Molecular dynamics study on the nanoscale repeated friction and wear mechanisms of TiC/Ni composites

doi:10.1007/s00339-022-05414-2

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	Molecular dynamics study on the nanoscale repeated friction and wear mechanisms of TiC/Ni composites
	Zheng, Min; Qu, Dingfeng; Wei, Xingchun; Zhang, Zhou; Zhu, Zongxiao; Wang, Linjun; Chen, Weihua
	2022-04
发表期刊	Applied Physics A: Materials Science and Processing
ISSN	0947-8396
卷号	128 期号:4
摘要	In this study, the molecular dynamics method was used to simulate the process of repeated friction of TiC/Ni composites under a hard diamond grinding ball and the mechanical properties of abrasion depth and morphology, wear rate, atomic displacement, internal defect evolution, and temperature, were systematically investigated during multiple friction processes. It was found that when the action of the grinding ball on the workpiece is transmitted to the TiC phase, extreme value of friction force appears, the depth of the abrasion marks is shallow, the number of atoms in the workpiece that undergo large displacements is low, the atoms exhibit a tendency to bypass the TiC phase for displacement, and the TiC is subjected to external action energy, which leads to an increase in temperature and discontinuity in the workpiece temperature distribution. During repeated friction processes, the friction force reaches a maximum, the friction coefficient fluctuates drastically, the increment in the abrasion depth decreases, the large structural defects generated by initial friction events are decomposed into small structural defects or stable laminar dislocation tetrahedral structures leading to the formation of dislocation entanglement which improves the overall wear resistance of the workpiece, the temperature of the TiC increases rapidly, and the temperature difference compared to the substrate gradually increases. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
关键词	Abrasion Atoms Defects Friction Grinding (machining) Morphology Nickel Nickel compounds Titanium carbide Wear resistance Dynamic studies Friction and wear Friction force Friction mechanism Friction process Grinding balls Nano scale Nickel-based composites Structural defect Workpiece
DOI	10.1007/s00339-022-05414-2
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000768287800004
出版者	Springer Science and Business Media Deutschland GmbH
EI入藏号	20221111790530
EI主题词	Molecular dynamics
EI分类号	548.1 Nickel ; 604.2 Machining Operations ; 801.4 Physical Chemistry ; 804.2 Inorganic Compounds ; 931.2 Physical Properties of Gases, Liquids and Solids ; 931.3 Atomic and Molecular Physics ; 951 Materials Science
来源库	WOS
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/157971
专题	机电工程学院
通讯作者	Zhu, Zongxiao
作者单位	Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Zheng, Min,Qu, Dingfeng,Wei, Xingchun,et al. Molecular dynamics study on the nanoscale repeated friction and wear mechanisms of TiC/Ni composites[J]. Applied Physics A: Materials Science and Processing,2022,128(4).
APA	Zheng, Min.,Qu, Dingfeng.,Wei, Xingchun.,Zhang, Zhou.,Zhu, Zongxiao.,...&Chen, Weihua.(2022).Molecular dynamics study on the nanoscale repeated friction and wear mechanisms of TiC/Ni composites.Applied Physics A: Materials Science and Processing,128(4).
MLA	Zheng, Min,et al."Molecular dynamics study on the nanoscale repeated friction and wear mechanisms of TiC/Ni composites".Applied Physics A: Materials Science and Processing 128.4(2022).

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