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

页码：72 / 76

页数：5

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