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首页> 外文期刊>International Journal of Electrochemical Science >Preparation of Fe-Co-Ni Ternary Alloys with Electrodeposition
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Preparation of Fe-Co-Ni Ternary Alloys with Electrodeposition

机译：电沉积制备Fe-Co-Ni三元合金

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Electrodeposition of Fe-Co-Ni ternary alloys was performed in a chloride-sulphate-tartaric acidmedium. The influences of electroplating parameters such as current density, temperature, pH valueand electrolyte composition on depositing rate, compositions of Fe-Co-Ni deposits andelectrodepositing behavior on titanium substrate were investigated. The composition, morphology andthe microstructure of deposits were analyzed by EDS, SEM and XRD, respectively. The resultsindicated that the optimum conditions for obtaining Co-rich Fe-Co-Ni alloys were current density of 42 A/dm , temperature of 40 pH of 2.3-3.2, tartaric acid concentration of 8-12 g/l, Co2Ni 2molarratio of 0.26-0.4. The codeposition of Fe-Co-Ni alloy is anomalous; namely Fe is more easilydeposited than Co, and Co is easily deposited than Ni. However, the deposition order of Fe and Co isaffected by temperature and Co2Ni 2ratio. The Fe-Co-Ni ternary alloys with 15.62-20.56% of Fe,43.84-61.93% of Co, 22.45%-40.05% of Ni were bright and super toughness with low residual stress.The SEM showed that fine-grain, smooth and compact Fe-Co-Ni alloy deposits were obtained. Thecrystallographic structure of the deposit was the bcc solid solution.
机译：Fe-Co-Ni三元合金的电沉积是在氯化物-硫酸盐-酒石酸介质中进行的。研究了电流密度，温度，pH值，电解液成分等电镀参数对钛基体上沉积速率，Fe-Co-Ni沉积物组成和电沉积行为的影响。分别用EDS，SEM和XRD分析了沉积物的组成，形貌和微观结构。结果表明，获得富Co-Co-Ni合金的最佳条件是电流密度为42 A / dm，温度为40的pH为2.3-3.2，酒石酸浓度为8-12 g / l，Co2Ni 2摩尔比为0.26。 -0.4。 Fe-Co-Ni合金的共沉积是反常的;即，Fe比Co容易沉积，并且Co比Ni容易沉积。然而，Fe和Co的沉积顺序受温度和Co 2 Ni 2比的影响。 Fe-Co-Ni三元合金具有15.62-20.56％的Fe，43.84-61.93％的Co，22.45％-40.05％的Ni且具有高韧性，且残余应力低。获得致密的Fe-Co-Ni合金镀层。沉积物的晶体结构为密闭cc固溶体。

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