Texture modification and mechanical properties of AZ31 magnesium alloy sheet subjected to equal channel angular bending

doi:10.1016/j.jmst.2020.06.034

IMR OpenIR

	Texture modification and mechanical properties of AZ31 magnesium alloy sheet subjected to equal channel angular bending
	Chen, Shuai-Feng 1,2,3; Song, Hong-Wu 1; Cheng, Ming 1; Zheng, Ce 1,4; Zhang, Shi-Hong 1; Lee, Myoung-Gyu 2,3
通讯作者	Zhang, Shi-Hong(shzhang@imr.ac.cn) ; Lee, Myoung-Gyu(myounglee@snu.ac.kr)
	2021-03-20
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	67 页码:211-225
摘要	Analysis of the recently proposed equal channel angular bending (ECAB) process is provided on thin hot-rolled AZ31 magnesium alloy sheets. In particular, effects of deformation temperature and strain path on the texture evolution and mechanical properties are systematically investigated under single pass ECAB at various temperatures and multi-pass ECAB process that involves changes in strain paths. It is found that simultaneous activation of multiple twinning types is successfully introduced during ECAB, which results in obvious tilted component of basal texture. Attributed to the domination of extension twins, weaker basal textures are detected after both single pass ECAB at 150 degrees C and three cross passes ECAB at 200 degrees C. After annealing, the basal texture is further weakened via twin-related recrystallization and the annealed microstructure is featured with mixture of basal and non-basal orientated grains. Additionally, the effect of grain orientation on the mode of plastic deformation and the roles of grain orientation and grain boundary on the local strain accommodation are coherently studied. This study reveals that over 60 % increase of uniform elongation with marginal reduction of tensile strength less than 5 % can be achieved for single pass ECAB at 150 degrees C and three cross passes ECAB at 200 degrees C, which is the result of larger fraction of grains favored with extension twinning and better local strain accommodation. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Equal channel angular bending Magnesium alloy Thin sheet Texture Grain boundary Mechanical properties
资助者	KIAT ; NRF of Korea (ERC)
DOI	10.1016/j.jmst.2020.06.034
收录类别	SCI
语种	英语
资助项目	KIAT[N0002598] ; NRF of Korea (ERC)[2019R1A5A6099595]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000611164200020
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/159181
专题	中国科学院金属研究所
通讯作者	Zhang, Shi-Hong; Lee, Myoung-Gyu
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 08826, South Korea 3.Seoul Natl Univ, Res Inst Adv Mat RIAM, Seoul 08826, South Korea 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shuai-Feng,Song, Hong-Wu,Cheng, Ming,et al. Texture modification and mechanical properties of AZ31 magnesium alloy sheet subjected to equal channel angular bending[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,67:211-225.
APA	Chen, Shuai-Feng,Song, Hong-Wu,Cheng, Ming,Zheng, Ce,Zhang, Shi-Hong,&Lee, Myoung-Gyu.(2021).Texture modification and mechanical properties of AZ31 magnesium alloy sheet subjected to equal channel angular bending.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,67,211-225.
MLA	Chen, Shuai-Feng,et al."Texture modification and mechanical properties of AZ31 magnesium alloy sheet subjected to equal channel angular bending".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 67(2021):211-225.