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Effect of plasticity on nanoscale wear of third-body particles

文献类型：期刊论文

作者Hu, Jianqiao2,3; Yuan, Fuping2,3; Liu, Xiaoming2,3; Wei, Yueguang1; Wei YG(魏悦广); Yuan FP(袁福平); Liu XM(刘小明)
刊名TRIBOLOGY INTERNATIONAL
出版日期2021-03-01
卷号155页码:9
ISSN号0301-679X
关键词Third-body nanoparticle Wear mechanism Dislocation plasticity Brittle-to-ductile transition
DOI10.1016/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.
WOS关键词TRIBOLOGICAL PROPERTIES ; NANOPARTICLES ; ADDITIVES ; FRICTION
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
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
通讯作者Liu, Xiaoming
作者单位1.Peking Univ, Coll Engn, Dept Mech & Engn Sci, Beijing 100871, 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, Jianqiao,Yuan, Fuping,Liu, Xiaoming,et al. Effect of plasticity on nanoscale wear of third-body particles[J]. TRIBOLOGY INTERNATIONAL,2021,155:9.
APA Hu, Jianqiao.,Yuan, Fuping.,Liu, Xiaoming.,Wei, Yueguang.,魏悦广.,...&刘小明.(2021).Effect of plasticity on nanoscale wear of third-body particles.TRIBOLOGY INTERNATIONAL,155,9.
MLA Hu, Jianqiao,et al."Effect of plasticity on nanoscale wear of third-body particles".TRIBOLOGY INTERNATIONAL 155(2021):9.

入库方式： OAI收割

来源：力学研究所

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