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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
Corresponding AuthorYang, JH()
2001-05-18
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume37Issue:5Pages:507-511
AbstractThe 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.
Keywordfatigued copper single crystal evolution of persistent slip band internal stress field simulation of dislocation structure
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000172766700013
PublisherSCIENCE CHINA 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/321006/113723
Collection中国科学院金属研究所
Corresponding AuthorYang, JH
Affiliation1.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
Recommended Citation
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.
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