Dynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation

Isothermal hot compression tests of Al–Mg–Si–Ce–B alloy at 623–823 K with strain rates of 0.01–50 s−1 were carried out on a Gleeble 3500 thermal simulation tester. The flow behavior of the alloy during thermal deformation was analyzed based on the true stress–strain curves. The Arrhenius equations w...

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Autores principales:	Yi Yu, Qinglin Pan, Weiyi Wang, Zhiqi Huang, Shengqian Xiang, Bing Liu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Dynamic softening Hot deformation Processing maps Al–Mg–Si–Ce–B alloy Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/76763bf255ee4da5a9f7054e33777eda
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spelling	oai:doaj.org-article:76763bf255ee4da5a9f7054e33777eda2021-12-04T04:34:29ZDynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation2238-785410.1016/j.jmrt.2021.11.081https://doaj.org/article/76763bf255ee4da5a9f7054e33777eda2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421013600https://doaj.org/toc/2238-7854Isothermal hot compression tests of Al–Mg–Si–Ce–B alloy at 623–823 K with strain rates of 0.01–50 s−1 were carried out on a Gleeble 3500 thermal simulation tester. The flow behavior of the alloy during thermal deformation was analyzed based on the true stress–strain curves. The Arrhenius equations with Zener-Hollomon (Z) parameter and the processing maps under the conditions with various strains were constructed. It is proved that the alloy was prone to plastic deformation instability under conditions with relatively low temperature, and the optimized deformation parameters were 783–823 K/0.03–0.04 s−1. In addition, the microstructure of the alloy was characterized using TEM and EBSD, and the influence of the Z parameter on the dynamic softening mechanisms was discussed. Both dynamic recovery (DRV) and continuous dynamic recrystallization (CDRX) were observed as the softening mechanisms of the alloy during hot deformation. DRV occurred at high Z values, and DRV and CDRX occurred simultaneously as Z value decreased.Yi YuQinglin PanWeiyi WangZhiqi HuangShengqian XiangBing LiuElsevierarticleDynamic softeningHot deformationProcessing mapsAl–Mg–Si–Ce–B alloyMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 6395-6403 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Dynamic softening Hot deformation Processing maps Al–Mg–Si–Ce–B alloy Mining engineering. Metallurgy TN1-997
spellingShingle	Dynamic softening Hot deformation Processing maps Al–Mg–Si–Ce–B alloy Mining engineering. Metallurgy TN1-997 Yi Yu Qinglin Pan Weiyi Wang Zhiqi Huang Shengqian Xiang Bing Liu Dynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation
description	Isothermal hot compression tests of Al–Mg–Si–Ce–B alloy at 623–823 K with strain rates of 0.01–50 s−1 were carried out on a Gleeble 3500 thermal simulation tester. The flow behavior of the alloy during thermal deformation was analyzed based on the true stress–strain curves. The Arrhenius equations with Zener-Hollomon (Z) parameter and the processing maps under the conditions with various strains were constructed. It is proved that the alloy was prone to plastic deformation instability under conditions with relatively low temperature, and the optimized deformation parameters were 783–823 K/0.03–0.04 s−1. In addition, the microstructure of the alloy was characterized using TEM and EBSD, and the influence of the Z parameter on the dynamic softening mechanisms was discussed. Both dynamic recovery (DRV) and continuous dynamic recrystallization (CDRX) were observed as the softening mechanisms of the alloy during hot deformation. DRV occurred at high Z values, and DRV and CDRX occurred simultaneously as Z value decreased.
format	article
author	Yi Yu Qinglin Pan Weiyi Wang Zhiqi Huang Shengqian Xiang Bing Liu
author_facet	Yi Yu Qinglin Pan Weiyi Wang Zhiqi Huang Shengqian Xiang Bing Liu
author_sort	Yi Yu
title	Dynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation
title_short	Dynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation
title_full	Dynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation
title_fullStr	Dynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation
title_full_unstemmed	Dynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation
title_sort	dynamic softening mechanisms and zener-hollomon parameter of al–mg–si–ce–b alloy during hot deformation
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/76763bf255ee4da5a9f7054e33777eda
work_keys_str_mv	AT yiyu dynamicsofteningmechanismsandzenerhollomonparameterofalmgsiceballoyduringhotdeformation AT qinglinpan dynamicsofteningmechanismsandzenerhollomonparameterofalmgsiceballoyduringhotdeformation AT weiyiwang dynamicsofteningmechanismsandzenerhollomonparameterofalmgsiceballoyduringhotdeformation AT zhiqihuang dynamicsofteningmechanismsandzenerhollomonparameterofalmgsiceballoyduringhotdeformation AT shengqianxiang dynamicsofteningmechanismsandzenerhollomonparameterofalmgsiceballoyduringhotdeformation AT bingliu dynamicsofteningmechanismsandzenerhollomonparameterofalmgsiceballoyduringhotdeformation
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Dynamic softening mechanisms and Zener-Hollomon parameter of Al–Mg–Si–Ce–B alloy during hot deformation

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