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Mo中刃位错运动的分子动力学模拟

龚芮

世界有色金属Issue(2):217-219,3.
世界有色金属Issue(2):217-219,3.

Mo中刃位错运动的分子动力学模拟

Molecular Dynamics Simulation of Edge Dislocation Motion in Mo

龚芮1

作者信息

  • 1. 中国原子能科学研究院,北京 102413
  • 折叠

摘要

Abstract

To investigate the deformation mechanism of Mo,molecular dynamics simulations were conducted to study the motion behavior of edge dislocations in Mo.By changing the simulated temperature and applying stress,the influence of temperature and stress on the movement of edge dislocations in Mo was systematically studied.The simulation results show that the velocity of dislocation motion in pure Mo increases with the increase of stress,showing a linear growth pattern at low stress.As the stress increases,the velocity of motion slows down with the increase of stress.The phonon drag mechanism controls the motion of edge dislocations,and the resistance coefficient increases with temperature,resulting in a decrease in dislocation velocity with increasing temperature.

关键词

分子动力学/Mo/刃位错/声子拖拽机制

Key words

molecular dynamics/Mo/edge dislocation/Phonon drag mechanism

分类

矿业与冶金

引用本文复制引用

龚芮..Mo中刃位错运动的分子动力学模拟[J].世界有色金属,2026,(2):217-219,3.

基金项目

联合基金(U2341260) (U2341260)

中核集团(菁英人才)项目(FY212406000102). (菁英人才)

世界有色金属

1002-5065

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