研究了化学复合镀镍-磷-金刚石镀层操作条件对复合镀层镀速、复合量及硬度的影响,并对复合镀层的组织和性能进行了分析.结果表明,金刚石颗粒在镀液中部分会被活化,进入复合镀层过程中其表面沉积有镍层.实验得到了镀速20μm/h以上、均匀的Ni-P-金刚石镀层,金刚石的加入对镀速的影响不大.金刚石在镀层中的质量分数主要与金刚石在溶液中含量有关,当金刚石在溶液中含量为20g/L时,其在镀层中质量分数可达15%,硬度可达HV(0.5)500以上,为Ni-P化学镀层硬度的2.5倍左右,且镀层硬度随镀层中金刚石含量增加而增大.复合镀层的耐蚀倾向与Ni-P化学镀层大致相同.
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