Influence of groove surface texture on temperature rise under dry sliding friction  

作　　者：WU Wei SHAO TianMin CHEN GuiMing 

机构地区：[1]State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China [2]Xi'an Research Institute of High Technology, Xi'an 710025, China

出　　处：《Science China(Technological Sciences)》2016年第2期183-190,共8页中国科学（技术科学英文版）

基　　金：supported by the National Basic Research Program of China(Grant No.2012CB934101);the National Natural Science Foundation of China(Grant No.51321092)

摘　　要：Parallel groove surface textures with different area densities were fabricated on ASTM 1045 steel. Friction tests were con- ducted under dry sliding condition. Temperature rise, friction coefficient and wear of both the textured and untextured speci- mens were studied. An embedded K-type thermocouple beneath the friction surfaces was employed to measure frictional tem- perature rise. The results indicated that the temperature rise of the textured specimen was obviously reduced compared with that of the untextured specimen, although the difference between the friction coefficients was not significan.. The specimen with high texture density exhibited a small temperature rise. The difference in temperature rise between the specimens with different texture densities can be primarily attributed to differences in heat dissipation and energy allocation between the tri- bo-pairs caused by the textured structure. The energy consumed by wear and plastic deformation was small in ~：omparison with the total energy input by friction, thus, the influence of these factors on temperature rise can be considered to be~ negligible.

关 键 词：groove surface texture temperature rise heat dissipation WEAR plastic deformation 

分 类 号：TH117[机械工程—机械设计及理论]