Molecular dynamics simulations on the dislocation interactions in magnesium

被引：10
|
作者：
Li, Zikun [1 ]
Tian, Xiaobao [1 ]
Tang, Jing [1 ]
Wang, Qingyuan [1 ]
Jiang, Wentao [1 ]
Fan, Haidong [1 ]
机构：
[1] Sichuan Univ, Dept Mech, Chengdu 610065, Peoples R China
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2021年 / 197卷
基金：
中国国家自然科学基金;
关键词：
Magnesium; Dislocation interactions; Molecular dynamics; C PLUS; CORE STRUCTURES; SLIP; DEFORMATION; COMPRESSION; TEMPERATURE; PLASTICITY; DUCTILITY; MOBILITY; SIZE;
D O I：
10.1016/j.commatsci.2021.110597
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnesium is a lightweight structural metal and has important applications. However, the dislocation plasticity of magnesium was not well studied, especially the pyramidal dislocations. In this paper, molecular dynamics (MD) simulations were performed to systematically investigate the dislocation interactions, i.e. between < c + a > dislocations, between < a > dislocations, between < a > and < c + a > dislocations, as well as between < a > and < c > dislocations. Various new interaction products were observed and analyzed. The current work provides new insights into the dislocation plasticity for understanding the mechanical property of magnesium and its alloys.
引用
收藏
页数：14
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