Length scale effects in the simulation of deformation properties of nanocrystalline metals

被引：80

作者：

Derlet, PM ^{[1
]}

Van Swygenhoven, H ^{[1
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

SCRIPTA MATERIALIA | 2002年 / 47卷 / 11期

关键词：

computer simulations; nanocrystal; dislocations; grain boundaries;

D O I：

10.1016/S1359-6462(02)00182-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The observed inverse grain size strain rate dependency in Al columnar structures [Acta Mater 49 (2001) 2713] can be explained by a geometrical argument arising when a dislocation traverses the entire grain. The paper addresses also the differences in dislocation activity in a 2D-columnar and a full 3D-nanostructured geometry. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

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收藏

页码：719 / 724

页数：6

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