Modeling of contact temperatures and their influence on the tribological performance of PEEK and PTFE in a dual-pin-ondisk tribometer  

作　　者：Zhibin LIN Ting QU Ke ZHANG Qingbin ZHANG Shengdao WANG Guibin WANG Bingzhao GAO Guowei FAN 

机构地区：[1]State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130025,China [2]Key Laboratory of High Performance Plastics,Ministry of Education,Jilin University,Changchun 130012,China [3]Clean Energy Automotive Engineering Center,Tongji University,Shanghai 201804,China [4]College of Instrumentation and Electrical Engineering,Jilin University,Changchun 130061,China

出　　处：《Friction》2023年第4期546-566,共21页摩擦（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.62073151);the Jilin Provincial Science&Technology Department(Nos.20200301011RQ and 20210101177JC);the Fundamental Research Funds for the Central Universities(No.22120210160).

摘　　要：The direct blending of polyether ether ketone(PEEK)with a solid lubricant such as polytetrafluoroethylene(PTFE)improves its tribological performance,but compromises its outstanding mechanical properties and processability.While these negative effects might be circumvented via the hybrid wear method,the influence of the contact temperature between multiple sliding components acting together is not fully understood.Herein,an analytical temperature model considering the influence of both micro-and macro-thermal behavior is extended to predict the contact temperature of a dual-pin-on-disk hybrid wear system.The interactions between several heat sources are investigated and experimentally verified.The analytical results show that the nominal temperature rise of the shared wear track is determined by the combined effect of the heat generated by both pin components,while the rise in flash temperature at the region in contact with each pin component is dependent upon its individual characteristics and working conditions.Hence,while different temperature peaks can coexist in the shared wear track,the maximum value dominates the performance of the system.For the experimentally investigated PEEK–PTFE–steel hybrid wear system,the formation of tribofilms is blocked,and the hybrid wear system fails,when the peak temperature exceeds the glass transition temperature of both pins due to an increase in applied load.

关 键 词：contact temperature frictional heating dual-pin-on-disk hybrid wear 

分 类 号：TB332[一般工业技术—材料科学与工程]