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Cold rollability improvement by twinning and twin-slip synergy in an Mg-Zn-Gd alloy with rare earth texture
Luo, J.1,4; Yan, H.2; Lu, L. W.3; Chen, R. S.2; Wu, A. R.1; Yin, F. C.4
Corresponding AuthorLuo, J.(jluo@hnie.edu.cn) ; Lu, L. W.(cqulqyz@126.com) ; Chen, R. S.(rschen@imr.ac.cn)
2021-11-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume883Pages:12
AbstractIn this study, the Mg-2.0Zn-0.8Gd (wt%) alloy with rare earth (RE) texture was successfully cold-rolled in a single-pass rolling with 35% reduction without edge cracks. The microstructure and texture evolutions were minutely examined to reveal the deep reason for the higher cold rollability than commercial AZ31 alloy. Several {10-12} extension twins were found to be activated due to the RE texture. The {10-12} extension twinning that occurred in parent grains with orientation tilted toward one side of the transverse direction (TD) could reverse the orientation to another side of TD, i.e., from +TD to -TD or from -TD to +TD, which partially resulted in the stability of RE texture component. Complex twin types, including {10-12}-{10-12} secondary extension twin, {10-11}-{10-12} double twin, and even the coexistence of extension twin with contraction twin or double twin were found. Basal and prismatic slips, were extensively activated during the cold rolling process due to the RE texture and Gd alloying. The synergy effect of various types of twinning and multiple dislocation slip, which postponed the shear banding, was the major cause of the high cold rollability. (c) 2021 Elsevier B.V. All rights reserved.
KeywordMg alloys Cold rolling Texture Twin-slip synergy Rollability
Funding OrganizationProvincial Natural Science Foundation of Hunan ; Scientific Research Fund of Hunan Provincial Education Department ; Hunan Provincial Natural Science Foundation for Excellent Young Scholars of China ; Hunan Provincial Key Laboratory of Vehicle Power and Transmission System ; National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC)
DOI10.1016/j.jallcom.2021.160813
Indexed BySCI
Language英语
Funding ProjectProvincial Natural Science Foundation of Hunan[2018JJ3101] ; Provincial Natural Science Foundation of Hunan[2020JJ5181] ; Scientific Research Fund of Hunan Provincial Education Department[17B059] ; Scientific Research Fund of Hunan Provincial Education Department[19C0773] ; Hunan Provincial Natural Science Foundation for Excellent Young Scholars of China[2019JJ30010] ; Hunan Provincial Key Laboratory of Vehicle Power and Transmission System[VPTS202005] ; National Key Research and Development Program of China[2016YFB0301104] ; National Natural Science Foundation of China (NSFC)[51601193] ; National Natural Science Foundation of China (NSFC)[51975207]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000679174100002
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159632
Collection中国科学院金属研究所
Corresponding AuthorLuo, J.; Lu, L. W.; Chen, R. S.
Affiliation1.Hunan Inst Engn, Hunan Prov Key Lab Vehicle Power & Transmiss Syst, Xiangtan 411104, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, Shenyang 110016, Peoples R China
3.Hunan Univ Sci & Technol, Sch Mat Sci & Engn, Xiangtan 411201, Peoples R China
4.Xiangtan Univ, Sch Mat Sci & Engn, Xiangtan 411105, Peoples R China
Recommended Citation
GB/T 7714
Luo, J.,Yan, H.,Lu, L. W.,et al. Cold rollability improvement by twinning and twin-slip synergy in an Mg-Zn-Gd alloy with rare earth texture[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,883:12.
APA Luo, J.,Yan, H.,Lu, L. W.,Chen, R. S.,Wu, A. R.,&Yin, F. C..(2021).Cold rollability improvement by twinning and twin-slip synergy in an Mg-Zn-Gd alloy with rare earth texture.JOURNAL OF ALLOYS AND COMPOUNDS,883,12.
MLA Luo, J.,et al."Cold rollability improvement by twinning and twin-slip synergy in an Mg-Zn-Gd alloy with rare earth texture".JOURNAL OF ALLOYS AND COMPOUNDS 883(2021):12.
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