TY  - JOUR
AU  - Erić, Olivera
AU  - Rajnović, Dragan
AU  - Zec, Slavica
AU  - Šiđanin, Leposava
AU  - Jovanović, Milan T.
PY  - 2006
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/579
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.
PB  - Elsevier Science Inc, New York
T2  - Materials Characterization
T1  - Microstructure and fracture of alloyed austempered ductile iron
EP  - 217
IS  - 4-5
SP  - 211
VL  - 57
DO  - 10.1016/j.matchar.2006.01.014
ER  - 

@article{
author = "Erić, Olivera and Rajnović, Dragan and Zec, Slavica and Šiđanin, 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.",
publisher = "Elsevier Science Inc, New York",
journal = "Materials Characterization",
title = "Microstructure and fracture of alloyed austempered ductile iron",
pages = "217-211",
number = "4-5",
volume = "57",
doi = "10.1016/j.matchar.2006.01.014"
}

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

Erić O, Rajnović D, Zec S, Šiđanin 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 .

Erić, Olivera, Rajnović, Dragan, Zec, Slavica, Šiđanin, 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  - Erić, Olivera
AU  - Jovanović, M
AU  - Šiđanin, Leposava
AU  - Rajnović, Dragan
AU  - Zec, Slavica
PY  - 2006
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/604
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.
PB  - Elsevier Sci Ltd, Oxford
T2  - Materials & Design
T1  - The austempering study of alloyed ductile iron
EP  - 622
IS  - 7
SP  - 617
VL  - 27
DO  - 10.1016/j.matdes.2004.11.028
ER  - 

@article{
author = "Erić, Olivera and Jovanović, M and Šiđanin, Leposava 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.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Materials & Design",
title = "The austempering study of alloyed ductile iron",
pages = "622-617",
number = "7",
volume = "27",
doi = "10.1016/j.matdes.2004.11.028"
}

Erić, O., Jovanović, M., Šiđanin, L., Rajnović, D.,& Zec, S.. (2006). The austempering study of alloyed ductile iron. in Materials & Design
Elsevier Sci Ltd, Oxford., 27(7), 617-622.
https://doi.org/10.1016/j.matdes.2004.11.028

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

Erić, Olivera, Jovanović, M, Šiđanin, Leposava, Rajnović, Dragan, Zec, Slavica, "The austempering study of alloyed ductile iron" in Materials & Design, 27, no. 7 (2006):617-622,
https://doi.org/10.1016/j.matdes.2004.11.028 . .

TY  - JOUR
AU  - Jovanović, M.T.
AU  - Tadić, Srđan
AU  - Zec, Slavica
AU  - Mišković, Žarko
AU  - Bobić, Ilija
PY  - 2006
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/649
AB  - Production of investment castings of titanium alloys was considerably increased during last years due to the significant cost savings compared to complicated machined parts. However, the disadvantage of as-cast titanium alloys is that the heat-treatment remains only a limited option for improvement of their properties. The object of this paper was to study the effect of heat-treatment of investment cast Ti-6Al-4V alloy performing X-ray diffraction analysis, light microscopy and quantitative metallography together with hardness and room temperature tensile tests. The effect of annealing temperatures (above and below beta transus temperature) and cooling rates on microstructure and mechanical properties was discussed in terms of the beta ->alpha transformation. The results of this paper also show that, besides heat treatment parameters, melting and casting practice together with mold technology strongly influence the properties of castings.
PB  - Elsevier Sci Ltd, Oxford
T2  - Materials & Design
T1  - The effect of annealing temperatures and cooling rates on microstructure and mechanical properties of investment cast Ti-6Al-4V alloy
EP  - 199
IS  - 3
SP  - 192
VL  - 27
DO  - 10.1016/j.matdes.2004.10.017
ER  - 

@article{
author = "Jovanović, M.T. and Tadić, Srđan and Zec, Slavica and Mišković, Žarko and Bobić, Ilija",
year = "2006",
abstract = "Production of investment castings of titanium alloys was considerably increased during last years due to the significant cost savings compared to complicated machined parts. However, the disadvantage of as-cast titanium alloys is that the heat-treatment remains only a limited option for improvement of their properties. The object of this paper was to study the effect of heat-treatment of investment cast Ti-6Al-4V alloy performing X-ray diffraction analysis, light microscopy and quantitative metallography together with hardness and room temperature tensile tests. The effect of annealing temperatures (above and below beta transus temperature) and cooling rates on microstructure and mechanical properties was discussed in terms of the beta ->alpha transformation. The results of this paper also show that, besides heat treatment parameters, melting and casting practice together with mold technology strongly influence the properties of castings.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Materials & Design",
title = "The effect of annealing temperatures and cooling rates on microstructure and mechanical properties of investment cast Ti-6Al-4V alloy",
pages = "199-192",
number = "3",
volume = "27",
doi = "10.1016/j.matdes.2004.10.017"
}

Jovanović, M.T., Tadić, S., Zec, S., Mišković, Ž.,& Bobić, I.. (2006). The effect of annealing temperatures and cooling rates on microstructure and mechanical properties of investment cast Ti-6Al-4V alloy. in Materials & Design
Elsevier Sci Ltd, Oxford., 27(3), 192-199.
https://doi.org/10.1016/j.matdes.2004.10.017

Jovanović M, Tadić S, Zec S, Mišković Ž, Bobić I. The effect of annealing temperatures and cooling rates on microstructure and mechanical properties of investment cast Ti-6Al-4V alloy. in Materials & Design. 2006;27(3):192-199.
doi:10.1016/j.matdes.2004.10.017 .

Jovanović, M.T., Tadić, Srđan, Zec, Slavica, Mišković, Žarko, Bobić, Ilija, "The effect of annealing temperatures and cooling rates on microstructure and mechanical properties of investment cast Ti-6Al-4V alloy" in Materials & Design, 27, no. 3 (2006):192-199,
https://doi.org/10.1016/j.matdes.2004.10.017 . .

TY  - JOUR
AU  - Erić, Olivera
AU  - Rajnović, Dragan
AU  - Šiđanin, Leposava
AU  - Zec, Slavica
AU  - Jovanović, M.T.
PY  - 2005
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/484
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.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of The Serbian Chemical Society
T1  - An austempering study of ductile iron alloyed with copper
EP  - 1022
IS  - 7
SP  - 1015
VL  - 70
DO  - 10.2298/JSC0507015E
ER  - 

@article{
author = "Erić, Olivera and Rajnović, Dragan and Šiđanin, Leposava and Zec, Slavica and Jovanović, M.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.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of The Serbian Chemical Society",
title = "An austempering study of ductile iron alloyed with copper",
pages = "1022-1015",
number = "7",
volume = "70",
doi = "10.2298/JSC0507015E"
}

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

Erić O, Rajnović D, Šiđanin L, Zec S, Jovanović M. 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 .

Erić, Olivera, Rajnović, Dragan, Šiđanin, Leposava, Zec, Slavica, Jovanović, M.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 . .

TY  - JOUR
AU  - Erić, Olivera
AU  - Šiđanin, Leposava
AU  - Mišković, Zoran
AU  - Zec, Slavica
AU  - Jovanović, M.T.
PY  - 2004
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/465
AB  - The effect of austempering on the microstructure and toughness of nodular cast iron (designated as CuNiMoSG) alloyed with molybdenum, copper, nickel, and manganese has been studied. Light microscopy (LM), scanning electron microscopy (SEM), and X-ray diffraction technique were performed for microstructural characterization, whereas impact energy test was applied for toughness measurement. Specimens were austenitised at 860 degreesC, then austempered for various times at 320 and 400 degreesC, followed by ice-water quenching. Austempering at 320 degreesC produces a microstructure consisting of a mixture of acicular bainitic ferrite and the stable carbon-enriched austenite. In this microstructure epsilon-carbides are also identified after austempering up to 5 h. Fracture mode is changed from ductile to brittle with the prolonged time of austempering at 320 degreesC. The highest impact energy (115 kJ) corresponds not only to ductile fracture, but also to the maximum value of the volume fraction of retained austenite. Only martensitic structure was observed during austempering at 400 degreesC, inducing brittle fracture and significantly low-impact energy (10-12 kJ).
PB  - Elsevier, Amsterdam
T2  - Materials Letters
T1  - Microstructure and toughness of CuNiMo austempered ductile iron
EP  - 2711
IS  - 22-23
SP  - 2707
VL  - 58
DO  - 10.1016/j.matlet.2004.02.041
ER  - 

@article{
author = "Erić, Olivera and Šiđanin, Leposava and Mišković, Zoran and Zec, Slavica and Jovanović, M.T.",
year = "2004",
abstract = "The effect of austempering on the microstructure and toughness of nodular cast iron (designated as CuNiMoSG) alloyed with molybdenum, copper, nickel, and manganese has been studied. Light microscopy (LM), scanning electron microscopy (SEM), and X-ray diffraction technique were performed for microstructural characterization, whereas impact energy test was applied for toughness measurement. Specimens were austenitised at 860 degreesC, then austempered for various times at 320 and 400 degreesC, followed by ice-water quenching. Austempering at 320 degreesC produces a microstructure consisting of a mixture of acicular bainitic ferrite and the stable carbon-enriched austenite. In this microstructure epsilon-carbides are also identified after austempering up to 5 h. Fracture mode is changed from ductile to brittle with the prolonged time of austempering at 320 degreesC. The highest impact energy (115 kJ) corresponds not only to ductile fracture, but also to the maximum value of the volume fraction of retained austenite. Only martensitic structure was observed during austempering at 400 degreesC, inducing brittle fracture and significantly low-impact energy (10-12 kJ).",
publisher = "Elsevier, Amsterdam",
journal = "Materials Letters",
title = "Microstructure and toughness of CuNiMo austempered ductile iron",
pages = "2711-2707",
number = "22-23",
volume = "58",
doi = "10.1016/j.matlet.2004.02.041"
}

Erić, O., Šiđanin, L., Mišković, Z., Zec, S.,& Jovanović, M.T.. (2004). Microstructure and toughness of CuNiMo austempered ductile iron. in Materials Letters
Elsevier, Amsterdam., 58(22-23), 2707-2711.
https://doi.org/10.1016/j.matlet.2004.02.041

Erić O, Šiđanin L, Mišković Z, Zec S, Jovanović M. Microstructure and toughness of CuNiMo austempered ductile iron. in Materials Letters. 2004;58(22-23):2707-2711.
doi:10.1016/j.matlet.2004.02.041 .

Erić, Olivera, Šiđanin, Leposava, Mišković, Zoran, Zec, Slavica, Jovanović, M.T., "Microstructure and toughness of CuNiMo austempered ductile iron" in Materials Letters, 58, no. 22-23 (2004):2707-2711,
https://doi.org/10.1016/j.matlet.2004.02.041 . .

TY  - JOUR
AU  - Tadić, Srđan
AU  - Zec, Slavica
AU  - Jovanović, M.T.
PY  - 2000
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/211
AB  - Inverse pole figures have been plotted to determine preferred crystallographic orientations in a powder-compacted Ni3Al aluminide prealloyed with Fe, Ti and B. The main textural components, although weak, were noticeably altered by cold deformation, recrystallization and high-temperature deformation. Cold uniaxial compression generated a pronounced (110) orientation and the less common (112) orientation. The existence of the latter orientation was ascribed to the cubic --> tetragonal structural transformation (Ll(2) --> DO22) The beginning of recrystallization was characterized by a string of (113)+(112)+(111) orientations. However, after prolonged periods of annealing, the (113) orientation diminished, whereas the (111) and (112) orientations became stronger, perhaps due to preferred orientational growth. Deformation at high-temperature gave rise to strong (111) and (100)+(112) orientations. It was found that disordering and dynamic recrystallization simultaneously control high-temperature deformation.
PB  - Elsevier Science Inc, New York
T2  - Materials Characterization
T1  - Crystallographic orientations of Ni3Al-based aluminide
EP  - 231
IS  - 3
SP  - 227
VL  - 45
DO  - 10.1016/S1044-5803(00)00083-8
ER  - 

@article{
author = "Tadić, Srđan and Zec, Slavica and Jovanović, M.T.",
year = "2000",
abstract = "Inverse pole figures have been plotted to determine preferred crystallographic orientations in a powder-compacted Ni3Al aluminide prealloyed with Fe, Ti and B. The main textural components, although weak, were noticeably altered by cold deformation, recrystallization and high-temperature deformation. Cold uniaxial compression generated a pronounced (110) orientation and the less common (112) orientation. The existence of the latter orientation was ascribed to the cubic --> tetragonal structural transformation (Ll(2) --> DO22) The beginning of recrystallization was characterized by a string of (113)+(112)+(111) orientations. However, after prolonged periods of annealing, the (113) orientation diminished, whereas the (111) and (112) orientations became stronger, perhaps due to preferred orientational growth. Deformation at high-temperature gave rise to strong (111) and (100)+(112) orientations. It was found that disordering and dynamic recrystallization simultaneously control high-temperature deformation.",
publisher = "Elsevier Science Inc, New York",
journal = "Materials Characterization",
title = "Crystallographic orientations of Ni3Al-based aluminide",
pages = "231-227",
number = "3",
volume = "45",
doi = "10.1016/S1044-5803(00)00083-8"
}

Tadić, S., Zec, S.,& Jovanović, M.T.. (2000). Crystallographic orientations of Ni3Al-based aluminide. in Materials Characterization
Elsevier Science Inc, New York., 45(3), 227-231.
https://doi.org/10.1016/S1044-5803(00)00083-8

Tadić S, Zec S, Jovanović M. Crystallographic orientations of Ni3Al-based aluminide. in Materials Characterization. 2000;45(3):227-231.
doi:10.1016/S1044-5803(00)00083-8 .

Tadić, Srđan, Zec, Slavica, Jovanović, M.T., "Crystallographic orientations of Ni3Al-based aluminide" in Materials Characterization, 45, no. 3 (2000):227-231,
https://doi.org/10.1016/S1044-5803(00)00083-8 . .