Evolution of persistent slip bands and its internal stress field in a fatigued copper single crystal

IMR OpenIR

	Evolution of persistent slip bands and its internal stress field in a fatigued copper single crystal
	Yang, JH ; Li, Y ; Li, SX ; Ma, CX ; Wang, G ; Ke, W
通讯作者	Yang, JH()
	2001-05-18
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	37 期号:5 页码:507-511
摘要	The evolution from the so-call matrix vein to persistent slip bands (PSBs) in a fatigued copper single crystal of single-slip-oriented has been investigated by using electron channeling contrast (ECC) technique in a scanning electron microscope (SEM). The distribution of the internal stress field of typical dislocation structures in consecutive stages of PSBs formation was calculated by the method of discrete dislocation distribution. The results show that the distribution of internal stress is non-uniform in the evolution process from matrix vein to PSBs dislocation structures. In the dislocation dense regions (matrix vein and PSBs walls) the distribution of the internal stress is relatively more concentrated than that in the dislocation poor regions (channel). In a PSB the internal stress distribution is apparently weaker than that in matrix after the PSBs well formed. At the interface between PSBs and matrix, the stresses have a sharp transition. Finally a possible mechanism for PSBs formation was proposed.
关键词	fatigued copper single crystal evolution of persistent slip band internal stress field simulation of dislocation structure
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000172766700013
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：1[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/321006/113723
专题	中国科学院金属研究所
通讯作者	Yang, JH
作者单位	1.Chinese Acad Sci, Inst Met Res, State Key Lab Fatique & Fracture Mat, Shenyang 110016, Peoples R China 2.Northeastern Univ, Dept Mat Phys, Shenyang 110006, Peoples R China 3.Shenyang Univ, Coll Informat Engn, Shenyang 110044, Peoples R China
推荐引用方式 GB/T 7714	Yang, JH,Li, Y,Li, SX,et al. Evolution of persistent slip bands and its internal stress field in a fatigued copper single crystal[J]. ACTA METALLURGICA SINICA,2001,37(5):507-511.
APA	Yang, JH,Li, Y,Li, SX,Ma, CX,Wang, G,&Ke, W.(2001).Evolution of persistent slip bands and its internal stress field in a fatigued copper single crystal.ACTA METALLURGICA SINICA,37(5),507-511.
MLA	Yang, JH,et al."Evolution of persistent slip bands and its internal stress field in a fatigued copper single crystal".ACTA METALLURGICA SINICA 37.5(2001):507-511.