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讨论了工艺参数对镀层成份的影响及热处理方式对Ｎｉ－Ｗ－ＳｉＣ复合镀层组织结构、硬度和耐磨性的影响．结果表明，采用电沉积工艺，可得到含Ｎｉ５０～５５％、Ｗ４２～４５．４％、ＳｉＣ３．０～７．６％的复合镀层．ＮｉＷＳｉＣ复合镀层在镀态时为非晶态，经５００℃热处理１ｈ或氮碳共渗后，镀层已晶化，产生了镍固溶体和少量的－ＦｅＮｉ相，经氮碳共渗后还有ＷＣ和ＷＮ相．ＳｉＣ微粒的加入显著地提高了Ｎｉ－Ｗ合金层的硬度和耐磨性．经氮碳共渗后的复合镀层，其硬度和耐磨性优于其它镀层．
The effect of process parameters on the composition of the coating and the effect of heat treatment on the microstructure, hardness and wear resistance of the Ni-W-SiC composite coating were discussed. The results show that the electrodeposition process can be obtained with Ni 55 ~ 55%, W42 ~ 45.4%, SiC3.0 ~ 7.6% of the composite coating. NiWSiC composite coating is amorphous during the plating process. After heat treatment at 500 ℃ for 1h or nitrocarburizing, the coating has been crystallized, resulting in a Ni solid solution and a small amount of -FeNi phase. After nitrocarburizing, WC And WN phase. The addition of SiC particles significantly improves the hardness and wear resistance of the Ni-W alloy layer. After nitrocarburizing composite coating, its hardness and wear resistance than other coatings.