铜基粉末冶金摩擦材料高温摩擦疲劳性能测试  

Frictional fatigue property test of copper based powder metallurgy frictional material at high temperature

作　　者：刘建秀[1] 高红霞[1] 韩长生[2] 李蔚[1] 

机构地区：[1]郑州轻工业学院机电学院,河南郑州450002 [2]中国工程物理研究院流体物理所爆轰与冲击波物理实验室,四川绵阳621900

出　　处：《机械设计》2004年第4期24-27,共4页Journal of Machine Design

基　　金：中国工程物理研究院基金资助项目 (42 1 0 1 0 2 0 1 ) ;河南省杰出青年基金资助项目 ;河南省重点攻关基金资助项目 (0 32 30 2 390 0 0 )

摘　　要：在高温摩擦疲劳试验机上对铜基粉末冶金材料进行了性能测试。发现 :(1)在 10 0℃～ 3 5 0℃区间 ,随温度的升高 ,摩擦因数在降低 ;(2 )在 5 0 0℃时 ,摩擦因数最高 ,且发生了粘着磨损 ;(3 )在 45 0N ,3 0 0℃时 ,磨痕表面出现了球状的石墨颗粒层 ,这起到了极好的润滑作用 ,使得 3 0 0℃时 ,磨损较低。Property test of copper based powder metallurgy material was carried out on high temperature frictional fatigue-testing machine. It has been discovered that (1) in the region between 100 ℃～350 ℃ the friction coefficient is lowering along with the rising of temperature; (2) the friction coefficient is the highest at the temperature of 500 ℃, and adhesive wear occurred; (3) the global graphite grain layer appeared at the surface of wear scar at 450 N and 300 ℃, and played an extremely good effect of lubrication, thus makes a fairly lower wear at the temperature of 300 ℃.

关 键 词：铜基粉末冶金材料 摩擦材料 摩擦 磨痕 磨损 性能测试 疲劳 

分 类 号：TF125.9[冶金工程—粉末冶金]