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Texture modification and mechanical properties of AZ31 magnesium alloy sheet subjected to equal channel angular bending
Chen, Shuai-Feng1,2,3; Song, Hong-Wu1; Cheng, Ming1; Zheng, Ce1,4; Zhang, Shi-Hong1; Lee, Myoung-Gyu2,3
Corresponding AuthorZhang, Shi-Hong(shzhang@imr.ac.cn) ; Lee, Myoung-Gyu(myounglee@snu.ac.kr)
2021-03-20
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume67Pages:211-225
AbstractAnalysis 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.
KeywordEqual channel angular bending Magnesium alloy Thin sheet Texture Grain boundary Mechanical properties
Funding OrganizationKIAT ; NRF of Korea (ERC)
DOI10.1016/j.jmst.2020.06.034
Indexed BySCI
Language英语
Funding ProjectKIAT[N0002598] ; NRF of Korea (ERC)[2019R1A5A6099595]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000611164200020
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159181
Collection中国科学院金属研究所
Corresponding AuthorZhang, Shi-Hong; Lee, Myoung-Gyu
Affiliation1.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
Recommended Citation
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.
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