夹杂物与空洞相互干涉对刃型位错运动吸附特性的影响

任杰; 买买提明·艾尼; 阿布都热合曼·阿布都卡地尔

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夹杂物与空洞相互干涉对刃型位错运动吸附特性的影响

更新时间：2026-01-21

- 夹杂物与空洞相互干涉对刃型位错运动吸附特性的影响
- Journal of Xinjiang University (Natural Science Edition in Chinese and English) Vol. 31, Issue 2, Pages: 248-252(2014)
- 作者机构：
  
  1. 新疆大学机械工程学院
  2. 喀什地区公安局
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG111.2
- Published：2014
- 稿件说明：
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[1]任杰,买买提明·艾尼,阿布都热合曼·阿布都卡地尔.夹杂物与空洞相互干涉对刃型位错运动吸附特性的影响[J].新疆大学学报(自然科学版),2014,31(02):248-252.

任杰, 买买提明·艾尼, 阿布都热合曼·阿布都卡地尔. 夹杂物与空洞相互干涉对刃型位错运动吸附特性的影响[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2014, 31(2): 248-252.
[1]任杰,买买提明·艾尼,阿布都热合曼·阿布都卡地尔.夹杂物与空洞相互干涉对刃型位错运动吸附特性的影响[J].新疆大学学报(自然科学版),2014,31(02):248-252. DOI：

任杰, 买买提明·艾尼, 阿布都热合曼·阿布都卡地尔. 夹杂物与空洞相互干涉对刃型位错运动吸附特性的影响[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2014, 31(2): 248-252. DOI：

摘要

分子动力学(MD)计算模拟是研究复杂的微观系统的有力工具

使用Osetsky模型[1]和Malerba势能[2]进行模拟可以得到更为准确的数据.国内已经模拟过BCC铁中单独存在沉淀[3]和单独存在空洞[4]时的临界切应力(CRSS)在不同条件下的变化情况.本文模拟了BCC铁中刃型位错与铜沉淀和空洞共同存在时的相互作用过程

分析沉淀和空洞共同存在时对吸附切应力的影响

可以对位错的汇集过程更清楚的表征

同时预防或延迟裂纹的产生.

Abstract

Molecular dynamics(MD) simulation is a powerful tool for research on complex micro system

using Osetsky model [1] and Malerba potential energy[2] to simulate can get more accurate data. It has been simulated that when the presence of only copper precipitates[3] or voids[4] in the BCC iron

how the critical shear stress(CRSS) changes under different conditions inland. Simulated the interaction processes of edge dislocations with copper precipitation and holes co-exist in the BCC iron

and analyzed the influences to adsorption shear stress when copper precipitation and holes co-exist

the simulation can state the gathering processes of dislocations more clearly

prevent or delay the generation of cracks.

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references

Osetsky Yu N,Bacon D J.An atomic-level model for studying the dynamics of edge dislocations in metals[J].Modelling and simulation in materials science and engineering,2003,11:427.

Pasianot R C,Malerba L.Interatomic potentials consistent with thermodynamics:The Fe-Cu system[J].Journal of nuclear materials,2007,360:118-127.

Huang H F,Mamtimin Geni,Akiyuki Takahashi,et al.Study on the interaction of edge dislocation in BCC iron and copper precipitates at atomic scale[J].Journal of Shenyang Agricultural University,2009,40(4):503.

阿布都热合曼·阿布都卡地尔,买买提明·艾尼,亚森江·吾甫尔,等.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.

Buswell J T,Hetherington M G,Roberts K,et al.Effect of radiation on materials:15thinternational symposium[J].ASTM Special Technical Publication,1992,131.

Osetsky Yu N,Bacon D J.Voids and precipitates strengthening inα-iron:What can we learn from atomic-level modelling[J].Journal of Nuclear Materials,2003,323:268.

Mendelev M I,Han S,Srolovita D J,et al.Development of new interatomic potentials appropriate for srytalline and liquid iron[J].Philosophical Magazine,2003,83(35):3977-3994.

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