Effects of Service Condition on Rolling Contact Fatigue Failure Mechanism and Lifetime of Thermal Spray Coatings--A Review

• Published in: Chinese journal of mechanical engineering 2015, Vol.28 (1), p.132-139
• Main Authors: Cui, Huawei, Cui, Xiufang, Wang, Haidou, Xing, Zhiguo, Jin, Guo
• Format: Article
• Language: English
• Subjects: Coatings; Contact; Contact stresses; Crack propagation; Design engineering; Design optimization; Design parameters; Electrical Machines and Networks; Electronics and Microelectronics; Engineering; Engineering Thermodynamics; Failure mechanisms; Fatigue failure; Heat and Mass Transfer; Instrumentation; Integrity; Lubrication; Machines; Manufacturing; Mechanical Engineering; Power Electronics; Processes; Rolling contact; Slip; Spray coating; Theoretical and Applied Mechanics; Thermal resistance; 参数优化设计; 失效机理; 接触疲劳寿命; 服务; 涂层材料; 滚动接触疲劳; 热喷涂涂层; 结构完整性
• ISSN: 1000-9345; 2192-8258
• DOI: 10.3901/CJME.2014.0825.140

The service condition determines the Roiling Contact Fatigue（RCF） failure mechanism and lifetime under ascertain material structure integrity parameter of thermal spray coating. The available literature on the RCF testing of thermal spray coatings under various condition services is considerable; it is generally difficult to synthesize all of the result to obtain a comprehensive understanding of the parameters which has a great effect on a thermal spray coating＇s resistance of RCF. The effects of service conditions（lubrication states, contact stresses, revolve speed, and slip ratio） on the changing of thermal spray coatings＇ contact fatigue lifetime is introduced systematically. The effects of different service condition on RCF failure mechanism of thermal spray coating from the change of material structure integrity are also summarized. Moreover, In order to enhance the RCF performance, the parameter optimal design formula of service condition and material structure integrity is proposed based on the effect of service condition on thermal spray coatings＇ contact fatigue lifetime and RCF failure mechanism. The shortage of available literature and the forecast focus in future researches are discussed based on available research. The explicit result of RCF lifetime law and parameter optimal design formula in term of lubrication states, contact stresses, revolve speed, and slip ratio, is significant to improve the RCF performance on the engineering application.