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Fast mobility induced self-lubrication at metallic glass surface
Lu, Yumiao1,2,3,4,5; Liu, Xiaodi6; Sun, Baoan1; Cao, Chengrong1; Pan, Mingxiang1,4,7; Liu, Chain Tsuan3; Wang, Weihua1,2,7; Yang, Yong3; Bai, Haiyang1,2,7
2021-04-28
Source PublicationJOURNAL OF APPLIED PHYSICS
ISSN0021-8979
Volume129Issue:16Pages:8
AbstractThe enhanced surface mobility in metallic glasses (MGs) has been a constant source of fascination due to its unique mechanical properties. We show experimentally that the mobile surface layer of MGs functions as a lubricating layer in friction experiments, which is evidenced by a reduction of a friction coefficient of 50% or less and suppression of dissipative stick-slip behavior with decreasing scratch depth down to nanoscale in the various MGs. The lubrication mechanism could be attributed to easier shearing of the mobile surface layer induced by homogeneous plastic flow. Importantly, the thickness of the self-lubricating layer is inversely proportional to glass transition temperature with a higher homologous temperature yielding a larger thickness. These results extend the fundamental understanding of the ubiquitous MG surface and present a path for the rational design of self-lubricating materials.
DOI10.1063/5.0042222
Language英语
WOS KeywordPLASTIC-FLOW ; SHEAR-BAND ; DEFORMATION ; DYNAMICS ; INSTABILITY ; REDUCTION ; FRICTION
Funding ProjectNSF of China (NSFC)[51671211] ; NSF of China (NSFC)[21908221] ; NSF of China (NSFC)[51571209] ; NSF of China (NSFC)[51461165101] ; Key Research Program of Frontier Sciences, CAS[QYZDYSSW-JSC017] ; Research Grant Council (RGC) ; Hong Kong Government, through the General Research Fund (GRF)[CityU11207215] ; RGC-NSFC joint fund[N_CityU116/14]
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
Funding OrganizationNSF of China (NSFC) ; Key Research Program of Frontier Sciences, CAS ; Research Grant Council (RGC) ; Hong Kong Government, through the General Research Fund (GRF) ; RGC-NSFC joint fund
WOS IDWOS:000669432600002
PublisherAMER INST PHYSICS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49321
Collection中国科学院过程工程研究所
Corresponding AuthorPan, Mingxiang; Yang, Yong; Bai, Haiyang
Affiliation1.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
3.City Univ Hong Kong, Dept Mech & Biomed Engn, Ctr Adv Struct Mat, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China
4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Beijing Key Lab Ionic Liquids Clean Proc, State Key Lab Multiphase Complex Syst, CAS Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China
6.Shenzhen Univ, Coll Mechatron & Control Engn, Shenzhen, Peoples R China
7.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Lu, Yumiao,Liu, Xiaodi,Sun, Baoan,et al. Fast mobility induced self-lubrication at metallic glass surface[J]. JOURNAL OF APPLIED PHYSICS,2021,129(16):8.
APA Lu, Yumiao.,Liu, Xiaodi.,Sun, Baoan.,Cao, Chengrong.,Pan, Mingxiang.,...&Bai, Haiyang.(2021).Fast mobility induced self-lubrication at metallic glass surface.JOURNAL OF APPLIED PHYSICS,129(16),8.
MLA Lu, Yumiao,et al."Fast mobility induced self-lubrication at metallic glass surface".JOURNAL OF APPLIED PHYSICS 129.16(2021):8.
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