The alloy film production of Sn/Ag on steel through heat treatment of stacked single layers was investigated in this study. The specimens used in this investigation were classified into two types. One was tin/silver stacked layered specimen on carbon steels and the other was the same tin/silver stacked layered specimens. However, the copper strike layer between silver and fin layer on steel. For the latter, diffusions of the constituents for the alloy films was inhibited to some extent due to the existence of copper strike layer, which lead to better qualities of product films. As for the alloy films between silver and tin, we confirmed by X-ray Diffraction Analysis that almost the same compounds were formed at each heat treatment temperature. The number of compound layers increased with heat treatment temperatures, while the single element layers disappeared with increasing temperatures. The antibacterial property was investigated and discussed as well as surface color tones, hardness, and corrosion resistance.
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