Cumulative shear strain-induced preferential orientation during abnormal grain growth near fatigue crack tips of nanocrystalline Au films

doi:10.1557/jmr.2019.409

CORC > 金属研究所 > 中国科学院金属研究所

	Cumulative shear strain-induced preferential orientation during abnormal grain growth near fatigue crack tips of nanocrystalline Au films
	Zheng, Si-Xue 1,2; Luo, Xue-Mei 1; Zhang, Guang-Ping 1
刊名	JOURNAL OF MATERIALS RESEARCH
	2020-02-28
卷号	35 期号:4 页码:372-379
关键词	fatigue grain size texture nanocrystalline grain growth
ISSN号	0884-2914
DOI	10.1557/jmr.2019.409
通讯作者	Luo, Xue-Mei(xmluo@imr.ac.cn)
英文摘要	A detailed electron backscatter diffraction (EBSD) characterization was utilized to investigate abnormal grain growth behavior of nanocrystalline (NC) Au films constrained by a flexible substrate under cyclic loading. Abnormally grown grains (AGGs) in front of about 15 fatigue cracks were picked out to investigate the grain reorientation behavior during abnormal grain growth in the fatigue crack tip in the cyclically deformed thin films. It shows that the AGGs exhibited 001 orientation along the loading direction, whereas grains grown far away from fatigue cracks had no significant texture change. The cyclic cumulative shear strain was found to play a key role in grain reorientation. A lattice rotation model was proposed to elucidate the grain reorientation mechanism during abnormal grain growth. Such grain reorientation behavior of NC metals was found to provide an intrinsic resistance of the NC metals to fatigue damage.
资助项目	National Natural Science Foundation of China (NSFC)[51601198] ; National Natural Science Foundation of China (NSFC)[51571199] ; NSFC[51771207] ; Natural Science Foundation of Liaoning Province of China[20180510025]
WOS研究方向	Materials Science
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000516820300004
资助机构	National Natural Science Foundation of China (NSFC) ; NSFC ; Natural Science Foundation of Liaoning Province of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137315]
专题	金属研究所_中国科学院金属研究所
通讯作者	Luo, Xue-Mei
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Si-Xue,Luo, Xue-Mei,Zhang, Guang-Ping. Cumulative shear strain-induced preferential orientation during abnormal grain growth near fatigue crack tips of nanocrystalline Au films[J]. JOURNAL OF MATERIALS RESEARCH,2020,35(4):372-379.
APA	Zheng, Si-Xue,Luo, Xue-Mei,&Zhang, Guang-Ping.(2020).Cumulative shear strain-induced preferential orientation during abnormal grain growth near fatigue crack tips of nanocrystalline Au films.JOURNAL OF MATERIALS RESEARCH,35(4),372-379.
MLA	Zheng, Si-Xue,et al."Cumulative shear strain-induced preferential orientation during abnormal grain growth near fatigue crack tips of nanocrystalline Au films".JOURNAL OF MATERIALS RESEARCH 35.4(2020):372-379.