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Cumulative shear strain-induced preferential orientation during abnormal grain growth near fatigue crack tips of nanocrystalline Au films
Zheng, Si-Xue1,2; Luo, Xue-Mei1; Zhang, Guang-Ping1
Corresponding AuthorLuo, Xue-Mei(xmluo@imr.ac.cn)
2020-02-28
Source PublicationJOURNAL OF MATERIALS RESEARCH
ISSN0884-2914
Volume35Issue:4Pages:372-379
AbstractA 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.
Keywordfatigue grain size texture nanocrystalline grain growth
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; NSFC ; Natural Science Foundation of Liaoning Province of China
DOI10.1557/jmr.2019.409
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000516820300004
PublisherCAMBRIDGE UNIV PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137319
Collection中国科学院金属研究所
Corresponding AuthorLuo, Xue-Mei
Affiliation1.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
Recommended Citation
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.
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