目的：优化电刷镀制备 Ni-Mo 合金镀层工艺,并分析对镀层表面形貌和硬度的影响。方法改变电极相对速度和工作电压,获得不同电刷镀条件下的 Ni-Mo 合金镀层。采用金相显微镜观察镀层的表面形貌,采用显微硬度计测试镀层的显微硬度。结果最佳工艺为：工作电压14 V,电极相对速度11.3 m/ min。镀层光亮致密,显微硬度达到503.90HV。结论适当提高电极相对运动速度、工作电压,能有效改进 Ni-Mo 合金镀层的沉积速度、表面形貌及显微硬度。
Objective To optimize the brush plating technology for the preparation of Ni-Mo alloy coating. Methods Based on orthogonal experiments, Ni-Mo coatings under various conditions were obtained by changing two process parameters, operating volt-age and electrode relative speed. The surface morphology and microhardness of Ni-Mo alloy plating layers were studied using metal-loscope and microhardness tester. Results The optimal parameters of brush plating Ni-Mo alloy were an operating voltage of 14 V and an electrode relative speed of 11. 3 m/ min. The surface of the coating was bright and dense, and the microhardness value was 503. 90HV. Conclusion The research indicated that increasing electrode relative speed or operating voltage could effectively change the deposition rate, surface morphology and microhardness of Ni-Mo alloy coating.
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