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采用化学复合镀工艺,在碳钢表面制备了Ni-P-MoS2和Ni-P-CaF2复合镀层,并对镀层进行热处理.本课题主要对两种复合镀层在高温时的摩擦磨损性能进行对比分析,并将其与Ni-P镀层的摩擦磨损性能进行比对,讨论工作温度对复合镀层摩擦磨损性能的影响,并阐述了镀层在不同温度下的磨损机理.结果表明:当温度从常温升至500℃左右时,Ni-P-MoS2复合镀层的摩擦学性能较优,Ni-P-CaF2复合镀层和Ni-P镀层次之,Ni-P-MoS2复合镀层在高温摩擦磨损时表面生成一层致密的氧化膜起到很好的减摩作用.
The composite coating of Ni-P-MoS2 and Ni-P-CaF2 was prepared on the surface of carbon steel by chemical composite plating process and the coating was heat-treated.This subject mainly contrasted the friction and wear properties of the two composite coatings at high temperature The friction and wear properties of Ni-P coatings were compared and the influence of working temperature on the friction and wear properties of the composite coatings was discussed, and the wear mechanism of the coatings at different temperatures was described.The results showed that when the temperature increased from normal temperature to The tribological properties of Ni-P-MoS2 composite coating are better than that of Ni-P-MoS2 composite coating, followed by Ni-P-CaF2 composite coating and Ni-P coating. When Ni-P-MoS2 composite coating is rubbed and worn at high temperature, Dense oxide film play a very good anti-friction effect.