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Ni Cr based alloys with a wide temperature range self lubrication were made by hot pressing the mixture powder of alloyed Ni Cr powder, elemental Mo, Al, Ti and B powders and MoS 2 powder. The mechanical and tribological properties of these alloys when rubbing with Al 2O 3 ceramics and W18Cr4V high speed steel were measured in the temperature range of 20～700 ℃, and the mechanisms of self lubrication and wear resistance were studied. The results showed that the alloy containing 10% MoS 2 has the best combination of mechanical properties, antifriction and wear resistance. Over a wide temperature range from 20 ℃ to 700 ℃, when rubbing with Al 2O 3, its friction coefficient and wear rate are 0.19～0.3 and (1.1～1.5)10 -14 m 3/(N·m), respectively; when rubbing with the high speed steel, those values are 0.18 ～ 0.26 and (0.6～3.2)×10 -15 m 3/(N·m), respectively.
Ni Cr based alloys with a wide temperature range self lubrication were made by hot pressing the mixture powder of alloyed Ni Cr powder, elemental Mo, Al, Ti and B powders and MoS 2 powder. The mechanical and tribological properties of these alloys when rubbing with Al 2 O 3 ceramics and W18Cr4V high speed steel were measured in the temperature range of 20 ~ 700 ° C, and the mechanisms of self lubrication and wear resistance were studied. The results showed that the alloy containing 10% MoS 2 has the best combination of mechanical The friction coefficient and wear rate are from 0.19 to 0.3 and (1.1 to 1.5) 10 to 14 m 3 / (N When rubbing with the high speed steel, those values are 0.18 to 0.26 and (0.6 to 3.2) × 10 -15 m 3 / (N · m), respectively.