The mechanical properties of Cu/Ni film composed of substrate Cu and impurity Ni,and the influence of impurity sizes and shapes on yield strength was studied under tensile loading.Based on the embedded-atom-method potential,molecular dynamics simulations were carried out to analyze the interactions between the impurity and dislocations.The results show that the introduction of impurity Ni decreases the yield strength of the nano-crystalline.However,the impurity hinders the movement of dislocations because o...
【更新日期】
2018-05-09
【分类号】
TB383.1
【正文快照】
ZHANG Yan,XIAO Wan-shen(College of Mechanical and Vehicle Engineering,HunanUniversity,Changsha 410082,China)材料在纳米尺度因具有表面效应、小尺度效应、电子隧穿效应等而表现出特殊的力、电、光等特性[1]。近几十年来,高尖端技术以及现代制造技术的快速发展,促进了人
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