摘要
研究了在Ni 2 0Cr合金粉中添加质量分数为 2 0 %MoS2 ,通过热压法制备得到的高温自润滑材料的摩擦学特性 .结果表明 :在高温摩擦过程中 ,材料中的硫化物共晶体是主要的润滑组元 ;材料与淬火W1 8Cr4V和YJ2对偶时的摩擦因数随着温度变化有所不同 ,但是磨损率都是随着温度升高而增大的 ,其高温下磨损形式主要为磨粒磨损 ;
The tribological characteristics of a high temperature self lubricating material, which is made from Ni 20Cr and 20% powders by hot pressing, are studied in detail. It shows that: sulfide eutectics are the major lubricants during high temperature friction process; friction coefficients are different and wear rates increase as temperature rises due to different matches; oxides formed on the surface of YJ2 hardmetal have great effects on the anti friction performances.
出处
《中南工业大学学报》
CSCD
北大核心
2000年第3期260-263,共4页
Journal of Central South University of Technology(Natural Science)
基金
国家自然科学基金资助项目! ( 595710 6 2 )
关键词
粉末冶金
镍合金
高温自润滑材料
摩擦学特性
powder metallurgy
nickel alloy
high-temperature self -lubrication
solid lubrication
