Friction of stable gradient nano-grained metals
Chen, X.1,2; Han, Z.1; Li, X. Y.1; Lu, K.1
Corresponding AuthorChen, X.(
AbstractIn this paper, a novel strategy for lowering the coefficients of friction (COFs) of metals during dry sliding is introduced by producing a gradient nano-grained (GNG) surface layer without changing chemical compositions or phase constitution. Surface morphology variation, subsurface structural evolution and stress field analysis unfold that sliding-induced strain localization and microstructural instabilities are significantly mitigated through dislocation activity and grain boundary activities in the GNG surface layers. In addition, design guidelines for GNG materials with unprecedented low COFs are discussed based on interlinking tribological stress, surface deformation mechanisms and friction behavior. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordGradient nano-grained (GNG) metals Coefficient of friction (COF) Surface roughening Subsurface structure stability Surface deformation mechanism
Funding OrganizationNational Key R&D Program of China ; Key Research Program of Chinese Academy of Sciences ; Liaoning Revitalization Talents Program
Indexed BySCI
Funding ProjectNational Key R&D Program of China[2017YFA0204401] ; National Key R&D Program of China[2017YFA0204403] ; Key Research Program of Chinese Academy of Sciences[KGZDEW-T06] ; Liaoning Revitalization Talents Program[XLYC1808008]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000539115800017
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Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorChen, X.
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Nanjing Univ Sci & Technol, Nano & Heterogeneous Mat Ctr, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
Recommended Citation
GB/T 7714
Chen, X.,Han, Z.,Li, X. Y.,et al. Friction of stable gradient nano-grained metals[J]. SCRIPTA MATERIALIA,2020,185:82-87.
APA Chen, X.,Han, Z.,Li, X. Y.,&Lu, K..(2020).Friction of stable gradient nano-grained metals.SCRIPTA MATERIALIA,185,82-87.
MLA Chen, X.,et al."Friction of stable gradient nano-grained metals".SCRIPTA MATERIALIA 185(2020):82-87.
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