摘要
采用压挤渗透工艺制备了新型碳纤维毡增强铝基复合材料 ,在 MG- 2 0 0 0型高速高温摩擦磨损试验机上考察了其摩擦磨损特性 .结果表明 :碳纤维毡增强铝基复合材料的摩擦磨损特性明显优于基体合金 ;复合材料经历由稳定磨损向严重磨损的转化 ;在稳定磨损阶段 ,复合材料的磨损表面存在由金属氧化物和碳膜共同构成的复合固体润滑膜 。
Carbon fiber felt reinforced aluminum matrix composites were prepared by means of squeeze infiltration process. The friction and wear behavior of the composites sliding against 5CrNiMo alloy was examined on an MG 2000 high speed and high temperature test rig in a pin on disc configuration. The morphology and structure of the carbon fiber felt and the morphologies of the worn surfaces of the composite and the matrix alloy were observed with a scanning electron microscope. The morphologies of the wear debris of both the composite and the matrix alloy were examined with a scanning electron microscope as well. As the results, the composites show better wear resistance and lower friction coefficient than the matrix alloy. This is attributed to the generation of a composite solid lubricating film composed of metal oxide and carbon film on the worn surfaces. The composites experienced a transition from steady state wear to severe wear.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2001年第6期448-451,共4页
Tribology
关键词
碳纤维毡
铝基复合材料
摩擦磨损性能
carbon fiber felt
aluminum matrix composites
friction and wear behavior
