The friction coefficient evolution of a TiN coated contact during sliding wear

被引：85
|
作者：
Ma, Guojia [1 ]
Wang, Liliang [2 ]
Gao, Haoxiang [2 ]
Zhang, Jie [2 ]
Reddyhoff, Tom [2 ]
机构：
[1] Beijing Aeronaut Mfg Technol Res Inst, Sci & Technol Power Beam Proc Lab, Beijing 100024, Peoples R China
[2] Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2AZ, England
来源：
APPLIED SURFACE SCIENCE | 2015年 / 345卷
关键词：
Friction model; TiN coating; Sliding wear; MECHANISMS; COATINGS; THICKNESS; SURFACES; FILMS;
D O I：
10.1016/j.apsusc.2015.03.156
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This paper discussed the friction coefficient evolution of a TiN coated contact during sliding wear. A hard TiN coating was prepared on a bearing steel (GCr15) substrate by applying the composite method of cathode arc and magnetron sputtering. The microstructure, microhardness, microscratch and tribological behaviour of this coating were studied to obtain the relationship between friction coefficient and other coating properties, meanwhile the full friction coefficient evolution curve with different stages during the wear process of TiN coating was shown. It was found that, coating friction and wear, as two interactive responses from a tribo-system, mutually affected each other and should be studied as a single physical phenomenon. Therefore, a novel friction-wear interactive friction model was developed to represent the evolution of friction coefficient and to predict coating breakdown. The results show that the evolution of the friction coefficient curve can reflect different stages of the wear process and the wear life can be estimated using the new friction model. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：109 / 115
页数：7
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