ATOMISTIC SIMULATIONS OF DISLOCATION NUCLEATION IN ALUMINUM

被引：0

作者：

Kuksin, Alexey Yu. ^{[1
]}

Yanilkin, Alexey V. ^{[1
]}

机构：

[1] RAS, JIHT, Moscow 125412, Russia

来源：

SHOCK COMPRESSION OF CONDENSED MATTER - 2009, PTS 1 AND 2 | 2009年 / 1195卷

关键词：

Molecular dynamics; dislocation; nucleation rate; MOLECULAR-DYNAMICS; CRYSTAL; COPPER;

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Homogeneous dislocation nucleation is considered by means of molecular dynamics (MD) simulations. Dislocation nucleation starts from the formation of partial dislocation loop by thermal fluctuations. Stochastic properties of nucleation time are considered. Homogeneous nucleation rates are calculated at different temperatures and shear stresses. The comparison with dislocation theory is presented: the dependence of the loop energy on shear stress and radius, nucleation rate at different temperatures. The activation shear stresses of these mechanism are obtained.

引用

页码：841 / 844

页数：4

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