Abstract

The deposition of Co–W(Mo)–Zr ternary alloys on a copper substrate from pyrophosphate–citrate electrolytes in a pulsed mode has been studied. The effect of temperature, electrolyte pH, and current density on the composition, surface morphology, and current efficiency of ternary electrolytic cobalt alloys with refractory metals has been studied. The resulting coatings have a crack-free uniformly developed surface, which provides a fairly high and reproducible microhardness. It has been found that the size of the globules on the alloy surface decreases with an increase in the current density to 10 A/dm². It has been revealed that an increase in temperature favorably affects the current efficiency and microhardness of Co–W–Zr coatings. The modes of electrosynthesis of cobalt–tungsten(molybdenum)–zirconium alloy coatings with a desired level of surface development and microhardness have been substantiated.

中文翻译：

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电解条件对三元钴合金涂层组成和显微硬度的影响

摘要

研究了焦磷酸柠檬酸盐电解质以脉冲方式在铜基体上沉积Co-W（Mo）-Zr三元合金。研究了温度，电解质的pH值和电流密度对含难熔金属的三元电解钴合金的组成，表面形态和电流效率的影响。所得涂层具有无裂纹且均匀显影的表面，该表面提供了相当高且可再现的显微硬度。已经发现，随着电流密度增加到10 A / dm ²，合金表面小球的尺寸减小。。已经发现温度的升高有利地影响了Co-W-Zr涂层的电流效率和显微硬度。已经证实了具有期望的表面发展水平和显微硬度的钴-钨（钼）-锆合金涂层的电合成方式。