原子与分子物理学报2011，Vol.28Issue(6)：1155-1158,4.DOI:10.3969/j.issn.1000-0364.2011.06.029
α-Fe中刃型位错与空洞相互作用的分子动力学模拟
Molecular dynamics simulation of interaction between edge dislocation and void in α-Fe
摘要
Abstract
In this paper, the interaction of edge dislocation with void has been simulated by using the molecular dynamics(MD) method and the embedded atom method (EAM) inserting one(011)hemi-atom plane along the[111]orientation. Also, the reaction mechanism of void to dislocation motion has been studied. The results show that at T=10 K the dislocation speed is fast and the increase of void diameter has no obvious reaction to dislocation speed; however, at T=100 K, the dislocation speed and the critical resolved shear stress decrease with the increasing void diameter because of the increase at dislocation density. At last our results are compared with those of the former Osetsky's work and the continuum treatment.关键词
刃型位错/空洞/共轭梯度法/临界切应力Key words
edge dislocation/void/conjugate gradient method/critical resolved shear stress分类
数理科学引用本文复制引用
阿布都热合曼·阿布都卡地尔,买买提明·艾尼,亚森江·吾甫尔,菊池正纪..α-Fe中刃型位错与空洞相互作用的分子动力学模拟[J].原子与分子物理学报,2011,28(6):1155-1158,4.基金项目
国家重点基础研究发展计划(973计划)(2007CB707706) （973计划）
