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Electrodeposition of Zn-Fe Alloy from an Acid Sulfate Bath Containing Triethanolamine

机译:含三乙醇胺的硫酸盐浴中锌铁合金的电沉积

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摘要

Electrodeposition of Zn-Fe alloy from an acid sulfate bath containing triethanolamine (TEA) under optimized plating conditions, such as pH, temperature, stirring, current density, and metal ion ratios in the bath, the TEA concentration produced desired alloy compositions of 15-20 wt percent of Fe. An alloy of this composition exhibited superior corrosion resistance, high hardness, and a smooth, uniform, fine-grained deposit, with improved cathodic current efficiency. An alloy containing more than 40 wt percent Fe showed good paintability characteristics. The structure of the electrodeposited alloy is correlated with electrochemical properties. The mechanism of alloy deposition is discussed.
机译:在优化的电镀条件(例如pH,温度,搅拌,电流密度和金属离子比率)下,从含有三乙醇胺(TEA)的酸性硫酸盐浴中电沉积Zn-Fe合金,TEA浓度可产生所需的15-铁的20重量%。这种组成的合金表现出优异的耐腐蚀性,高硬度以及光滑,均匀,细颗粒的沉积物,并具有改善的阴极电流效率。含铁量超过40%(重量)的合金具有良好的可涂性。电沉积合金的结构与电化学性能有关。讨论了合金沉积的机理。

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