Formation of dislocation networks in a coherent Cu Σ3(111) twin boundary

被引：25
作者：
Jeon, Jong Bae [1 ,2 ]
Dehm, Gerhard [1 ]
机构：
[1] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany
[2] Korea Inst Ind Technol, Dongnam Reg Div, Energy Component & Mat R&BD Grp, Busan 618230, South Korea
来源：
SCRIPTA MATERIALIA | 2015年 / 102卷
关键词：
Coherent twin boundary; Dislocations; Dislocation structure; Molecular dynamics (MD); Copper; STRENGTH;
D O I：
10.1016/j.scriptamat.2015.02.016
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Molecular dynamics simulations were performed to investigate dislocation network formations in a coherent twin boundary in Cu. Depending on the activated glide system, the initial flawless twin boundary can be heavily or sparsely decorated by a dislocation network. The dislocation mechanism leading to a heavy dislocation network at the twin boundary and its consequence on mechanical properties will be discussed. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：71 / 74
页数：4
相关论文
共 22 条
  • [1] Orientation dependence of shock-induced twinning and substructures in a copper bicrystal
    Cao, Fang
    Beyerlein, Irene J.
    Addessio, Francis L.
    Sencer, Bulent H.
    Trujillo, Carl P.
    Cerreta, Ellen K.
    Gray, George T., III
    [J]. ACTA MATERIALIA, 2010, 58 (02) : 549 - 559
  • [2] Atomic-scale simulation of screw dislocation/coherent twin boundary interaction in Al, Au, Cu and Ni
    Chassagne, M.
    Legros, M.
    Rodney, D.
    [J]. ACTA MATERIALIA, 2011, 59 (04) : 1456 - 1463
  • [3] Repulsive force between screw dislocation and coherent twin boundary in aluminum and copper
    Chen, Zhiming
    Jin, Zhaohui
    Gao, Huajian
    [J]. PHYSICAL REVIEW B, 2007, 75 (21):
  • [4] NANOTWINNED METALS It's all about imperfections
    Greer, Julia R.
    [J]. NATURE MATERIALS, 2013, 12 (08) : 689 - 690
  • [5] Jang DC, 2012, NAT NANOTECHNOL, V7, P594, DOI [10.1038/nnano.2012.116, 10.1038/NNANO.2012.116]
  • [6] Interactions between non-screw lattice dislocations and coherent twin boundaries in face-centered cubic metals
    Jin, Z. -H.
    Gumbsch, P.
    Albe, K.
    Ma, E.
    Lu, K.
    Gleiter, H.
    Hahn, H.
    [J]. ACTA MATERIALIA, 2008, 56 (05) : 1126 - 1135
  • [7] The interaction mechanism of screw dislocations with coherent twin boundaries in different face-centred cubic metals
    Jin, ZH
    Gumbsch, P
    Ma, E
    Albe, K
    Lu, K
    Hahn, H
    Gleiter, H
    [J]. SCRIPTA MATERIALIA, 2006, 54 (06) : 1163 - 1168
  • [8] In situ observations of crack arrest and bridging by nanoscale twins in copper thin films
    Kim, Seong-Woong
    Li, Xiaoyan
    Gao, Huajian
    Kumar, Sharvan
    [J]. ACTA MATERIALIA, 2012, 60 (6-7) : 2959 - 2972
  • [9] Twinning dislocation multiplication at a coherent twin boundary
    Li, N.
    Wang, J.
    Misra, A.
    Zhang, X.
    Huang, J. Y.
    Hirth, J. P.
    [J]. ACTA MATERIALIA, 2011, 59 (15) : 5989 - 5996
  • [10] Dislocation nucleation governed softening and maximum strength in nano-twinned metals
    Li, Xiaoyan
    Wei, Yujie
    Lu, Lei
    Lu, Ke
    Gao, Huajian
    [J]. NATURE, 2010, 464 (7290) : 877 - 880
123