Homogenization of an al-mg alloy and alligatoring failure: alloy ductility and fracture
Abstract
High-strength Al-Mg alloys have a propensity toward hot fracture and failure by alligatoring during hot rolling. In this study the effect of homogenization conditions on the susceptibility of an Al-5.1Mg-0.7Mn alloy toward alligatoring was investigated. It was found that the plates homogenized in a temperature range of 460-520 degrees C were prone toward alligatoring, but once homogenized at 550 degrees C they were not prone toward it any longer. The characterization of the fracture showed a predominance of the intergranular ductile fracture, but the type of the constitutive particles filling the voids changed with the homogenization regime. Grain decohesion and grain-boundary embrittlement show that certain thermal treatments resulted in a microstructure that promoted slip localization.
Keywords:
Al-Mg alloy / thermo-mechanical processing / hot working / ductility / embrittlementSource:
Materiali in Tehnologije, 2016, 50, 3, 403-407Publisher:
- Inst Za Kovinske Materiale I In Tehnologie, Ljubjana
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia
- Design of processing and welding of the high strength Al-Mg alloys for road and railway trasportation applications (RS-MESTD-Technological Development (TD or TR)-34018)
DOI: 10.17222/mit.2015.110
ISSN: 1580-2949
WoS: 000385008500018
Scopus: 2-s2.0-84975037776
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Romhanji, Endre AU - Radetić, Tamara AU - Popović, Miljana PY - 2016 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3365 AB - High-strength Al-Mg alloys have a propensity toward hot fracture and failure by alligatoring during hot rolling. In this study the effect of homogenization conditions on the susceptibility of an Al-5.1Mg-0.7Mn alloy toward alligatoring was investigated. It was found that the plates homogenized in a temperature range of 460-520 degrees C were prone toward alligatoring, but once homogenized at 550 degrees C they were not prone toward it any longer. The characterization of the fracture showed a predominance of the intergranular ductile fracture, but the type of the constitutive particles filling the voids changed with the homogenization regime. Grain decohesion and grain-boundary embrittlement show that certain thermal treatments resulted in a microstructure that promoted slip localization. PB - Inst Za Kovinske Materiale I In Tehnologie, Ljubjana T2 - Materiali in Tehnologije T1 - Homogenization of an al-mg alloy and alligatoring failure: alloy ductility and fracture EP - 407 IS - 3 SP - 403 VL - 50 DO - 10.17222/mit.2015.110 ER -
@article{ author = "Romhanji, Endre and Radetić, Tamara and Popović, Miljana", year = "2016", abstract = "High-strength Al-Mg alloys have a propensity toward hot fracture and failure by alligatoring during hot rolling. In this study the effect of homogenization conditions on the susceptibility of an Al-5.1Mg-0.7Mn alloy toward alligatoring was investigated. It was found that the plates homogenized in a temperature range of 460-520 degrees C were prone toward alligatoring, but once homogenized at 550 degrees C they were not prone toward it any longer. The characterization of the fracture showed a predominance of the intergranular ductile fracture, but the type of the constitutive particles filling the voids changed with the homogenization regime. Grain decohesion and grain-boundary embrittlement show that certain thermal treatments resulted in a microstructure that promoted slip localization.", publisher = "Inst Za Kovinske Materiale I In Tehnologie, Ljubjana", journal = "Materiali in Tehnologije", title = "Homogenization of an al-mg alloy and alligatoring failure: alloy ductility and fracture", pages = "407-403", number = "3", volume = "50", doi = "10.17222/mit.2015.110" }
Romhanji, E., Radetić, T.,& Popović, M.. (2016). Homogenization of an al-mg alloy and alligatoring failure: alloy ductility and fracture. in Materiali in Tehnologije Inst Za Kovinske Materiale I In Tehnologie, Ljubjana., 50(3), 403-407. https://doi.org/10.17222/mit.2015.110
Romhanji E, Radetić T, Popović M. Homogenization of an al-mg alloy and alligatoring failure: alloy ductility and fracture. in Materiali in Tehnologije. 2016;50(3):403-407. doi:10.17222/mit.2015.110 .
Romhanji, Endre, Radetić, Tamara, Popović, Miljana, "Homogenization of an al-mg alloy and alligatoring failure: alloy ductility and fracture" in Materiali in Tehnologije, 50, no. 3 (2016):403-407, https://doi.org/10.17222/mit.2015.110 . .