Tensile properties of ADI material in water and gaseous environments
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2015
Authors
Rajnović, DraganBaloš, Sebastian
Šiđanin, Leposava
Erić-Cekić, Olivera
Grbović-Novaković, Jasmina
Article (Published version)
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Show full item recordAbstract
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.
Keywords:
Water environment / Hydrogen embrittlement / Gaseous environment / Cyclic chemisorption / ADI materialSource:
Materials Characterization, 2015, 101, 26-33Publisher:
- Elsevier Science Inc, New York
Funding / projects:
- Design, development and implementation of the new generation of ADI materials (RS-MESTD-Technological Development (TD or TR)-34015)
DOI: 10.1016/j.matchar.2015.01.001
ISSN: 1044-5803
WoS: 000357146100004
Scopus: 2-s2.0-84920971255
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Inovacioni centarTY - JOUR AU - Rajnović, Dragan AU - Baloš, Sebastian AU - Šiđanin, Leposava AU - Erić-Cekić, Olivera AU - Grbović-Novaković, Jasmina PY - 2015 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2086 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. PB - Elsevier Science Inc, New York T2 - Materials Characterization T1 - Tensile properties of ADI material in water and gaseous environments EP - 33 SP - 26 VL - 101 DO - 10.1016/j.matchar.2015.01.001 ER -
@article{ author = "Rajnović, Dragan and Baloš, Sebastian and Šiđanin, 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.", publisher = "Elsevier Science Inc, New York", journal = "Materials Characterization", title = "Tensile properties of ADI material in water and gaseous environments", pages = "33-26", volume = "101", doi = "10.1016/j.matchar.2015.01.001" }
Rajnović, D., Baloš, S., Šiđanin, L., Erić-Cekić, O.,& Grbović-Novaković, J.. (2015). Tensile properties of ADI material in water and gaseous environments. in Materials Characterization Elsevier Science Inc, New York., 101, 26-33. https://doi.org/10.1016/j.matchar.2015.01.001
Rajnović D, Baloš S, Šiđanin 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, Baloš, Sebastian, Šiđanin, 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 . .