Shear impossibility: Comments on Void growth by dislocation emission and Void growth in metals: Atomistic calculations

SCRIPTA MATERIALIA

卷:63

Article

Bulatov, Vasily V.¹  Wolfer, Wilhelm G.²  Kumar, Mukul¹ 

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Ktech Corp Inc, Albuquerque, NM 87185 USA

关键词: Void growth;    Dislocation nucleation;    Dislocations;    Molecular dynamics;   

DOI  :  10.1016/j.scriptamat.2010.03.001

来源: Elsevier

【 摘 要 】

Recently it was proposed that voids in crystals could grow by emission of shear dislocation loops [V.A. Lubarda, M.S. Scheider, D.H. Kalantar, B.A. Remington, M.A. Meyers, Acta Materialia 52 (2004) 1397-1408]. Even more recently, this proposal was ostensibly supported by molecular simulations of voids in strained single crystals [S. Traiviratana, E.M. Bringa, D.J. Benson, M.A. Meyers, Acta Materialia 56 (2008) 3874-3886]. The purpose of this comment is to dispute this recent assertion as unfounded. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free