Study on Nanoscale Friction Behavior of TiC/Ni Composites by Molecular Dynamics Simulations

doi:10.3390/coatings12081168

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Study on Nanoscale Friction Behavior of TiC/Ni Composites by Molecular Dynamics Simulations
	Zheng, Min 1; Qu, Dingfeng 1; Zhu, Zongxiao 1; Chen, Weihua 1; Zhang, Zhou 1; Wu, Zhuo 1; Wang, Linjun 1; Ma, Xuezhong 2
刊名	COATINGS
	2022-08-01
卷号	12 期号:8
关键词	TiC Ni composites molecular dynamics TiC nano-friction
DOI	10.3390/coatings12081168
英文摘要	To systematically investigate the friction and wear behavior of TiC/Ni composites under microscopic, the molecular dynamics (MD) method was used to simulate nano-friction on the TiC/Ni composite. Mechanical properties, abrasion depth, wear rates, temperature change of the material during friction, the microscopic deformation behavior, and the evolution of nickel-based titanium carbide microstructure at high-speed friction have been systematically studied. It was found that the variation of tangential and normal forces is related to the relative position of the grinding ball and the TiC phase, when the grinding ball is located above the TiC phase, large fluctuations in the frictional force occur and extreme value of normal force appears, shallow abrasion depth and low wear rate. During the friction process, there is a high-stress area between the grinding ball and the TiC phase, generating a large number of dislocations. The presence of the TiC phase hinders the development and extension of defects, resulting in a significant increase in temperature. At the same time, dislocation entanglement occurs, which improves the wear resistance of the workpiece. In addition, it was also found that the internal atomic motion guided by the carbonized phase was related to the position of the grinding ball relative to the reinforced phase, with the reinforced phase presenting a tendency to rotate in different directions when the grinding ball was in different positions relative to the reinforced phase, which in turn affected the deformation of the whole workpiece.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000846156100001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159804]
专题	机电工程学院石油化工学院
作者单位	1.Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Petr & Chem Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Min,Qu, Dingfeng,Zhu, Zongxiao,et al. Study on Nanoscale Friction Behavior of TiC/Ni Composites by Molecular Dynamics Simulations[J]. COATINGS,2022,12(8).
APA	Zheng, Min.,Qu, Dingfeng.,Zhu, Zongxiao.,Chen, Weihua.,Zhang, Zhou.,...&Ma, Xuezhong.(2022).Study on Nanoscale Friction Behavior of TiC/Ni Composites by Molecular Dynamics Simulations.COATINGS,12(8).
MLA	Zheng, Min,et al."Study on Nanoscale Friction Behavior of TiC/Ni Composites by Molecular Dynamics Simulations".COATINGS 12.8(2022).