TY  - JOUR
AU  - Balos, Sebastian
AU  - Rajnović, Dragan
AU  - Dramićanin, Miroslav
AU  - Labus, Danka
AU  - Erić-Cekić, Olivera
AU  - Grbović-Novaković, Jasmina
AU  - Siđanin, Leposava
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1128
AB  - In this paper, the wear rate of ferritic and pearlitic ductile iron, as well as three types of austempered ductile iron (ADI materials), austempered at 300, 350 and 400 degrees C is investigated. Two wear parameters were varied, wear load (0.5, 1.3, 2 kg) and grit paper abrasive grain size (P240, P500, P800). The hardness of ductile iron and stress-assisted phase transformation of retained austenite into martensite (SATRAM) phenomenon in ADI materials were found to play major roles in wear behaviour. The pronounced SATRAM phenomenon was detected for the most severe wear parameters. Another important factor in the occurrence of SATRAM phenomenon is the presence of metastable, low carbon-enriched retained austenite. As a consequence, the wear rate of ADI austempered at 400 degrees C is nearly equivalent to ADI austempered at 300 degrees C at medium and high loading with the coarsest abrasive paper grit tested (P240).
T2  - International Journal of Cast Metals Research
T1  - Abrasive wear behaviour of ADI material with various retained austenite content
VL  - 29
IS  - 4
SP  - 187
EP  - 193
DO  - 10.1080/13640461.2015.1125982
ER  - 

@article{
author = "Balos, Sebastian and Rajnović, Dragan and Dramićanin, Miroslav and Labus, Danka and Erić-Cekić, Olivera and Grbović-Novaković, Jasmina and Siđanin, Leposava",
year = "2016",
abstract = "In this paper, the wear rate of ferritic and pearlitic ductile iron, as well as three types of austempered ductile iron (ADI materials), austempered at 300, 350 and 400 degrees C is investigated. Two wear parameters were varied, wear load (0.5, 1.3, 2 kg) and grit paper abrasive grain size (P240, P500, P800). The hardness of ductile iron and stress-assisted phase transformation of retained austenite into martensite (SATRAM) phenomenon in ADI materials were found to play major roles in wear behaviour. The pronounced SATRAM phenomenon was detected for the most severe wear parameters. Another important factor in the occurrence of SATRAM phenomenon is the presence of metastable, low carbon-enriched retained austenite. As a consequence, the wear rate of ADI austempered at 400 degrees C is nearly equivalent to ADI austempered at 300 degrees C at medium and high loading with the coarsest abrasive paper grit tested (P240).",
journal = "International Journal of Cast Metals Research",
title = "Abrasive wear behaviour of ADI material with various retained austenite content",
volume = "29",
number = "4",
pages = "187-193",
doi = "10.1080/13640461.2015.1125982"
}

Balos, S., Rajnović, D., Dramićanin, M., Labus, D., Erić-Cekić, O., Grbović-Novaković, J.,& Siđanin, L.. (2016). Abrasive wear behaviour of ADI material with various retained austenite content. in International Journal of Cast Metals Research, 29(4), 187-193.
https://doi.org/10.1080/13640461.2015.1125982

Balos S, Rajnović D, Dramićanin M, Labus D, Erić-Cekić O, Grbović-Novaković J, Siđanin L. Abrasive wear behaviour of ADI material with various retained austenite content. in International Journal of Cast Metals Research. 2016;29(4):187-193.
doi:10.1080/13640461.2015.1125982 .

Balos, Sebastian, Rajnović, Dragan, Dramićanin, Miroslav, Labus, Danka, Erić-Cekić, Olivera, Grbović-Novaković, Jasmina, Siđanin, Leposava, "Abrasive wear behaviour of ADI material with various retained austenite content" in International Journal of Cast Metals Research, 29, no. 4 (2016):187-193,
https://doi.org/10.1080/13640461.2015.1125982 . .

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 . .