Abstract
A Zinc coating was electroplated in choline chloride-ethylene glycol system at high current density in atmosphere. The crystal structure, surface and cross-section morphologies, chemical elements of electroplated zinc coating were analyzed by x-ray diffraction and scanning electron microscopy with line analysis, respectively. The bending and corrosion performances were also discussed in this study. The results indicate that the zinc coating presents a highly (110) texture with small flake zinc grains stacked on the surface. The zinc coating exhibits well bonding with the copper substrate though no obvious diffusion layer was observed. The corrosion performance of zinc coating displays a combine system of the electrode process and diffusion process without passivation process.
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