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利用化学复合镀技术制备了Ni-P-SiC复合镀层,研究了镀层的表面形貌、组织、显微硬度等性能,并对比研究了不同配副材料对Ni-P-SiC复合镀层和Ni-P镀层摩擦磨损性能的影响。结果表明,Ni-P-SiC复合镀层的显微硬度较Ni-P镀层有所提高;与GCr15钢球对磨时,Ni-P-SiC复合镀层发生严重的塑性变形和粘着磨损,但磨损率比Ni-P镀层稍有降低;与Si3N4陶瓷球对磨时,两者的磨损率相当,且均比与GCr15球对磨时小1个数量级,其主要磨损机理为磨粒磨损。配副材料的磨损率变化规律与镀层一致。在一定条件下,陶瓷材料与Ni-P镀层或Ni-P-SiC复合镀层是较匹配的摩擦副。
Ni-P-SiC composite coatings were prepared by chemical composite plating technology, and the surface morphology, microstructure and microhardness of the coatings were studied. The effects of Ni-P-SiC composite coatings and Ni- P coating friction and wear properties. The results show that the microhardness of Ni-P-SiC composite coating is higher than that of Ni-P coating. The wear resistance of Ni-P-SiC composite coating is seriously plastic deformation and adhesion when it is ground with GCr15 steel ball. Which is slightly lower than that of Ni-P coating. The wear rate of Si3N4 ceramic balls is comparable to that of Si3N4 balls, both of them are one order of magnitude smaller than that of GCr15 balls. The main wear mechanism is abrasive wear. With the vice material wear rate changes consistent with the coating. Under certain conditions, the ceramic material and Ni-P coating or Ni-P-SiC composite coating is a matching friction pair.