Crystal-Orientation Dependent Evolution of Edge Dislocations from a Void in Single Crystal Cu
SONG Zhen-Fei, ZHU Wen-Jun, DENG Xiao-Liang, HE Hong-Liang
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, PO Box 919-111,
Mianyang 621900
Crystal-Orientation Dependent Evolution of Edge Dislocations from a Void in Single Crystal Cu
SONG Zhen-Fei;ZHU Wen-Jun;DENG Xiao-Liang;HE Hong-Liang
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, PO Box 919-111,
Mianyang 621900
关键词 ：
61.72.Qq ,
71.72.Lk ,
62.50.+p ,
62.20.x
Abstract ： The micro-void growth by dislocation emission under tensile loading is explored with focus on the influence of crystal orientations. Based on the elastic theory, a dislocation emission criterion is formulated. It is predicted that the preferential location of dislocation nucleation and its threshold stress are dependent on the crystal orientation. Large-scale molecular dynamics (MD) simulations are also performed for single crystal copper to illustrate the dislocation evolution pattern associated with a nano-void growth. The results are in line with those given by the theoretical prediction. As revealed by MD simulations, the characteristics of void growth at micro-scale depend greatly on the crystal-orientation.
Key words ：
61.72.Qq
71.72.Lk
62.50.+p
62.20.x
出版日期: 2006-11-01
引用本文:
SONG Zhen-Fei;ZHU Wen-Jun;DENG Xiao-Liang;HE Hong-Liang. Crystal-Orientation Dependent Evolution of Edge Dislocations from a Void in Single Crystal Cu[J]. 中国物理快报, 2006, 23(11): 3041-3044.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I11/3041
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