C/C复合材料的摩擦磨损行为研究  

Study on friction and wear behavior of C/C composites

作　　者：章丹亭 刘莹[1] 殷艳飞[1] 刘小龙[1] 

机构地区：[1]南昌大学机电工程学院,江西南昌330031

出　　处：《南昌大学学报（工科版）》2015年第1期38-41,47,共5页Journal of Nanchang University(Engineering & Technology)

基　　金：江西省科技合作计划资助项目(2014BDH80021);江西省教育厅科技计划资助项目(12716);江西省研究生创新基金资助项目(YC2014-S017)

摘　　要：利用HIT-1型球盘式摩擦磨损试验台,以C/C复合材料与GCr15钢为配副进行摩擦磨损实验。研究了C/C复合材料的摩擦系数与时间、载荷和速度的关系,分析了工况环境对摩擦系数的影响,获得了磨损量与载荷和速度的相关关系。结果表明:C/C复合材料的摩擦系数在摩擦磨损初期减小,随后在较小区间内平稳波动;摩擦系数在不同载荷条件下随速度变化趋势不同,当载荷为8 N时摩擦特性随速度变化最稳定,速度为0.576 m/s时摩擦特性随载荷变化最稳定;不同试验环境中摩擦性能呈现规律不同;C/C复合材料摩擦磨损过程中磨损率随速度缓慢增大,随载荷缓慢增大。Using HIT-1 ball and disc sliding wear tester to finish the friction and wear tests of C / C composites coupled with GCr15 steel. The impact of time,load,velocity and working environment on friction coefficient of C /C composites have been analyzed. The relationship between wear properties with load and velocity has been obtained. Result showed that C / C composites have stable friction coefficient,friction coefficient reduced at the initial stage,and then tended towards stability in a short range. The friction coefficient performed differently with changeable load. Load equaled with 8 N,friction coefficient performed best with the changeable velocity. When velocity equaled with 0. 576 m / s,friction coefficient performed best with the changeable load. In different working condition,frictional behavior of C / C composites were different. Besides,with revolving speed and load increasing,the mass wear increases slowly.

关 键 词：C/C复合材料 摩擦系数 摩擦磨损性能 工况环境 

分 类 号：TH117.1[机械工程—机械设计及理论]