采用化学复合镀的方法在AZ91D镁合金表面制备了Ni-P-SiC复合镀层,对其组织与相结构进行了SEM及XRD分析,并进行了电化学与磨损试验.结果表明:制备得到了均匀、致密、无明显缺陷的Ni-P-SiC复合镀层,SiC颗粒在镀层中分布均匀;复合镀层为非晶态结构,硬度高达643HV;复合镀层具有明显的钝化区,耐腐蚀性能优异,其耐磨性明显优于Ni-P镀层的.
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