TY  - JOUR
AU  - Sekulić, Zorana
AU  - Grbović Novaković, Jasmina
AU  - Babić, Bojana
AU  - Prvulović, Milica
AU  - Milanović, Igor
AU  - Novaković, Nikola
AU  - Rajnović, Dragan
AU  - Filipović, Nenad
AU  - Asanović, Vanja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11436
AB  - The effects of catalysis using vanadium as an additive (2 and 5 wt.%) in a high-energy ball mill on composite desorption properties were examined. The influence of microstructure on the dehydration temperature and hydrogen desorption kinetics was monitored. Morphological and microstructural studies of the synthesized sample were performed by X-ray diffraction (XRD), laser particle size distribution (PSD), and scanning electron microscopy (SEM) methods, while differential scanning calorimetry (DSC) determined thermal properties. To further access amorph species in the milling blend, the absorption spectra were obtained by FTIR-ATR analysis (Fourier transform infrared spectroscopy attenuated total reflection). The results show lower apparent activation energy (Eapp) and H2 desorption temperature are obtained for milling bland with 5 wt.% added vanadium. The best explanation of hydrogen desorption reaction shows the Avrami-Erofeev model for parameter n = 4. Since the obtained value of apparent activation energy is close to the Mg-H bond-breaking energy, one can conclude that breaking this bond would be the rate-limiting step of the process.
T2  - Materials
T1  - The Catalytic Effect of Vanadium on Sorption Properties of MgH2-Based Nanocomposites Obtained Using Low Milling Time
VL  - 16
IS  - 15
SP  - 5480
DO  - 10.3390/ma16155480
ER  - 

@article{
author = "Sekulić, Zorana and Grbović Novaković, Jasmina and Babić, Bojana and Prvulović, Milica and Milanović, Igor and Novaković, Nikola and Rajnović, Dragan and Filipović, Nenad and Asanović, Vanja",
year = "2023",
abstract = "The effects of catalysis using vanadium as an additive (2 and 5 wt.%) in a high-energy ball mill on composite desorption properties were examined. The influence of microstructure on the dehydration temperature and hydrogen desorption kinetics was monitored. Morphological and microstructural studies of the synthesized sample were performed by X-ray diffraction (XRD), laser particle size distribution (PSD), and scanning electron microscopy (SEM) methods, while differential scanning calorimetry (DSC) determined thermal properties. To further access amorph species in the milling blend, the absorption spectra were obtained by FTIR-ATR analysis (Fourier transform infrared spectroscopy attenuated total reflection). The results show lower apparent activation energy (Eapp) and H2 desorption temperature are obtained for milling bland with 5 wt.% added vanadium. The best explanation of hydrogen desorption reaction shows the Avrami-Erofeev model for parameter n = 4. Since the obtained value of apparent activation energy is close to the Mg-H bond-breaking energy, one can conclude that breaking this bond would be the rate-limiting step of the process.",
journal = "Materials",
title = "The Catalytic Effect of Vanadium on Sorption Properties of MgH2-Based Nanocomposites Obtained Using Low Milling Time",
volume = "16",
number = "15",
pages = "5480",
doi = "10.3390/ma16155480"
}

Sekulić, Z., Grbović Novaković, J., Babić, B., Prvulović, M., Milanović, I., Novaković, N., Rajnović, D., Filipović, N.,& Asanović, V.. (2023). The Catalytic Effect of Vanadium on Sorption Properties of MgH2-Based Nanocomposites Obtained Using Low Milling Time. in Materials, 16(15), 5480.
https://doi.org/10.3390/ma16155480

Sekulić Z, Grbović Novaković J, Babić B, Prvulović M, Milanović I, Novaković N, Rajnović D, Filipović N, Asanović V. The Catalytic Effect of Vanadium on Sorption Properties of MgH2-Based Nanocomposites Obtained Using Low Milling Time. in Materials. 2023;16(15):5480.
doi:10.3390/ma16155480 .

Sekulić, Zorana, Grbović Novaković, Jasmina, Babić, Bojana, Prvulović, Milica, Milanović, Igor, Novaković, Nikola, Rajnović, Dragan, Filipović, Nenad, Asanović, Vanja, "The Catalytic Effect of Vanadium on Sorption Properties of MgH2-Based Nanocomposites Obtained Using Low Milling Time" in Materials, 16, no. 15 (2023):5480,
https://doi.org/10.3390/ma16155480 . .

TY  - JOUR
AU  - Milanović, Igor
AU  - Milošević Govedarović, Sanja S.
AU  - Kurko, Sandra V.
AU  - Medić-Ilić, Mirjana
AU  - Rajnović, Dragan
AU  - Cvetković, Slobodan M.
AU  - Grbović-Novaković, Jasmina
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10398
AB  - MgH2 based composites combined with NaNH2 were synthesized by mechanical milling for three different milling times ranging from 15 to 60 minutes. Microstructure and particle size of the samples were analyzed by SEM microscopy while desorption properties were followed by Thermal Desorption Spectroscopy (TDS). The kinetic properties of NaNH2-MgH2 composites were investigated by isoconversional kinetic method as implemented in code developed by our group. Composites show hydrogen desorption peaks shifted to lower temperatures in comparison to mechanically modified and as received MgH2. All NaNH2-MgH2 composites show enhanced kinetics with lowered apparent activation energy (Ea) in comparison to milled MgH2. The mechanism of desorption changes from Avrami–Erofeev n = 3 for as received MgH2 to Avrami–Erofeev n = 4 for composite materials. The change from 3 to 4 can be due to the modification of the nucleation process or a change in the dimensionality of the growth. Those high values of n disregard a diffusion control as a rate limiting step. It has been shown that there is a synergistic effect on the enhanced hydrogen storage performance of chemical reaction and structural changes caused by ball milling. This can be used as a starting point for synthesis of innovative hydrogen storage materials.
T2  - International Journal of Hydrogen Energy
T1  - Improving of hydrogen desorption kinetics of MgH2 by NaNH2 addition: Interplay between microstructure and chemical reaction
VL  - 47
IS  - 69
SP  - 29858
EP  - 29865
DO  - 10.1016/j.ijhydene.2022.06.302
ER  - 

@article{
author = "Milanović, Igor and Milošević Govedarović, Sanja S. and Kurko, Sandra V. and Medić-Ilić, Mirjana and Rajnović, Dragan and Cvetković, Slobodan M. and Grbović-Novaković, Jasmina",
year = "2022",
abstract = "MgH2 based composites combined with NaNH2 were synthesized by mechanical milling for three different milling times ranging from 15 to 60 minutes. Microstructure and particle size of the samples were analyzed by SEM microscopy while desorption properties were followed by Thermal Desorption Spectroscopy (TDS). The kinetic properties of NaNH2-MgH2 composites were investigated by isoconversional kinetic method as implemented in code developed by our group. Composites show hydrogen desorption peaks shifted to lower temperatures in comparison to mechanically modified and as received MgH2. All NaNH2-MgH2 composites show enhanced kinetics with lowered apparent activation energy (Ea) in comparison to milled MgH2. The mechanism of desorption changes from Avrami–Erofeev n = 3 for as received MgH2 to Avrami–Erofeev n = 4 for composite materials. The change from 3 to 4 can be due to the modification of the nucleation process or a change in the dimensionality of the growth. Those high values of n disregard a diffusion control as a rate limiting step. It has been shown that there is a synergistic effect on the enhanced hydrogen storage performance of chemical reaction and structural changes caused by ball milling. This can be used as a starting point for synthesis of innovative hydrogen storage materials.",
journal = "International Journal of Hydrogen Energy",
title = "Improving of hydrogen desorption kinetics of MgH2 by NaNH2 addition: Interplay between microstructure and chemical reaction",
volume = "47",
number = "69",
pages = "29858-29865",
doi = "10.1016/j.ijhydene.2022.06.302"
}

Milanović, I., Milošević Govedarović, S. S., Kurko, S. V., Medić-Ilić, M., Rajnović, D., Cvetković, S. M.,& Grbović-Novaković, J.. (2022). Improving of hydrogen desorption kinetics of MgH2 by NaNH2 addition: Interplay between microstructure and chemical reaction. in International Journal of Hydrogen Energy, 47(69), 29858-29865.
https://doi.org/10.1016/j.ijhydene.2022.06.302

Milanović I, Milošević Govedarović SS, Kurko SV, Medić-Ilić M, Rajnović D, Cvetković SM, Grbović-Novaković J. Improving of hydrogen desorption kinetics of MgH2 by NaNH2 addition: Interplay between microstructure and chemical reaction. in International Journal of Hydrogen Energy. 2022;47(69):29858-29865.
doi:10.1016/j.ijhydene.2022.06.302 .

Milanović, Igor, Milošević Govedarović, Sanja S., Kurko, Sandra V., Medić-Ilić, Mirjana, Rajnović, Dragan, Cvetković, Slobodan M., Grbović-Novaković, Jasmina, "Improving of hydrogen desorption kinetics of MgH2 by NaNH2 addition: Interplay between microstructure and chemical reaction" in International Journal of Hydrogen Energy, 47, no. 69 (2022):29858-29865,
https://doi.org/10.1016/j.ijhydene.2022.06.302 . .

TY  - JOUR
AU  - Janjatović, Petar
AU  - Erić-Cekić, Olivera
AU  - Siđanin, Leposava
AU  - Balos, Sebastian
AU  - Dramićanin, Miroslav R.
AU  - Grbović-Novaković, Jasmina
AU  - Rajnović, Dragan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9179
AB  - Austempered ductile iron (ADI) is an advanced cast iron material that has a broad field of application and, among others, it is used in contact and for conveyance of fluids. However, it is noticed that in contact with some fluids, especially water, ADI material becomes brittle. The most significant decrease is established for the elongation. However, the influence of water and the cause of this phenomenon is still not fully understood. For that reason, in this paper, the influence of different water concentrations in ethyl alcohol on the mechanical properties of ADI materials was studied. The test was performed on two different types of ADI materials in 0.2, 4, 10, and 100 vol.% water concentration environments, and in dry condition. It was found that even the smallest concentration of water (0.2 vol.%) causes formation of the embrittled zone at fracture surface. However, not all mechanical properties were affected equally and not all water concentrations have been critical. The highest deterioration was established in the elongation, followed by the ultimate tensile strength, while the proof strength was affected least.
T2  - Metals
T1  - The Effect of Water Concentration in Ethyl Alcohol on the Environmentally Assisted Embrittlement of Austempered Ductile Irons
VL  - 11
IS  - 1
SP  - 94
DO  - 10.3390/met11010094
ER  - 

@article{
author = "Janjatović, Petar and Erić-Cekić, Olivera and Siđanin, Leposava and Balos, Sebastian and Dramićanin, Miroslav R. and Grbović-Novaković, Jasmina and Rajnović, Dragan",
year = "2021",
abstract = "Austempered ductile iron (ADI) is an advanced cast iron material that has a broad field of application and, among others, it is used in contact and for conveyance of fluids. However, it is noticed that in contact with some fluids, especially water, ADI material becomes brittle. The most significant decrease is established for the elongation. However, the influence of water and the cause of this phenomenon is still not fully understood. For that reason, in this paper, the influence of different water concentrations in ethyl alcohol on the mechanical properties of ADI materials was studied. The test was performed on two different types of ADI materials in 0.2, 4, 10, and 100 vol.% water concentration environments, and in dry condition. It was found that even the smallest concentration of water (0.2 vol.%) causes formation of the embrittled zone at fracture surface. However, not all mechanical properties were affected equally and not all water concentrations have been critical. The highest deterioration was established in the elongation, followed by the ultimate tensile strength, while the proof strength was affected least.",
journal = "Metals",
title = "The Effect of Water Concentration in Ethyl Alcohol on the Environmentally Assisted Embrittlement of Austempered Ductile Irons",
volume = "11",
number = "1",
pages = "94",
doi = "10.3390/met11010094"
}

Janjatović, P., Erić-Cekić, O., Siđanin, L., Balos, S., Dramićanin, M. R., Grbović-Novaković, J.,& Rajnović, D.. (2021). The Effect of Water Concentration in Ethyl Alcohol on the Environmentally Assisted Embrittlement of Austempered Ductile Irons. in Metals, 11(1), 94.
https://doi.org/10.3390/met11010094

Janjatović P, Erić-Cekić O, Siđanin L, Balos S, Dramićanin MR, Grbović-Novaković J, Rajnović D. The Effect of Water Concentration in Ethyl Alcohol on the Environmentally Assisted Embrittlement of Austempered Ductile Irons. in Metals. 2021;11(1):94.
doi:10.3390/met11010094 .

Janjatović, Petar, Erić-Cekić, Olivera, Siđanin, Leposava, Balos, Sebastian, Dramićanin, Miroslav R., Grbović-Novaković, Jasmina, Rajnović, Dragan, "The Effect of Water Concentration in Ethyl Alcohol on the Environmentally Assisted Embrittlement of Austempered Ductile Irons" in Metals, 11, no. 1 (2021):94,
https://doi.org/10.3390/met11010094 . .

TY  - JOUR
AU  - Rajnović, Dragan
AU  - Balos, Sebastian
AU  - Siđanin, Leposava
AU  - Erić-Cekić, Olivera
AU  - Grbović-Novaković, Jasmina
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/638
AB  - Austempered ductile iron (ADI) is an advanced type of heat treated ductile iron, having comparable mechanical properties as forged steels. However, it was found that in contact with water the mechanical properties of austempered ductile irons decrease, especially their ductility. Despite considerable scientific attention, the cause of this phenomenon remains unclear. Some authors suggested that hydrogen or small atom chemisorption causes the weakening of the surface atomic bonds. To get additional reliable data of that phenomenon, in this paper, two different types of austempered ductile irons were tensile tested in various environments, such as: argon, helium, hydrogen gas and water. It was found that only the hydrogen gas and water gave a statistically significant decrease in mechanical properties, i.e. cause embrittlement. Furthermore, the fracture surface analysis revealed that the morphology of the embrittled zone near the specimen surface shares similarities to the fatigue micro-containing striation-like lines, which indicates that the morphology of the brittle zone may be caused by cyclic local-chemisorption, micro-embrittlement and local-fracture. (C) 2015 Elsevier Inc. All rights reserved.
T2  - Materials Characterization
T1  - Tensile properties of ADI material in water and gaseous environments
VL  - 101
SP  - 26
EP  - 33
DO  - 10.1016/j.matchar.2015.01.001
ER  - 

@article{
author = "Rajnović, Dragan and Balos, Sebastian and Siđanin, Leposava and Erić-Cekić, Olivera and Grbović-Novaković, Jasmina",
year = "2015",
abstract = "Austempered ductile iron (ADI) is an advanced type of heat treated ductile iron, having comparable mechanical properties as forged steels. However, it was found that in contact with water the mechanical properties of austempered ductile irons decrease, especially their ductility. Despite considerable scientific attention, the cause of this phenomenon remains unclear. Some authors suggested that hydrogen or small atom chemisorption causes the weakening of the surface atomic bonds. To get additional reliable data of that phenomenon, in this paper, two different types of austempered ductile irons were tensile tested in various environments, such as: argon, helium, hydrogen gas and water. It was found that only the hydrogen gas and water gave a statistically significant decrease in mechanical properties, i.e. cause embrittlement. Furthermore, the fracture surface analysis revealed that the morphology of the embrittled zone near the specimen surface shares similarities to the fatigue micro-containing striation-like lines, which indicates that the morphology of the brittle zone may be caused by cyclic local-chemisorption, micro-embrittlement and local-fracture. (C) 2015 Elsevier Inc. All rights reserved.",
journal = "Materials Characterization",
title = "Tensile properties of ADI material in water and gaseous environments",
volume = "101",
pages = "26-33",
doi = "10.1016/j.matchar.2015.01.001"
}

Rajnović, D., Balos, S., Siđanin, L., Erić-Cekić, O.,& Grbović-Novaković, J.. (2015). Tensile properties of ADI material in water and gaseous environments. in Materials Characterization, 101, 26-33.
https://doi.org/10.1016/j.matchar.2015.01.001

Rajnović D, Balos S, Siđanin L, Erić-Cekić O, Grbović-Novaković J. Tensile properties of ADI material in water and gaseous environments. in Materials Characterization. 2015;101:26-33.
doi:10.1016/j.matchar.2015.01.001 .

Rajnović, Dragan, Balos, Sebastian, Siđanin, Leposava, Erić-Cekić, Olivera, Grbović-Novaković, Jasmina, "Tensile properties of ADI material in water and gaseous environments" in Materials Characterization, 101 (2015):26-33,
https://doi.org/10.1016/j.matchar.2015.01.001 . .

TY  - JOUR
AU  - Milošević, Sanja S.
AU  - Milanović, Igor
AU  - Paskaš Mamula, Bojana
AU  - Đukić, Anđelka B.
AU  - Rajnović, Dragan
AU  - Pasquini, Luca
AU  - Grbović-Novaković, Jasmina
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5692
AB  - To improve hydrogen desorption properties of MgH2, mechanical milling of MgH2 with low concentration (2 and 5%) of NaNH2 has been performed. Pre-milling of MgH2 for 10 h has been done and then six samples have been synthesised with different milling times from 15 to 60 min. Microstructural characterisation has been performed using X-ray diffraction (XRD), scanning electron microscopy (SEM) and laser scattering measurements (PSD), and correlated to desorption properties examined using Differential Scanning Calorimetry (DSC) and Hydrogen Sorption Analyser (HSA). Thermal analysis shows that desorption temperatures are shifted towards lower values. It also highlights the significance of milling time and additive concentration on desorption behaviour. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Hydrogen desorption properties of MgH2 catalysed with NaNH2
VL  - 38
IS  - 27
SP  - 12223
EP  - 12229
DO  - 10.1016/j.ijhydene.2013.06.083
ER  - 

@article{
author = "Milošević, Sanja S. and Milanović, Igor and Paskaš Mamula, Bojana and Đukić, Anđelka B. and Rajnović, Dragan and Pasquini, Luca and Grbović-Novaković, Jasmina",
year = "2013",
abstract = "To improve hydrogen desorption properties of MgH2, mechanical milling of MgH2 with low concentration (2 and 5%) of NaNH2 has been performed. Pre-milling of MgH2 for 10 h has been done and then six samples have been synthesised with different milling times from 15 to 60 min. Microstructural characterisation has been performed using X-ray diffraction (XRD), scanning electron microscopy (SEM) and laser scattering measurements (PSD), and correlated to desorption properties examined using Differential Scanning Calorimetry (DSC) and Hydrogen Sorption Analyser (HSA). Thermal analysis shows that desorption temperatures are shifted towards lower values. It also highlights the significance of milling time and additive concentration on desorption behaviour. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Hydrogen desorption properties of MgH2 catalysed with NaNH2",
volume = "38",
number = "27",
pages = "12223-12229",
doi = "10.1016/j.ijhydene.2013.06.083"
}

Milošević, S. S., Milanović, I., Paskaš Mamula, B., Đukić, A. B., Rajnović, D., Pasquini, L.,& Grbović-Novaković, J.. (2013). Hydrogen desorption properties of MgH2 catalysed with NaNH2. in International Journal of Hydrogen Energy, 38(27), 12223-12229.
https://doi.org/10.1016/j.ijhydene.2013.06.083

Milošević SS, Milanović I, Paskaš Mamula B, Đukić AB, Rajnović D, Pasquini L, Grbović-Novaković J. Hydrogen desorption properties of MgH2 catalysed with NaNH2. in International Journal of Hydrogen Energy. 2013;38(27):12223-12229.
doi:10.1016/j.ijhydene.2013.06.083 .

Milošević, Sanja S., Milanović, Igor, Paskaš Mamula, Bojana, Đukić, Anđelka B., Rajnović, Dragan, Pasquini, Luca, Grbović-Novaković, Jasmina, "Hydrogen desorption properties of MgH2 catalysed with NaNH2" in International Journal of Hydrogen Energy, 38, no. 27 (2013):12223-12229,
https://doi.org/10.1016/j.ijhydene.2013.06.083 . .

TY  - JOUR
AU  - Grbović-Novaković, Jasmina
AU  - Matović, Ljiljana
AU  - Drvendzija, M.
AU  - Novaković, Nikola
AU  - Rajnović, Dragan
AU  - Šiljegović, Milorad
AU  - Kačarević-Popović, Zorica M.
AU  - Milovanović, S.
AU  - Ivanović, Nenad
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3439
AB  - In order to understand the influence of defect zones on desorption behavior of MgH2, Xe 120 keV ion irradiation of this material has been performed. DSC, SEM measurements, and SRIM calculations have been used to characterize induced modifications and its influence on the hydrogen desorption behavior of MgH2. We have demonstrated that the near-surface area of MgH2 plays the crucial role in hydrogen desorption kinetics. DSC analysis provides clear picture of vacancies influence on H diffusion and desorption in MgH2, and points out that there is possibility to control the thermodynamic parameters by controlled ion bombardment. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Changes of hydrogen storage properties of MgH2 induced by heavy ion irradiation
VL  - 33
IS  - 7
SP  - 1876
EP  - 1879
DO  - 10.1016/j.ijhydene.2008.02.008
ER  - 

@article{
author = "Grbović-Novaković, Jasmina and Matović, Ljiljana and Drvendzija, M. and Novaković, Nikola and Rajnović, Dragan and Šiljegović, Milorad and Kačarević-Popović, Zorica M. and Milovanović, S. and Ivanović, Nenad",
year = "2008",
abstract = "In order to understand the influence of defect zones on desorption behavior of MgH2, Xe 120 keV ion irradiation of this material has been performed. DSC, SEM measurements, and SRIM calculations have been used to characterize induced modifications and its influence on the hydrogen desorption behavior of MgH2. We have demonstrated that the near-surface area of MgH2 plays the crucial role in hydrogen desorption kinetics. DSC analysis provides clear picture of vacancies influence on H diffusion and desorption in MgH2, and points out that there is possibility to control the thermodynamic parameters by controlled ion bombardment. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Changes of hydrogen storage properties of MgH2 induced by heavy ion irradiation",
volume = "33",
number = "7",
pages = "1876-1879",
doi = "10.1016/j.ijhydene.2008.02.008"
}

Grbović-Novaković, J., Matović, L., Drvendzija, M., Novaković, N., Rajnović, D., Šiljegović, M., Kačarević-Popović, Z. M., Milovanović, S.,& Ivanović, N.. (2008). Changes of hydrogen storage properties of MgH2 induced by heavy ion irradiation. in International Journal of Hydrogen Energy, 33(7), 1876-1879.
https://doi.org/10.1016/j.ijhydene.2008.02.008

Grbović-Novaković J, Matović L, Drvendzija M, Novaković N, Rajnović D, Šiljegović M, Kačarević-Popović ZM, Milovanović S, Ivanović N. Changes of hydrogen storage properties of MgH2 induced by heavy ion irradiation. in International Journal of Hydrogen Energy. 2008;33(7):1876-1879.
doi:10.1016/j.ijhydene.2008.02.008 .

Grbović-Novaković, Jasmina, Matović, Ljiljana, Drvendzija, M., Novaković, Nikola, Rajnović, Dragan, Šiljegović, Milorad, Kačarević-Popović, Zorica M., Milovanović, S., Ivanović, Nenad, "Changes of hydrogen storage properties of MgH2 induced by heavy ion irradiation" in International Journal of Hydrogen Energy, 33, no. 7 (2008):1876-1879,
https://doi.org/10.1016/j.ijhydene.2008.02.008 . .

TY  - JOUR
AU  - Eric, O
AU  - Jovanović, Milan T.
AU  - Sidanin, L
AU  - Rajnović, Dragan
AU  - Zec, Slavica
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2993
AB  - Austempered ductile iron (ADI) proved to be an excellent material as it possesses attractive properties: high strength, ductility and toughness are combined with good wear resistance and machinability. These properties can be achieved upon adequate heat treatment which yields optimum microstructure for a given chemical composition. In this paper an investigation has been conducted on ADI alloyed with 0.45%Cu and austempered in a range of times and temperatures. The microstructure and fracture mode developed throughout these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. It was shown that strength, elongation and impact energy strongly depend on amounts of bainitic ferrite and retained austenite. Based on these results an optimal processing window has been established. (C) 2004 Elsevier Ltd. All rights reserved.
T2  - Materials and Design
T1  - The austempering study of alloyed ductile iron
VL  - 27
IS  - 7
SP  - 617
EP  - 622
DO  - 10.1016/j.matdes.2004.11.028
ER  - 

@article{
author = "Eric, O and Jovanović, Milan T. and Sidanin, L and Rajnović, Dragan and Zec, Slavica",
year = "2006",
abstract = "Austempered ductile iron (ADI) proved to be an excellent material as it possesses attractive properties: high strength, ductility and toughness are combined with good wear resistance and machinability. These properties can be achieved upon adequate heat treatment which yields optimum microstructure for a given chemical composition. In this paper an investigation has been conducted on ADI alloyed with 0.45%Cu and austempered in a range of times and temperatures. The microstructure and fracture mode developed throughout these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. It was shown that strength, elongation and impact energy strongly depend on amounts of bainitic ferrite and retained austenite. Based on these results an optimal processing window has been established. (C) 2004 Elsevier Ltd. All rights reserved.",
journal = "Materials and Design",
title = "The austempering study of alloyed ductile iron",
volume = "27",
number = "7",
pages = "617-622",
doi = "10.1016/j.matdes.2004.11.028"
}

Eric, O., Jovanović, M. T., Sidanin, L., Rajnović, D.,& Zec, S.. (2006). The austempering study of alloyed ductile iron. in Materials and Design, 27(7), 617-622.
https://doi.org/10.1016/j.matdes.2004.11.028

Eric O, Jovanović MT, Sidanin L, Rajnović D, Zec S. The austempering study of alloyed ductile iron. in Materials and Design. 2006;27(7):617-622.
doi:10.1016/j.matdes.2004.11.028 .

Eric, O, Jovanović, Milan T., Sidanin, L, Rajnović, Dragan, Zec, Slavica, "The austempering study of alloyed ductile iron" in Materials and Design, 27, no. 7 (2006):617-622,
https://doi.org/10.1016/j.matdes.2004.11.028 . .

TY  - JOUR
AU  - Eric, Olivera
AU  - Rajnović, Dragan
AU  - Zec, Slavica
AU  - Siđanin, Leposava
AU  - Jovanović, Milan T.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3138
AB  - An investigation has been conducted on two austempered ductile irons alloyed with Cu and Cu+Ni, austenitized at 900 degrees C and austempered at 350 degrees C. The microstructure and fracture mode developed through these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. Impact energy measurements were performed on un-notched Charpy specimens. The maximum value of retained austenite volume fraction observed in the material alloyed with Cu+Ni was higher than in that alloyed with Cu austenitized and austempered under the same conditions. This led to the material alloyed with Cu+Ni having higher impact energy and substantial plastic deformation. (c) 2006 Elsevier Inc. All rights reserved.
T2  - Materials Characterization
T1  - Microstructure and fracture of alloyed austempered ductile iron
VL  - 57
IS  - 4-5
SP  - 211
EP  - 217
DO  - 10.1016/j.matchar.2006.01.014
ER  - 

@article{
author = "Eric, Olivera and Rajnović, Dragan and Zec, Slavica and Siđanin, Leposava and Jovanović, Milan T.",
year = "2006",
abstract = "An investigation has been conducted on two austempered ductile irons alloyed with Cu and Cu+Ni, austenitized at 900 degrees C and austempered at 350 degrees C. The microstructure and fracture mode developed through these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. Impact energy measurements were performed on un-notched Charpy specimens. The maximum value of retained austenite volume fraction observed in the material alloyed with Cu+Ni was higher than in that alloyed with Cu austenitized and austempered under the same conditions. This led to the material alloyed with Cu+Ni having higher impact energy and substantial plastic deformation. (c) 2006 Elsevier Inc. All rights reserved.",
journal = "Materials Characterization",
title = "Microstructure and fracture of alloyed austempered ductile iron",
volume = "57",
number = "4-5",
pages = "211-217",
doi = "10.1016/j.matchar.2006.01.014"
}

Eric, O., Rajnović, D., Zec, S., Siđanin, L.,& Jovanović, M. T.. (2006). Microstructure and fracture of alloyed austempered ductile iron. in Materials Characterization, 57(4-5), 211-217.
https://doi.org/10.1016/j.matchar.2006.01.014

Eric O, Rajnović D, Zec S, Siđanin L, Jovanović MT. Microstructure and fracture of alloyed austempered ductile iron. in Materials Characterization. 2006;57(4-5):211-217.
doi:10.1016/j.matchar.2006.01.014 .

Eric, Olivera, Rajnović, Dragan, Zec, Slavica, Siđanin, Leposava, Jovanović, Milan T., "Microstructure and fracture of alloyed austempered ductile iron" in Materials Characterization, 57, no. 4-5 (2006):211-217,
https://doi.org/10.1016/j.matchar.2006.01.014 . .

TY  - JOUR
AU  - Dimčić, Biljana
AU  - Vilotijević, Miroljub N.
AU  - Božić, Dušan
AU  - Rajnović, Dragan
AU  - Jovanović, Milan T.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6528
AB  - The structural and compression mechanical properties of Ti3Al-based intermetallics produced by powder metallurgy techniques have been studied. The as-milled powders were compacted by hot pressing to non-porous homogenous compacts. Prior to compression tests, all compacts were homogenized by a solution treatment at 1050 degrees C (alpha+beta region) for 1h, followed by water quenching. The compression tests were performed from room temperature to 500 degrees C in vacuum at a strain rate of 2.4 x 10(-3) s(-1). Detailed microstructural characterization was evaluated by scanning electron microscopy (SEM), followed by energy dispersive spectroscopy (EDS) and X-ray diffraction analysis.
T2  - Materials Science Forum
T1  - Microstructural and mechanical properties of Ti3Al-based intermetallics produced by powder metallurgy
VL  - 494
SP  - 211
EP  - 216
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6528
ER  - 

@article{
author = "Dimčić, Biljana and Vilotijević, Miroljub N. and Božić, Dušan and Rajnović, Dragan and Jovanović, Milan T.",
year = "2005",
abstract = "The structural and compression mechanical properties of Ti3Al-based intermetallics produced by powder metallurgy techniques have been studied. The as-milled powders were compacted by hot pressing to non-porous homogenous compacts. Prior to compression tests, all compacts were homogenized by a solution treatment at 1050 degrees C (alpha+beta region) for 1h, followed by water quenching. The compression tests were performed from room temperature to 500 degrees C in vacuum at a strain rate of 2.4 x 10(-3) s(-1). Detailed microstructural characterization was evaluated by scanning electron microscopy (SEM), followed by energy dispersive spectroscopy (EDS) and X-ray diffraction analysis.",
journal = "Materials Science Forum",
title = "Microstructural and mechanical properties of Ti3Al-based intermetallics produced by powder metallurgy",
volume = "494",
pages = "211-216",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6528"
}

Dimčić, B., Vilotijević, M. N., Božić, D., Rajnović, D.,& Jovanović, M. T.. (2005). Microstructural and mechanical properties of Ti3Al-based intermetallics produced by powder metallurgy. in Materials Science Forum, 494, 211-216.
https://hdl.handle.net/21.15107/rcub_vinar_6528

Dimčić B, Vilotijević MN, Božić D, Rajnović D, Jovanović MT. Microstructural and mechanical properties of Ti3Al-based intermetallics produced by powder metallurgy. in Materials Science Forum. 2005;494:211-216.
https://hdl.handle.net/21.15107/rcub_vinar_6528 .

Dimčić, Biljana, Vilotijević, Miroljub N., Božić, Dušan, Rajnović, Dragan, Jovanović, Milan T., "Microstructural and mechanical properties of Ti3Al-based intermetallics produced by powder metallurgy" in Materials Science Forum, 494 (2005):211-216,
https://hdl.handle.net/21.15107/rcub_vinar_6528 .

TY  - JOUR
AU  - Eric, O
AU  - Rajnović, Dragan
AU  - Sidjanin, L
AU  - Zec, Slavica
AU  - Jovanović, Milan T.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2925
AB  - Austempered ductile iron (ADI) has proved to be an excellent material as it possesses attractive properties: high strength, ductility and toughness are combined with good wear resistance and machinability. These properties can be achieved upon adequate heat treatment which yields the optimum microstructure for a given chemical composition. In this paper the results of an investigation the austempering of ADI alloyed with 0.45 % Cu for a range of times and temperatures are reported. The microstructure and fracture mode developed throughout these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. It was shown that the strength, elongation and impact energy strongly depend on the amounts of bainitic ferrite and retained austenite. Based on these results, and optimal processing window was established.
T2  - Journal of the Serbian Chemical Society
T1  - An austempering study of ductile iron alloyed with copper
VL  - 70
IS  - 7
SP  - 1015
EP  - 1022
DO  - 10.2298/JSC0507015E
ER  - 

@article{
author = "Eric, O and Rajnović, Dragan and Sidjanin, L and Zec, Slavica and Jovanović, Milan T.",
year = "2005",
abstract = "Austempered ductile iron (ADI) has proved to be an excellent material as it possesses attractive properties: high strength, ductility and toughness are combined with good wear resistance and machinability. These properties can be achieved upon adequate heat treatment which yields the optimum microstructure for a given chemical composition. In this paper the results of an investigation the austempering of ADI alloyed with 0.45 % Cu for a range of times and temperatures are reported. The microstructure and fracture mode developed throughout these treatments have been identified by means of light and scanning electron microscopy and X-ray diffraction analysis. It was shown that the strength, elongation and impact energy strongly depend on the amounts of bainitic ferrite and retained austenite. Based on these results, and optimal processing window was established.",
journal = "Journal of the Serbian Chemical Society",
title = "An austempering study of ductile iron alloyed with copper",
volume = "70",
number = "7",
pages = "1015-1022",
doi = "10.2298/JSC0507015E"
}

Eric, O., Rajnović, D., Sidjanin, L., Zec, S.,& Jovanović, M. T.. (2005). An austempering study of ductile iron alloyed with copper. in Journal of the Serbian Chemical Society, 70(7), 1015-1022.
https://doi.org/10.2298/JSC0507015E

Eric O, Rajnović D, Sidjanin L, Zec S, Jovanović MT. An austempering study of ductile iron alloyed with copper. in Journal of the Serbian Chemical Society. 2005;70(7):1015-1022.
doi:10.2298/JSC0507015E .

Eric, O, Rajnović, Dragan, Sidjanin, L, Zec, Slavica, Jovanović, Milan T., "An austempering study of ductile iron alloyed with copper" in Journal of the Serbian Chemical Society, 70, no. 7 (2005):1015-1022,
https://doi.org/10.2298/JSC0507015E . .