Atomistic simulation of shear localization in Cu-Zr bulk metallic glass

被引：122
|
作者：
Ogata, Shigenobu
Shimizu, Futoshi
Li, Ju
Wakeda, Masato
Shibutani, Yoji
机构：
[1] Osaka Univ, Ctr Atom & Mol Technol, Suita, Osaka 5650871, Japan
[2] Osaka Univ, Dept Mech Engn, Suita, Osaka 5650871, Japan
[3] Osaka Univ, Handai Frontier Res Ctr, Suita, Osaka 5650871, Japan
[4] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA
[5] Japan Atom Energy Agcy, Ctr Computat Sci & Esyst, Tokyo 1100015, Japan
来源：
INTERMETALLICS | 2006年 / 14卷 / 8-9期
基金：
美国国家科学基金会;
关键词：
glasses; metallic; plastic deformation mechanisms; yield stress; defects; planar faults;
D O I：
10.1016/j.intermet.2006.01.022
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Shear deformations of Cu57Zr43 bulk metallic glass (BMG) model systems are performed using molecular dynamics simulation. The results suggest that both the hydrostatic stress and the stress normal to the shear plane should affect the shear response (modified Mohr-Coulomb yield criterion). We see shear localization and shear band nucleation in both a small system of 2000 atoms, and large systems of 524,288 atoms, and analyze local atomic structure evolution. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1033 / 1037
页数：5
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