Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy

doi:10.1016/j.matchar.2020.110697

IMR OpenIR

	Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy
	Zhao, L. Y.1,2; Yan, H.1; Chen, R. S.1; Han, En-Hou 1
通讯作者	Yan, H.(hyan@imr.ac.cn) ; Chen, R. S.(rschen@imr.ac.cn)
	2020-12-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	170 页码:9
摘要	The evolution of texture, low-angle grain boundaries and twins in a cold-rolled Mg-Zn-Gd alloy during continuous annealing at 250 degrees C were tracked by quasi-in-situ X-ray diffraction and quasi-in-situ electron backscatter diffraction method, and the influence of extension twins on texture was discussed. The results show that during the whole annealing process, the main texture component is always split toward transverse direction (TD) and the tilting angle hardly changes. However, the peak position changes between the two TD texture components. During continuous annealing, most pre-existing low-angle grain boundaries retain their original misorientation (including angles and axes) and hardly migrate. In addition, a new low-angle grain boundary occurs when two grains with similar orientation grow to connect with each other. Boundaries of pre-existing extension twins tend to migrate with different velocity. Moreover, with the migration, extension twins grow and gradually swallow their matrix grains completely, and thus re-orientate the TD orientations of twinned-grains from one side to another. Considering that nuclei display no preferred orientation between +TD and -TD, the changing peak position is considered to be caused by the migration of ETBs.y
关键词	Texture Mg alloys Orientation Extension twins Grain boundary Quasi-in-situ EBSD
资助者	Natural Science Foundation of Liaoning Province ; National Natural Science Foundation of China (NSFC) ; State Key Program of National Natural Science of China ; National Key Research and Development Program of China ; National Basic Research Program of China (973 Program)
DOI	10.1016/j.matchar.2020.110697
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Liaoning Province[2020-MS-004] ; National Natural Science Foundation of China (NSFC)[51701218] ; National Natural Science Foundation of China (NSFC)[51601193] ; State Key Program of National Natural Science of China[51531002] ; National Key Research and Development Program of China[2016YFB0301104] ; National Basic Research Program of China (973 Program)[2013CB632202]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:000598116700001
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：15[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/321006/158808
专题	中国科学院金属研究所
通讯作者	Yan, H.; Chen, R. S.
作者单位	1.Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, 62 Wencui Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhao, L. Y.,Yan, H.,Chen, R. S.,et al. Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy[J]. MATERIALS CHARACTERIZATION,2020,170:9.
APA	Zhao, L. Y.,Yan, H.,Chen, R. S.,&Han, En-Hou.(2020).Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy.MATERIALS CHARACTERIZATION,170,9.
MLA	Zhao, L. Y.,et al."Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy".MATERIALS CHARACTERIZATION 170(2020):9.