Coupled grain boundary motion in a nanocrystalline grain boundary network

被引：64
|
作者：
Velasco, M. [1 ,2 ]
Van Swygenhoven, H. [1 ,2 ]
Brandl, C. [3 ]
机构：
[1] Paul Scherrer Inst Mat Sci & Simulat, CH-5232 Villigen, Switzerland
[2] Ecole Polytech Fed Lausanne, Inst Mat IMX, CH-1015 Lausanne, Switzerland
[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
来源：
SCRIPTA MATERIALIA | 2011年 / 65卷 / 02期
关键词：
Molecular dynamics; Dislocations; Plasticity; Nanocrystalline; Grain boundary; MIGRATION; AL;
D O I：
10.1016/j.scriptamat.2011.03.039
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Coupled grain boundary motion was simulated in a three-dimensional nanocrystalline Al grain boundary network using molecular dynamics. It is shown that, in spite of the triple junction constraints, a symmetrical Sigma 75 tilt boundary can migrate during the microplastic regime with the same coupling factor as when simulated in a bicrystal configuration. After reaching the full plastic regime, dislocations start coming into play, changing the grain boundary structure and hindering further coupled motion. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：151 / 154
页数：4
相关论文
共 50 条
  • [21] THEORY OF GRAIN BOUNDARY MOTION
    SMOLUCHOWSKI, R
    PHYSICAL REVIEW, 1951, 83 (01): : 69 - 70
  • [22] Equation of Motion for a Grain Boundary
    Zhang, Luchan
    Han, Jian
    Xiang, Yang
    Srolovitz, David J.
    PHYSICAL REVIEW LETTERS, 2017, 119 (24)
  • [23] Effects of Cyclic Loading Performance on Grain Boundary Motion of Nanocrystalline Ni
    Peng Wang
    Xinhua Yang
    Di Peng
    Metallurgical and Materials Transactions A, 2017, 48 : 4977 - 4989
  • [24] Effects of Cyclic Loading Performance on Grain Boundary Motion of Nanocrystalline Ni
    Wang, Peng
    Yang, Xinhua
    Peng, Di
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2017, 48A (10): : 4977 - 4989
  • [25] Analysis of grain boundary network topology using grain boundary wetting
    Volovitch, P
    Traskine, V
    Barrallier, L
    ZEITSCHRIFT FUR METALLKUNDE, 2004, 95 (04): : 215 - 218
  • [26] Coupled grain boundary motion in aluminium: the effect of structural multiplicity
    Cheng, Kuiyu
    Zhang, Liang
    Lu, Cheng
    Tieu, Kiet
    SCIENTIFIC REPORTS, 2016, 6
  • [27] Coupled grain boundary motion in aluminium: the effect of structural multiplicity
    Kuiyu Cheng
    Liang Zhang
    Cheng Lu
    Kiet Tieu
    Scientific Reports, 6
  • [28] Coupled surface and grain boundary motion: a travelling wave solution
    Kanel, J
    Novick-Cohen, A
    Vilenkin, A
    NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, 2004, 59 (08) : 1267 - 1292
  • [29] A traveling wave solution for coupled surface and grain boundary motion
    Kanel, J
    Novick-Cohen, A
    Vilenkin, A
    ACTA MATERIALIA, 2003, 51 (07) : 1981 - 1989
  • [30] Shape of moving grain boundary and its influence on grain boundary motion in zinc
    Sursaeva, V
    Straumal, B
    DIFFUSION IN SOLIDS - PAST, PRESENT AND FUTURE, 2006, 249 : 183 - 188
12345