| Dislocation arrangements within slip bands during fatigue cracking | |
| Li, Linlin; Zhang, Zhenjun; Zhang, Peng; Li, Cuihong; Zhang, Zhefeng | |
| Corresponding Author | Li, Linlin(llli@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) |
| 2018-11-01 | |
| Source Publication | MATERIALS CHARACTERIZATION
 |
| ISSN | 1044-5803 |
| Volume | 145Pages:96-100 |
| Abstract | Microstructures and dislocations associated with the slip band (SB) fatigue cracks were investigated in Cu single crystal and bicrystal. It is found that there are high strain localizations with abundant dislocation cells around the cracked SBs. Due to the high local strain and slip irreversibility, the lattice rotates severely leading to large misorientation and hence low- or high- angle grain boundaries could form between the neighboring cells. Moreover, the dislocation walls can serve as preferential sites for nucleation and propagation of fatigue cracks with high density of dislocations, vacancies and high strain incompatibility. |
| Keyword | Cu and Cu alloys Slip band Dislocations Fatigue cracking Strain localization Lattice rotation |
| Funding Organization | National Natural Science Foundation of China (NSFC) |
| DOI | 10.1016/j.matchar.2018.08.039 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[51171194] ; National Natural Science Foundation of China (NSFC)[51331007] ; National Natural Science Foundation of China (NSFC)[51471170] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000449449200010 |
| Publisher | ELSEVIER SCIENCE INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/130463 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Linlin; Zhang, Zhefeng |
| Affiliation | Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Linlin,Zhang, Zhenjun,Zhang, Peng,et al. Dislocation arrangements within slip bands during fatigue cracking[J]. MATERIALS CHARACTERIZATION,2018,145:96-100. |
| APA | Li, Linlin,Zhang, Zhenjun,Zhang, Peng,Li, Cuihong,&Zhang, Zhefeng.(2018).Dislocation arrangements within slip bands during fatigue cracking.MATERIALS CHARACTERIZATION,145,96-100. |
| MLA | Li, Linlin,et al."Dislocation arrangements within slip bands during fatigue cracking".MATERIALS CHARACTERIZATION 145(2018):96-100. |
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