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 ;YJ2硬质合金表面生成的氧化物对材料减摩性能有很大影响 The tribological properties of high temperature self-lubricating materials prepared by hot-pressing were studied in Ni 2 0Cr alloy powder with 20% MoS 2. The results show that during the high-temperature friction process, the sulfide eutectic Is the main lubrication component; the friction coefficient of the material with quenching W1 8Cr4V and YJ2 varies with temperature, but the wear rate increases with the increase of temperature, and its wear form is mainly grinding Grain wear; oxides formed on the YJ2 carbide surface have a significant effect on the anti-friction properties of the material