Effect of plasticity on nanoscale wear of third-body particles

doi:10.1016/j.triboint.2020.106739

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Effect of plasticity on nanoscale wear of third-body particles
	Hu JQ(胡剑桥)1,3; Yuan FP(袁福平)1,3; Liu XM(刘小明)1,3; Wei YG(魏悦广)2
刊名	TRIBOLOGY INTERNATIONAL
	2021-03-01
卷号	155 页码:9
关键词	Third-body nanoparticle Wear mechanism Dislocation plasticity Brittle-to-ductile transition
ISSN号	0301-679X
DOI	10.1016/j.triboint.2020.106739
通讯作者	Liu, Xiaoming(xiaomingliu@imech.ac.cn)
英文摘要	Understanding third-body wear is difficult when the size of the third-body particle reaches nanoscale, because the plasticity produced at the nanoscale exhibits a size effect resulting from the dislocation plasticity in a finite volume. Through molecular dynamics simulations, we observed that dislocation plasticity induces two failure patterns of the third-body wear: brittle failure due to highly localized deformation in mildly compressive particles and ductile failure due to exfoliation-like deformation in severely compressed particles. During the wear process, the deformation of third-body particle shows better ductility as the particle size increases. Due to the highest dislocation plasticity, the wear volume reaches the maximum at the critical compressive strain of -13%. In addition, a size-independent wear rate is observed for the third-body wear.
分类号	一类
资助项目	National Natural Science Foundation of China, Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; Youth Innovation Promotion Association CAS[2018022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501] ; National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology[6142905180110] ; National Natural Science Foundation of China[11802310] ; National Natural Science Foundation of China[11972347] ; National Natural Science Foundation of China[11772334]
WOS关键词	TRIBOLOGICAL PROPERTIES ; NANOPARTICLES ; ADDITIVES ; FRICTION
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000612138000003
资助机构	National Natural Science Foundation of China, Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; Youth Innovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology ; National Natural Science Foundation of China
其他责任者	Liu, Xiaoming
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86130]
专题	力学研究所_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.Peking Univ, Coll Engn, Dept Mech & Engn Sci, Beijing 100871, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
推荐引用方式 GB/T 7714	Hu JQ,Yuan FP,Liu XM,et al. Effect of plasticity on nanoscale wear of third-body particles[J]. TRIBOLOGY INTERNATIONAL,2021,155:9.
APA	胡剑桥,袁福平,刘小明,&魏悦广.(2021).Effect of plasticity on nanoscale wear of third-body particles.TRIBOLOGY INTERNATIONAL,155,9.
MLA	胡剑桥,et al."Effect of plasticity on nanoscale wear of third-body particles".TRIBOLOGY INTERNATIONAL 155(2021):9.