Energy radiation and limiting speeds of fast moving edge dislocations in tungsten

被引：55

作者：

Jin, Zhaohui ^{[1
,2
]}

Gao, Huajian ^{[3
]}

Gumbsch, Peter ^{[4
,5
]}

机构：

[1] Univ Karlsruhe TH, IZBS, D-76131 Karlsruhe, Germany

[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

[3] Brown Univ, Div Engn, Providence, RI 02912 USA

[4] Univ Karlsruhe TH, IZBS, D-76131 Karlsruhe, Germany

[5] Fraunhofer Inst Werkstoffmech, D-79108 Freiburg, Germany

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.77.094303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The energy loss of a uniformly moving dislocation radiating lattice waves is quantitatively studied by atomistic simulations. The velocity dependence of the energy radiation provides a unique way to understand limiting behavior exhibited by fast moving dislocations. In combination with theoretical analyses, the simulations provide a consistent atomic-level picture of near-sonic, transonic, and supersonic dislocation motions in crystalline materials.

引用

页数：8

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