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

被引：43
作者：
Bulatov, Vasily V. [1 ]
Wolfer, Wilhelm G. [2 ]
Kumar, Mukul [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[2] Ktech Corp Inc, Albuquerque, NM 87185 USA
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 01期
关键词：
Void growth; Dislocation nucleation; Dislocations; Molecular dynamics; ALUMINUM; MOTION; LOOP;
D O I：
10.1016/j.scriptamat.2010.03.001
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
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.
引用
收藏
页码：144 / 147
页数：4
相关论文
共 21 条
  • [1] ON GENERATION OF DISLOCATIONS AT MISFITTING PARTICLES IN A DUCTILE MATRIX
    ASHBY, MF
    JOHNSON, L
    [J]. PHILOSOPHICAL MAGAZINE, 1969, 20 (167): : 1009 - &
  • [2] Kinetic Monte Carlo modeling of dislocation motion in BCC metals
    Cai, W
    Bulatov, VV
    Yip, S
    Argon, AS
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 309 : 270 - 273
  • [3] Atomistic modeling of shock-induced void collapse in copper -: art. no. 161902
    Dávila, LP
    Erhart, P
    Bringa, EM
    Meyers, MA
    Lubarda, VA
    Schneider, MS
    Becker, R
    Kumar, M
    [J]. APPLIED PHYSICS LETTERS, 2005, 86 (16) : 1 - 3
  • [4] Hirth J.P., 1982, THEORY DISLOCATIONS, Vsecond, P96
  • [5] HIRTH JP, 1982, THEORY DISLOCATIONS, P588
  • [6] Hull D., 1984, INTRO DISLOCATIONS
  • [7] Void growth by dislocation emission
    Lubarda, VA
    Schneider, MS
    Kalantar, DH
    Remington, BA
    Meyers, MA
    [J]. ACTA MATERIALIA, 2004, 52 (06) : 1397 - 1408
  • [8] Nanovoid cavitation by dislocation emission in aluminum
    Marian, J
    Knap, J
    Ortiz, M
    [J]. PHYSICAL REVIEW LETTERS, 2004, 93 (16) : 165503 - 1
  • [9] Nanovoid deformation in aluminum under simple shear
    Marian, J
    Knap, J
    Ortiz, M
    [J]. ACTA MATERIALIA, 2005, 53 (10) : 2893 - 2900
  • [10] Dynamic transitions from smooth to rough to twinning in dislocation motion
    Marian, J
    Cai, W
    Bulatov, VV
    [J]. NATURE MATERIALS, 2004, 3 (03) : 158 - 163
123