - Cvijović-Alagić, Ivana
AU  - Cvijović, Zorica M.
AU  - Mitrovic, S.
AU  - Panić, Vladimir
AU  - Rakin, Marko P.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4216
AB  - Wear and corrosion behaviour of cold-rolled Ti-13Nb-13Zr alloy, with martensitic microstructure, and Ti-6Al-4V ELI alloy, in martensitic and two-phase (alpha + beta) microstructural conditions, was studied in a Ringers solution. The wear experiments were performed at room temperature with a normal load of 40 N and sliding speeds 0.26. 0.5 and 1.0 m/s. The corrosion behaviour was studied at 37 degrees C using open circuit potential-time measurements and potentiodynamic polarization. It was found that Ti-13Nb-13Zr alloy has a substantially lower wear resistance than Ti-6Al-4V ELI alloy in both microstructural conditions. Surface damage extent increases with sliding speed increase and is always smallest for martensitic Ti-6Al-4V ELI alloy with highest hardness. Both alloys exhibit spontaneous passivity in Ringers solution. Corrosion potential values are similar for all three materials. However, Ti-13Nb-13Zr and martensitic Ti-6Al-4V ELI alloys show improved corrosion resistance comparatively to Ti-6Al-4V ELI alloy with (alpha + beta) microstructure. Martensitic Ti-6Al-4V ELI alloy possesses the best combination of both corrosion and wear resistance, although its corrosion resistance is found to be slightly higher than that of the Ti-13Nb-13Zr alloy. (C) 2010 Elsevier Ltd. All rights reserved.
T2  - Corrosion Science
T1  - Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution
VL  - 53
IS  - 2
SP  - 796
EP  - 808
DO  - 10.1016/j.corsci.2010.11.014
ER  - 

@article{
author = "Cvijović-Alagić, Ivana and Cvijović, Zorica M. and Mitrovic, S. and Panić, Vladimir and Rakin, Marko P.",
year = "2011",
abstract = "Wear and corrosion behaviour of cold-rolled Ti-13Nb-13Zr alloy, with martensitic microstructure, and Ti-6Al-4V ELI alloy, in martensitic and two-phase (alpha + beta) microstructural conditions, was studied in a Ringers solution. The wear experiments were performed at room temperature with a normal load of 40 N and sliding speeds 0.26. 0.5 and 1.0 m/s. The corrosion behaviour was studied at 37 degrees C using open circuit potential-time measurements and potentiodynamic polarization. It was found that Ti-13Nb-13Zr alloy has a substantially lower wear resistance than Ti-6Al-4V ELI alloy in both microstructural conditions. Surface damage extent increases with sliding speed increase and is always smallest for martensitic Ti-6Al-4V ELI alloy with highest hardness. Both alloys exhibit spontaneous passivity in Ringers solution. Corrosion potential values are similar for all three materials. However, Ti-13Nb-13Zr and martensitic Ti-6Al-4V ELI alloys show improved corrosion resistance comparatively to Ti-6Al-4V ELI alloy with (alpha + beta) microstructure. Martensitic Ti-6Al-4V ELI alloy possesses the best combination of both corrosion and wear resistance, although its corrosion resistance is found to be slightly higher than that of the Ti-13Nb-13Zr alloy. (C) 2010 Elsevier Ltd. All rights reserved.",
journal = "Corrosion Science",
title = "Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution",
volume = "53",
number = "2",
pages = "796-808",
doi = "10.1016/j.corsci.2010.11.014"
}

Cvijović-Alagić, I., Cvijović, Z. M., Mitrovic, S., Panić, V.,& Rakin, M. P.. (2011). Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution. in Corrosion Science, 53(2), 796-808.
https://doi.org/10.1016/j.corsci.2010.11.014

Cvijović-Alagić I, Cvijović ZM, Mitrovic S, Panić V, Rakin MP. Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution. in Corrosion Science. 2011;53(2):796-808.
doi:10.1016/j.corsci.2010.11.014 .

Cvijović-Alagić, Ivana, Cvijović, Zorica M., Mitrovic, S., Panić, Vladimir, Rakin, Marko P., "Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution" in Corrosion Science, 53, no. 2 (2011):796-808,
https://doi.org/10.1016/j.corsci.2010.11.014 . .

TY  - JOUR
AU  - Bobić, Biljana M.
AU  - Babić, Miroslav
AU  - Mitrovic, Slobodan
AU  - Ilić, Nenad
AU  - Bobić, Ilija
AU  - Jovanović, Milan T.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4183
AB  - Microstructures and compressive properties of Zn25Al3Cu alloy and Zn25Al3Cu/Al2O3 particulate composites with large reinforcing particles (250 mu m) were examined. The composites were obtained by the compocasting technique through infiltration of 3, 8 and 16 wt.% Al2O3 particles into the semi-solid metal matrix. The influence of temperature in the range from 70 to 170 degrees C on compressive yield strength of the matrix alloy (as-cast and thixocast Zn25Al3Cu alloy) and the composites was investigated. Above 70 degrees C compressive yield strength of all materials decreases, but the rate of decrease is different for the matrix alloy (as-cast and thixocast) and composites. It was found that the abrupt decrease in compressive yield strength of the matrix alloy occurred at temperatures higher than 70 degrees C, whereas composites retained relatively high values of compressive yield strength till the end of the testing temperature range regardless of the amount of reinforcing particles.
T2  - International Journal of Materials Research
T1  - Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures
VL  - 101
IS  - 12
SP  - 1524
EP  - 1531
DO  - 10.3139/146.110425
ER  - 

@article{
author = "Bobić, Biljana M. and Babić, Miroslav and Mitrovic, Slobodan and Ilić, Nenad and Bobić, Ilija and Jovanović, Milan T.",
year = "2010",
abstract = "Microstructures and compressive properties of Zn25Al3Cu alloy and Zn25Al3Cu/Al2O3 particulate composites with large reinforcing particles (250 mu m) were examined. The composites were obtained by the compocasting technique through infiltration of 3, 8 and 16 wt.% Al2O3 particles into the semi-solid metal matrix. The influence of temperature in the range from 70 to 170 degrees C on compressive yield strength of the matrix alloy (as-cast and thixocast Zn25Al3Cu alloy) and the composites was investigated. Above 70 degrees C compressive yield strength of all materials decreases, but the rate of decrease is different for the matrix alloy (as-cast and thixocast) and composites. It was found that the abrupt decrease in compressive yield strength of the matrix alloy occurred at temperatures higher than 70 degrees C, whereas composites retained relatively high values of compressive yield strength till the end of the testing temperature range regardless of the amount of reinforcing particles.",
journal = "International Journal of Materials Research",
title = "Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures",
volume = "101",
number = "12",
pages = "1524-1531",
doi = "10.3139/146.110425"
}

Bobić, B. M., Babić, M., Mitrovic, S., Ilić, N., Bobić, I.,& Jovanović, M. T.. (2010). Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures. in International Journal of Materials Research, 101(12), 1524-1531.
https://doi.org/10.3139/146.110425

Bobić BM, Babić M, Mitrovic S, Ilić N, Bobić I, Jovanović MT. Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures. in International Journal of Materials Research. 2010;101(12):1524-1531.
doi:10.3139/146.110425 .

Bobić, Biljana M., Babić, Miroslav, Mitrovic, Slobodan, Ilić, Nenad, Bobić, Ilija, Jovanović, Milan T., "Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures" in International Journal of Materials Research, 101, no. 12 (2010):1524-1531,
https://doi.org/10.3139/146.110425 . .

TY  - JOUR
AU  - Cvijović-Alagić, Ivana
AU  - Cvijović, Zorica M.
AU  - Mitrovic, S.
AU  - Rakin, Marko P.
AU  - Veljović, Đorđe N.
AU  - Babic, M.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4105
AB  - The aim of this study is to compare the tribological behaviour of novel orthopaedic implant alloy Ti-13Nb-13Zr with that of the standard Ti-6Al-4V ELI alloy, available in four different microstructural conditions produced by variations in the heat treatments. The friction and wear tests were performed by using a block-on-disc tribometer in Ringers solution at ambient temperature with a normal load of 20-60 N and sliding speed of 0.26-1.0 m/s. It was found that variations in microstructures produced significant variations in the wear resistance of Ti-6Al-4V ELI alloy. The wear losses of materials solution treated (ST) above the beta transus temperature are significantly lower compared with those of materials ST in the (alpha + beta) phase field and are almost insensitive to applied load and sliding speed. Wear loss of the (alpha + beta) ST Ti-6Al-4V ELI alloy continuously increased as applied load was increased and was highest at the highest sliding speed. The Ti-6Al-4V ELI alloy in all microstructural conditions possesses a much better wear resistance than cold-rolled Ti-13Nb-13Zr alloy. Friction results and morphology of worn surfaces showed that the observed behaviour is attributed to the predominant wear damage mechanism.
T2  - Tribology Letters
T1  - Tribological Behaviour of Orthopaedic Ti-13Nb-13Zr and Ti-6Al-4V Alloys
VL  - 40
IS  - 1
SP  - 59
EP  - 70
DO  - 10.1007/s11249-010-9639-8
ER  - 

@article{
author = "Cvijović-Alagić, Ivana and Cvijović, Zorica M. and Mitrovic, S. and Rakin, Marko P. and Veljović, Đorđe N. and Babic, M.",
year = "2010",
abstract = "The aim of this study is to compare the tribological behaviour of novel orthopaedic implant alloy Ti-13Nb-13Zr with that of the standard Ti-6Al-4V ELI alloy, available in four different microstructural conditions produced by variations in the heat treatments. The friction and wear tests were performed by using a block-on-disc tribometer in Ringers solution at ambient temperature with a normal load of 20-60 N and sliding speed of 0.26-1.0 m/s. It was found that variations in microstructures produced significant variations in the wear resistance of Ti-6Al-4V ELI alloy. The wear losses of materials solution treated (ST) above the beta transus temperature are significantly lower compared with those of materials ST in the (alpha + beta) phase field and are almost insensitive to applied load and sliding speed. Wear loss of the (alpha + beta) ST Ti-6Al-4V ELI alloy continuously increased as applied load was increased and was highest at the highest sliding speed. The Ti-6Al-4V ELI alloy in all microstructural conditions possesses a much better wear resistance than cold-rolled Ti-13Nb-13Zr alloy. Friction results and morphology of worn surfaces showed that the observed behaviour is attributed to the predominant wear damage mechanism.",
journal = "Tribology Letters",
title = "Tribological Behaviour of Orthopaedic Ti-13Nb-13Zr and Ti-6Al-4V Alloys",
volume = "40",
number = "1",
pages = "59-70",
doi = "10.1007/s11249-010-9639-8"
}

Cvijović-Alagić, I., Cvijović, Z. M., Mitrovic, S., Rakin, M. P., Veljović, Đ. N.,& Babic, M.. (2010). Tribological Behaviour of Orthopaedic Ti-13Nb-13Zr and Ti-6Al-4V Alloys. in Tribology Letters, 40(1), 59-70.
https://doi.org/10.1007/s11249-010-9639-8

Cvijović-Alagić I, Cvijović ZM, Mitrovic S, Rakin MP, Veljović ĐN, Babic M. Tribological Behaviour of Orthopaedic Ti-13Nb-13Zr and Ti-6Al-4V Alloys. in Tribology Letters. 2010;40(1):59-70.
doi:10.1007/s11249-010-9639-8 .

Cvijović-Alagić, Ivana, Cvijović, Zorica M., Mitrovic, S., Rakin, Marko P., Veljović, Đorđe N., Babic, M., "Tribological Behaviour of Orthopaedic Ti-13Nb-13Zr and Ti-6Al-4V Alloys" in Tribology Letters, 40, no. 1 (2010):59-70,
https://doi.org/10.1007/s11249-010-9639-8 . .

TY  - JOUR
AU  - Babić, Miroslav
AU  - Mitrovic, Slobodan
AU  - Živić, Fatima
AU  - Bobić, Ilija
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4012
AB  - In present study, the effect of Al2O3 particle reinforcement on the sliding behavior of ZA-27 alloy composites was investigated. The composites with 3, 5, and 10 wt% of Al2O3 particles were produced by the compocasting procedure. Tribological properties of unreinforced alloy and composite were studied, using block-on-disk tribometer under unlubricated sliding conditions at different specific loads and sliding speeds. The worn surfaces of samples were examined by the scanning electron microscopy (SEM). The test results revealed that those composite specimens exhibited significantly lower wear rate than the ZA-27 matrix alloy specimens in all combinations of applied loads and sliding speeds. The difference in the wear resistance of composite with respect to the matrix alloy, increased with the increase of the applied load/sliding speed and Al2O3 particle content. The highest degree of improvement of the ZA-27 alloy tribological behavior corresponded with change of the Al2O3 particles content from 3 to 5 wt%. At low sliding speed, moderate lower wear rate of the composites over that of the matrix alloy was noticed. This has been attributed to micro cracking tendency of the composites. Significantly reduced wear rate, experienced by the composite over that of the matrix alloy at the higher sliding speeds and loads, could be explained due to enhanced compatibility of matrix alloy with dispersoid phase and greater thermal stability of the composite in view of the presence of the dispersoid. Level of wear rate of tested ZA-27/Al2O3 samples pointed to the process of mild wear, which was primarily controlled by the formation and destruction of mechanical mixed layers (MMLs).
T2  - Tribology Letters
T1  - Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition
VL  - 38
IS  - 3
SP  - 337
EP  - 346
DO  - 10.1007/s11249-010-9613-5
ER  - 

@article{
author = "Babić, Miroslav and Mitrovic, Slobodan and Živić, Fatima and Bobić, Ilija",
year = "2010",
abstract = "In present study, the effect of Al2O3 particle reinforcement on the sliding behavior of ZA-27 alloy composites was investigated. The composites with 3, 5, and 10 wt% of Al2O3 particles were produced by the compocasting procedure. Tribological properties of unreinforced alloy and composite were studied, using block-on-disk tribometer under unlubricated sliding conditions at different specific loads and sliding speeds. The worn surfaces of samples were examined by the scanning electron microscopy (SEM). The test results revealed that those composite specimens exhibited significantly lower wear rate than the ZA-27 matrix alloy specimens in all combinations of applied loads and sliding speeds. The difference in the wear resistance of composite with respect to the matrix alloy, increased with the increase of the applied load/sliding speed and Al2O3 particle content. The highest degree of improvement of the ZA-27 alloy tribological behavior corresponded with change of the Al2O3 particles content from 3 to 5 wt%. At low sliding speed, moderate lower wear rate of the composites over that of the matrix alloy was noticed. This has been attributed to micro cracking tendency of the composites. Significantly reduced wear rate, experienced by the composite over that of the matrix alloy at the higher sliding speeds and loads, could be explained due to enhanced compatibility of matrix alloy with dispersoid phase and greater thermal stability of the composite in view of the presence of the dispersoid. Level of wear rate of tested ZA-27/Al2O3 samples pointed to the process of mild wear, which was primarily controlled by the formation and destruction of mechanical mixed layers (MMLs).",
journal = "Tribology Letters",
title = "Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition",
volume = "38",
number = "3",
pages = "337-346",
doi = "10.1007/s11249-010-9613-5"
}

Babić, M., Mitrovic, S., Živić, F.,& Bobić, I.. (2010). Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition. in Tribology Letters, 38(3), 337-346.
https://doi.org/10.1007/s11249-010-9613-5

Babić M, Mitrovic S, Živić F, Bobić I. Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition. in Tribology Letters. 2010;38(3):337-346.
doi:10.1007/s11249-010-9613-5 .

Babić, Miroslav, Mitrovic, Slobodan, Živić, Fatima, Bobić, Ilija, "Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition" in Tribology Letters, 38, no. 3 (2010):337-346,
https://doi.org/10.1007/s11249-010-9613-5 . .

TY  - JOUR
AU  - Babić, Miroslav
AU  - Vencl, Aleksandar
AU  - Mitrovic, Slobodan
AU  - Bobić, Ilija
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3795
AB  - The effects of heat treatment on the microstructure, hardness, tensile properties, and tribological behavior of ZA27 alloy were examined. The alloys were prepared by conventional melting and casting route. The heat treatment of samples included the heating up to 370 A degrees C for 3 or 5 h, quenching in water, and natural aging. Lubricated sliding wear test were conducted on as-cast and heat-treated ZA27 samples using block-on-disc machine. The friction and wear behavior of alloys were tested in contact with steel discs using combinations of three levels of load (10, 30, and 50 N) and three levels of linear sliding speeds (0.26, 0.50, and 1.00 m/s). To determine the wear mechanisms, the worn surfaces of the samples were examined by scanning electron microscopy (SEM). The heat treatment resulted in reduction in the hardness and tensile strength but increase in elongation. The heat-treated alloy samples attained improved tribological behavior over the as-cast ones, under all combinations of sliding speeds and contact loads. The rate of improvement increased with duration of solutionizing process before quenching in water. Obtained tribological results were related to the effects of heat treatment on microstructure changes of alloy.
T2  - Tribology Letters
T1  - Influence of T4 Heat Treatment on Tribological Behavior of Za27 Alloy Under Lubricated Sliding Condition
VL  - 36
IS  - 2
SP  - 125
EP  - 134
DO  - 10.1007/s11249-009-9467-x
ER  - 

@article{
author = "Babić, Miroslav and Vencl, Aleksandar and Mitrovic, Slobodan and Bobić, Ilija",
year = "2009",
abstract = "The effects of heat treatment on the microstructure, hardness, tensile properties, and tribological behavior of ZA27 alloy were examined. The alloys were prepared by conventional melting and casting route. The heat treatment of samples included the heating up to 370 A degrees C for 3 or 5 h, quenching in water, and natural aging. Lubricated sliding wear test were conducted on as-cast and heat-treated ZA27 samples using block-on-disc machine. The friction and wear behavior of alloys were tested in contact with steel discs using combinations of three levels of load (10, 30, and 50 N) and three levels of linear sliding speeds (0.26, 0.50, and 1.00 m/s). To determine the wear mechanisms, the worn surfaces of the samples were examined by scanning electron microscopy (SEM). The heat treatment resulted in reduction in the hardness and tensile strength but increase in elongation. The heat-treated alloy samples attained improved tribological behavior over the as-cast ones, under all combinations of sliding speeds and contact loads. The rate of improvement increased with duration of solutionizing process before quenching in water. Obtained tribological results were related to the effects of heat treatment on microstructure changes of alloy.",
journal = "Tribology Letters",
title = "Influence of T4 Heat Treatment on Tribological Behavior of Za27 Alloy Under Lubricated Sliding Condition",
volume = "36",
number = "2",
pages = "125-134",
doi = "10.1007/s11249-009-9467-x"
}

Babić, M., Vencl, A., Mitrovic, S.,& Bobić, I.. (2009). Influence of T4 Heat Treatment on Tribological Behavior of Za27 Alloy Under Lubricated Sliding Condition. in Tribology Letters, 36(2), 125-134.
https://doi.org/10.1007/s11249-009-9467-x

Babić M, Vencl A, Mitrovic S, Bobić I. Influence of T4 Heat Treatment on Tribological Behavior of Za27 Alloy Under Lubricated Sliding Condition. in Tribology Letters. 2009;36(2):125-134.
doi:10.1007/s11249-009-9467-x .

Babić, Miroslav, Vencl, Aleksandar, Mitrovic, Slobodan, Bobić, Ilija, "Influence of T4 Heat Treatment on Tribological Behavior of Za27 Alloy Under Lubricated Sliding Condition" in Tribology Letters, 36, no. 2 (2009):125-134,
https://doi.org/10.1007/s11249-009-9467-x . .