| 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 Author | Luo, Xue-Mei(xmluo@imr.ac.cn) |
| 2020-02-28 | |
| Source Publication | JOURNAL OF MATERIALS RESEARCH
 |
| ISSN | 0884-2914 |
| Volume | 35Issue:4Pages:372-379 |
| Abstract | 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. |
| Keyword | fatigue grain size texture nanocrystalline grain growth |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; NSFC ; Natural Science Foundation of Liaoning Province of China |
| DOI | 10.1557/jmr.2019.409 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000516820300004 |
| Publisher | CAMBRIDGE UNIV PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/137319 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Luo, Xue-Mei |
| Affiliation | 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 |
| 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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