Rate effect of material wear in single crystals during nanoscratching

doi:10.1016/j.mtcomm.2024.111003

IMECH-IR > 非线性力学国家重点实验室

	Rate effect of material wear in single crystals during nanoscratching
	Hu JQ(胡剑桥)1,2; Wu X(武鑫)1 ; Song,Huajie 3
通讯作者	Hu, Jianqiao([email protected]) ; Song, Huajie([email protected])
发表期刊	MATERIALS TODAY COMMUNICATIONS
	2024-12-01
卷号	41 页码:9
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.
关键词	Material wear Rate effect Nanoscratching Interfacial adhesion Material ductility
DOI	10.1016/j.mtcomm.2024.111003
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001361198600001
关键词[WOS]	DRY SLIDING WEAR ; MOLECULAR-DYNAMICS ; TRIBOLOGICAL BEHAVIOR ; VELOCITY ; MECHANISMS ; ORIGINS ; LOAD
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
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]
项目资助者	National Natural Science Foundation of China ; Young Elite Scientists Sponsorship Program by CAST ; Strategic Priority Research Program of Chinese Academy of Sciences
论文分区	二类
力学所作者排名	1
RpAuthor	Hu, Jianqiao ; Song, Huajie
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/97493
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Beijing Inst Appl Phys & Computat Math, Beijing 100094, 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.Rp_Au:Hu, Jianqiao, Song, Huajie
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.