Dislocation emission and equation of energy barriers at model I crack tip

被引：0
|
作者：
Zou, HC [1 ]
Dai, SJ [1 ]
Liu, FR [1 ]
Hu, XY [1 ]
Li, CC [1 ]
机构：
[1] HUAZHONG UNIV SCI & TECHNOL,NATL LAB PLAST FORMING SIMULAT & DIE & MOULD TECH,WUHAN 430074,PEOPLES R CHINA
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 1996年 / 6卷 / 01期
关键词：
emission of dislocation; propagation of crack; Peierls-Nabarro dislocation model; energy barriers; model I crack;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The propagation for the model I crack in aluminum single crystal has been directly studied by in-situ TEM observation. The equation of energy barrier of the dislocation building-up and emission at the model I crack rip has been established by means of Peierls-Nabarro dislocation model and starting from angle of energy. By means of calculation, the critical value of spontaneous emission of the dislocations from tip of the model I crack was obtained.
引用
收藏
页码：72 / 76
页数：5
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