Dislocation arrangements within slip bands during fatigue cracking

doi:10.1016/j.matchar.2018.08.039

IMR OpenIR

	Dislocation arrangements within slip bands during fatigue cracking
	Li, Linlin; Zhang, Zhenjun; Zhang, Peng; Li, Cuihong; Zhang, Zhefeng
通讯作者	Li, Linlin(llli@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2018-11-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	145 页码:96-100
摘要	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.
关键词	Cu and Cu alloys Slip band Dislocations Fatigue cracking Strain localization Lattice rotation
资助者	National Natural Science Foundation of China (NSFC)
DOI	10.1016/j.matchar.2018.08.039
收录类别	SCI
语种	英语
资助项目	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:000449449200010
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：31[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/321006/130463
专题	中国科学院金属研究所
通讯作者	Li, Linlin; Zhang, Zhefeng
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 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.