Vicinal twin boundaries providing dislocation sources in nanocrystalline Al

被引：41

作者：

Froseth, AG ^{[1
]}

Derlet, PM ^{[1
]}

Van Swygenhoven, H ^{[1
]}

机构：

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

来源：

SCRIPTA MATERIALIA | 2006年 / 54卷 / 03期

关键词：

nanocrystalline materials; molecular dynamics; mechanical properties;

D O I：

10.1016/j.scriptamat.2005.09.057

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The role of vicinal twin boundaries in tensile deformation of nanocrystalline materials is investigated using molecular dynamics. Lattice dislocations are emitted from the intersection of the step structures with general grain boundaries, resulting in significant dislocation activity. The results are discussed in terms of the mechanical properties of twin dominated structures. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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页码：477 / 481

页数：5

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