机电工程技术2025，Vol.54Issue(5)：23-28,6.DOI:10.3969/j.issn.1009-9492.2024.00166
Cu基体上FeNiCrCoCu高熵合金涂层力学和磨损特性的原子尺度分析
Atomic Scale Analysis of Mechanical and Wear Characteristics of FeNiCrCoCu High Entropy Alloy Coating on Cu Substrate
摘要
Abstract
High entropy alloy(HEA)are considered a promising coating material due to their excellent thermal stability and mechanical properties.Using molecular dynamics method,the mechanical and frictional wear characteristics of FeNiCrCoCu high entropy alloy coating prepared on Cu substrate are investigated at different scratch depths and scratch speeds.Analysis of simulation results indicates that with the increase of cutting depth,the tool motion resistance increases and the friction coefficient increases.However,due to the effects of thermal softening and strain rate hardening,the friction coefficient gradually decreases with the increase of cutting speed.Further analysis revealed that as the scratch depth increases,the dislocation density increases and subsurface damage intensifies.The HEA coating protects the Cu substrate by absorbing and releasing cutting stress,reducing substrate stress and defect depth,and preventing tool cutting from damaging the Cu lattice structure.The HEA coating can effectively improve the wear resistance of the material surface.These findings can provide theoretical basis for the application of HEA coatings.关键词
高熵合金HEA/涂层/分子动力学/摩擦磨损特性/势函数Key words
high entropy alloy/coating/molecular dynamics/friction and wear characteristics/potential function分类
矿业与冶金引用本文复制引用
陈帅,曾鑫,陈宏轩..Cu基体上FeNiCrCoCu高熵合金涂层力学和磨损特性的原子尺度分析[J].机电工程技术,2025,54(5):23-28,6.基金项目
湖南省教育厅研究项目优秀青年项目(22B0584) （22B0584）
