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 / embrittlement
Source:
Materiali in Tehnologije, 2016, 50, 3, 403-407
Publisher:
Inst Za Kovinske Materiale I In Tehnologie, Ljubjana
Funding / projects:
Ministry of Education, Science and Technological Development, Republic of Serbia
TY - 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
UR - conv_5110
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",
url = "conv_5110"
}
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
conv_5110
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
conv_5110 .
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 .,
conv_5110 .
