原子与分子物理学报2024，Vol.41Issue(3)：78-84,7.DOI:10.19855/j.1000-0364.2024.032003
FeCrNiCoCu纳米压痕性能的分子动力学研究
Molecular dynamics simulation of nanoindentation properties of FeCrNiCoCu
陈风明 1赵光霞2
作者信息
- 1. 镇江市高等专科学校电气与信息学院,镇江 212028
- 2. 江苏联合职业技术学院镇江分院,镇江 212016
- 折叠
摘要
Abstract
Nanoindentation is one of the most widely used methods to investigate the characteristics of metallic materials.Thus,in this work,molecular dynamics simulation is employed to investigate the effects of the number of grains,the indenter radius and the indenter velocity on the indentation performance of the FeCrNiCoCu.The results show that when the number of grains increases from 4 to 16,the Young's modulus and hardness gradually decrease,showing an inverse Hall-Petch phenomenon.With the increase of the indenter radius,the Young's modulus increases,the hardness is greatly affected by the contact area,and the larger indenter radius is condu-cive to the generation and expansion of dislocation in the model.The effect of pressing speed on Young's modu-lus the hardness is weak.The higher the pressing speed,the lower the dislocation density and the slower the dis-location propagation.The purpose of this paper is to provide theoretical guidance for the study of FeCrNiCoCu.关键词
纳米压痕/杨氏模量/硬度/位错/FeCrNiCoCuKey words
Nanoindentation/Young's modulus/Hardness/Dislocation/FeCrNiCoCu分类
矿业与冶金引用本文复制引用
陈风明,赵光霞..FeCrNiCoCu纳米压痕性能的分子动力学研究[J].原子与分子物理学报,2024,41(3):78-84,7.
