ELECTRODEPOSITION OF AMORPHOUS Ni-P ALLOY COATINGS
来源期刊：中国有色金属学报(英文版)1997年第3期
论文作者：Fang Zhaoheng
文章页码：149 - 152
Key words：electrodeposition； amorphous alloy coating； nickel phosphorus
Abstract: A process to produce amorphous Ni P alloy coatings from nickel sulfate and hypophosphite bath by electrodeposition was investigated. The influence of the concentration of phosphorous and pH in the bath, the plating temperature and the organic additives ware determined. The X ray energy dispersive spectroscopy (EDAX) was used to evaluate the composition of the alloy coatings. The alloy coatings containing over 10%～12% P(mole percent) were distinguished to be amorphous by X ray diffraction, they were found to have better corrosion resistance than the conventional Ni Cr stainless steel in 5% HCl, H2SO4, NaCl and NaOH solutions. The effective mechanism of organic surfactants was studied by voltammetry on a copper rotating disk electrode.
