摩擦接触表面温度测量技术研究进展  

Research Progress on Temperature Measurement Technology of Friction Contact Surfaces

作　　者：杨现臣 李新梅[1] YANG Xianchen;LI Xinmei(School of Mechanical Engineering,Xinjiang University,Urumqi 830000,China)

机构地区：[1]新疆大学机械工程学院,乌鲁木齐830000

出　　处：《材料导报》2022年第12期162-170,共9页Materials Reports

基　　金：国家自然科学基金(51865055);新疆自治区天山英才计划资助项目(201720025)。

摘　　要：摩擦表面温升影响着材料表面物理、化学、力学性能,导致关键零部件加速失效,因此掌握摩擦接触表面温度信息对于材料摩擦特性、磨损机制研究及实际工程应用意义重大。目前研究者已结合粗糙表面微接触混合弹塑性理论、分形理论建立了多种接触模型,用于不同工况环境下的接触面热力学分布及闪温的计算。但摩擦温度取决于载荷、速度、环境、摩擦副材料等多种因素,接触面微凸体的不规则分布、滑动过程中接触特性以及材料参数的动态变化使理论计算的发展受到阻碍。近年来,测量技术的发展使研究者可更进一步掌握磨面温度信息。本文总结、梳理了适用于摩擦接触表面测温的多种技术,包括:常用的传统热电偶、红外辐射测温技术,新型的超声波测温、可摩擦式热电偶及薄膜热电偶测温技术,用于事后检测的金相结构法、氪化法等测温技术。介绍了这些测温技术的基本原理,综述了各技术在摩擦接触表面温度测量的研究现状及适用范围。分析讨论了目前各技术在摩擦界面测温中存在的问题及优劣势,最后提出了摩擦接触表面测温技术存在的挑战并对其未来发展方向进行了展望。The temperature rise of friction surface affects the physical,chemical and mechanical properties of material surface,which leads to accelerated failure of key components.Therefore,temperature information of friction contact surface is of great significance for research of friction characteristics,wear mechanism and practical engineering application.At present,researchers have established a variety of contact models based on the mixed elastoplastic theory and fractal theory on rough surface,which can be used to calculate the thermodynamic distribution and flash temperature under different working conditions.However,the friction temperature depends on load,speed,environment and friction pair materials and other factors.Furthermore,the irregular distribution of asperities and dynamic changes of contact characteristics hinder the development of theoretical analysis.With the development of measurement technology,researchers have a better understanding of the friction surface temperature.In this paper,a variety of temperature measurement technologies of friction contact surface are summarized,including traditional methods like thermocouple and infrared radiation,new methods such as ultrasonic technology,grindable thermocouple and thin film thermocouple,and methods for post detection like metallographic structure and kryptonization.The research status and application scope of each technology are illuminated.The problems,advantages and disadvantages of the current technologies in the temperature measurement of the friction surface are discussed.Meanwhile,the challenges of temperature measurement technology of friction contact surface are put forward and the future development direction is prospected.

关 键 词：温度测量 闪点温度 热电偶 超声波测温 

分 类 号：TG115[金属学及工艺—物理冶金]