Study on the evolution pattern of grain orientation and misorientation during the static recrystallization of cold-rolled Mg-Zn-Gd alloy

doi:10.1016/j.matchar.2019.02.023

IMR OpenIR

	Study on the evolution pattern of grain orientation and misorientation during the static recrystallization of 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)
	2019-04-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	150 页码:252-266
摘要	The recrystallization process has been reported to be responsible for the formation of non-basal texture in Mg-RE and Mg-Zn-RE alloy. The microstructure, macro-texture, grain orientation and misorientation evolution have been characterized during annealing at 150-480 degrees C to understand the evolution of non-basal texture from a cold-rolled elliptical annular texture to a TD-split texture with double peaks tilting away from ND to TD. The results show that static recrystallization (SRX) begins to take place at 200 degrees C, and an almost fully recrystallized microstructure is obtained at 300 degrees C and obvious grain growth from 300 degrees C to 400 degrees C. Meanwhile, during the SRX process, the R texture component disappears while the T (-45) texture component is enhanced, turning into the TD-split texture, and the specific crystal direction parallel to RD rotates from [01 (1) over bar0] to [(1) over bar2 (1) over bar0]. The misorientation relationship between SRXed grains and the matrix depends on the nucleated location based on the electron backscattered diffraction (EBSD) results. Furthermore, most SRXed grains formed by different ways have T orientation. During grain growth period, several special grain boundaries are preserved. Meanwhile, coarse grains have T orientation and [(1) over bar2 (1) over bar0]//RD orientation, showing a preferred grain growth tendency. It is referred that the texture evolution during SRX is mostly related to preferred grain growth which may be caused by the special misorientation or/and the segregation of Zn and Gd solute atoms on special grain boundaries.
关键词	Mg-Zn-Gd Non-basal texture Orientation Misorientation Static recrystallization
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; State Key Program of National Natural Science of China ; National Basic Research Program of China (973 Program)
DOI	10.1016/j.matchar.2019.02.023
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFB0301104] ; National Natural Science Foundation of China (NSFC)[51601193] ; State Key Program of National Natural Science of China[51531002] ; 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:000462420900028
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：30[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/321006/132670
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, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhao, L. Y.,Yan, H.,Chen, R. S.,et al. Study on the evolution pattern of grain orientation and misorientation during the static recrystallization of cold-rolled Mg-Zn-Gd alloy[J]. MATERIALS CHARACTERIZATION,2019,150:252-266.
APA	Zhao, L. Y.,Yan, H.,Chen, R. S.,&Han, En-Hou.(2019).Study on the evolution pattern of grain orientation and misorientation during the static recrystallization of cold-rolled Mg-Zn-Gd alloy.MATERIALS CHARACTERIZATION,150,252-266.
MLA	Zhao, L. Y.,et al."Study on the evolution pattern of grain orientation and misorientation during the static recrystallization of cold-rolled Mg-Zn-Gd alloy".MATERIALS CHARACTERIZATION 150(2019):252-266.