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Rate effect of material wear in single crystals during nanoscratching

文献类型：期刊论文

作者Hu JQ(胡剑桥)2,3; Wu X(武鑫)3; Song,Huajie1
刊名MATERIALS TODAY COMMUNICATIONS
出版日期2024-12-01
卷号41页码:9
关键词Material wear Rate effect Nanoscratching Interfacial adhesion Material ductility
DOI10.1016/j.mtcomm.2024.111003
通讯作者Hu, Jianqiao(jianqiaohu@imech.ac.cn) ; Song, Huajie(song_huajie@iapcm.ac.cn)
英文摘要Material wear widely exists between contact surfaces with relatively sliding. Conventional studies generally focus on specific materials, limiting the universality of wear laws. In this paper, we studied the wear rate across various materials through nanoscratching simulations. These materials are characterized by model materials with modified Morse potentials and real material of copper. Our findings indicate that wear rates decrease with increasing sliding velocity. This velocity dependence of wear is attributed to the rate effect of plasticity, which influences wear volume and contact force at varying velocities. In addition, interfacial adhesion plays a significant role in this velocity dependence. There exists a critical adhesion ratio beyond which the wear rate stabilizes for both low and high sliding velocities. Notably, we quantified the rate effect of wear by an analytical expression developed in this study. The results revealed that materials with similar hardness-to-modulus ratios exhibit analogous velocity dependence in wear, characterized by comparable power exponents. Our findings enhance the understanding on velocity dependence of wear rate for contact surfaces across distinct interfacial and material properties.
分类号二类
WOS关键词DRY SLIDING WEAR ; MOLECULAR-DYNAMICS ; TRIBOLOGICAL BEHAVIOR ; VELOCITY ; MECHANISMS ; ORIGINS ; LOAD
资助项目National Natural Science Foundation of China[12172358] ; Young Elite Scientists Sponsorship Program by CAST[2023QNRC001] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620101]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:001361198600001
资助机构National Natural Science Foundation of China ; Young Elite Scientists Sponsorship Program by CAST ; Strategic Priority Research Program of Chinese Academy of Sciences
其他责任者Hu, Jianqiao ; Song, Huajie
源URL[http://dspace.imech.ac.cn/handle/311007/97492]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Beijing Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Hu JQ,Wu X,Song,Huajie. Rate effect of material wear in single crystals during nanoscratching[J]. MATERIALS TODAY COMMUNICATIONS,2024,41:9.
APA 胡剑桥,武鑫,&Song,Huajie.(2024).Rate effect of material wear in single crystals during nanoscratching.MATERIALS TODAY COMMUNICATIONS,41,9.
MLA 胡剑桥,et al."Rate effect of material wear in single crystals during nanoscratching".MATERIALS TODAY COMMUNICATIONS 41(2024):9.

入库方式： OAI收割

来源：力学研究所

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