典型文献
Molecular dynamics simulation of the tribological performance of amorphous/amorphous nano-laminates
文献摘要:
Because the amorphous/amorphous nano-laminates could enhance significantly the mechanical prop-erties of the amorphous materials,they have been widely studied as a new group of structural materials.In this study,the nano-scratch performance of the Cu80Zr20/Cu20Zr80(A/B-type)and the Cu20Zr80/Cu80Zr20(B/A-type)amorphous/amorphous nano-laminates was evaluated by molecular dynam-ics simulation.Their dependences on the type of indenter,layer thickness,stacking mode and scratch depth were systematically analyzed.There is a significant size effect for the tribological properties of amorphous/amorphous nanolaminates that the friction force of the A/B-type increases with the increase of layer thickness,but the friction force of the B/A-type decreases as the layer thickness increase.The in-terface has an obvious obstruction effect on the shear deformation and reduces the plastic affected region below the scratched groove.Particularly,the contact environment of the indenter bottom has an impor-tant influence on the normal force,so it's not that the deeper the depth,the greater the normal force.Hence it should not be ignored when evaluating the tribological properties of the amorphous/amorphous nano-laminates.This work can deepen the understanding of hetero-interface on the deformation mech-anism during nano-scratch,and help to design amorphous nano-laminates with tailored tribological per-formance for practical applications.
文献关键词:
中图分类号:
作者姓名:
Dongpeng Hua;Wan Wang;Dawei Luo;Qing Zhou;Shuo Li;Junqin Shi;Maosen Fu;Haifeng Wang
作者机构:
State Key Laboratory of Solidification Processing,Center of Advanced Lubrication and Seal Materials,Northwestern Polytechnical University,Xi'an,Shaanxi 710072,PR China
文献出处:
引用格式:
[1]Dongpeng Hua;Wan Wang;Dawei Luo;Qing Zhou;Shuo Li;Junqin Shi;Maosen Fu;Haifeng Wang-.Molecular dynamics simulation of the tribological performance of amorphous/amorphous nano-laminates)[J].材料科学技术(英文版),2022(10):226-236
A类:
Cu80Zr20,Cu20Zr80
B类:
Molecular,dynamics,simulation,tribological,performance,amorphous,Because,could,enhance,significantly,mechanical,materials,they,have,been,widely,studied,new,group,structural,In,this,study,type,was,evaluated,by,molecular,Their,dependences,indenter,layer,thickness,stacking,mode,depth,were,systematically,analyzed,There,size,effect,properties,nanolaminates,that,friction,force,increases,but,decreases,has,obvious,obstruction,shear,deformation,reduces,plastic,affected,region,below,scratched,groove,Particularly,contact,environment,bottom,impor,tant,influence,normal,so,not,deeper,greater,Hence,should,ignored,when,evaluating,This,work,deepen,understanding,hetero,interface,anism,during,help,design,tailored,practical,applications
AB值:
0.445742
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