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以电化学和络合物化学理论为依据，利用“诱导共沉积”效应，选好合适的络合剂，在金属表面电沉积Ｎｉ－Ｗ及其复合镀层。研究了镀液组成、ｐＨ值、温度和电流密度对Ｎｉ－Ｗ合金层及其复合层电沉积的影响；讨论了热处理温度对非晶态Ｎｉ－Ｗ合金层及其复合层硬度的影响以及非晶态合金镀层的结构和结合力。结果表明：采用适宜的镀液组成和工艺条件，可得到Ｗ含量大于４４％的合金镀层。Ｗ含量大于４４％的合金层及其复合层呈非晶态结构；经热处理后，非晶态合金层的硬度明显增加，含４６％Ｗ的合金层及其复合层的硬度分别可达到１３５０Ｈｖ和１５２０Ｈｖ，在铜、碳钢和不锈钢上的结合力良好。
Based on the chemical and electrochemical theory of complexes, Ni-W and its composite coatings were electrodeposited on the metal surface by the “induced co-deposition” effect. The effects of bath composition, pH value, temperature and current density on the electrodeposition of Ni-W alloy layer and its composite layer were studied. The effect of heat treatment temperature on the hardness of amorphous Ni-W alloy layer and its composite layer was discussed. Structure and Bonding of Crystalline Alloy Coatings. The results show that the alloy coating with W content greater than 44% can be obtained by using proper composition and process conditions. The alloy layer containing more than 44% W and its composite layer were amorphous. The hardness of the amorphous alloy layer increased obviously after heat treatment. The hardness of the alloy layer with 46% W and its composite layer reached 1350Hv and 1520Hv, good bond on copper, carbon steel and stainless steel.