We established the chemical composition, current efficiency, and corrosion properties of CoW and CoRe binary alloys and CoWRe ternary alloys obtained from electrolytes of two types: citrate and citrate-pyrophosphate. It was discovered that the alloys deposited from citrate electrolyte contain much more refractory metals [51.0 at.% Re and 46.2 (W + Re)] for the same current density of deposition (10 mA ⋅ cm^–2) than the alloys deposited from citrate pyrophosphate electrolytes [13.5 at.% Re and 23.9 at.% (W + Re)]. The main advantage of application of citrate-pyrophosphate electrolytes is their high current efficiency (of up to 85.7%). The results of corrosion investigations carried out in a 3.5% NaCl solution show that the corrosion resistance of CoWRe alloys is higher than the corrosion resistance of CoRe alloys. Actually, they are equal to 3.2 and 2.8 k Ω ⋅ cm² for citrate electrolytes and 5.4 and 3.6 k Ω ⋅ cm² for citrate-pyrophosphate electrolytes, respectively. The corrosion resistances of the coatings depend on their phase compositions, in particular, on the formation of a solid solution of rhenium in cobalt for the CoRe alloy and appearance of a nanocrystalline coating for the CoWRe alloy.

我们确定了从两种类型的电解质中获得的 CoW 和 CoRe 二元合金以及 CoWRe 三元合金的化学成分、电流效率和腐蚀性能：柠檬酸盐和柠檬酸盐 - 焦磷酸盐。结果发现，对于相同的沉积电流密度 (10 mA ⋅ cm ^–2) 比从柠檬酸焦磷酸盐电解质沉积的合金 [13.5 at.% Re 和 23.9 at.% (W + Re)]。柠檬酸盐-焦磷酸盐电解质应用的主要优点是它们的高电流效率（高达 85.7%）。在 3.5% NaCl 溶液中进行的腐蚀研究结果表明 CoWRe 合金的耐蚀性高于 CoRe 合金的耐蚀性。实际上，对于柠檬酸盐电解质，它们等于 3.2 和 2.8 k Ω ⋅ cm ²以及 5.4 和 3.6 k Ω ⋅ cm ²分别用于柠檬酸盐-焦磷酸盐电解质。涂层的耐腐蚀性取决于它们的相组成，特别是对于 CoRe 合金铼在钴中的固溶体的形成和 CoWRe 合金纳米晶涂层的外观。