Zinc-aluminum alloys was electrodeposited on mild steel from non-cyanide chloride bath at current density 3-3.5 A/dm2, plating voltage ~ 1.25 V, temperature 18-20oC, for fifteen minutes. The effects of aluminum chloride on the rest potentials of golden, colorless and non-chromated zinc-aluminum alloys deposits were observed. It was found that rest potentials was slightly increased with the increase concentration of aluminum chloride, only in case of golden chromating. The rest potential of colorless chromated zinc-aluminum deposited on mild steel have no correlation with aluminum chloride concentration. The abrasion resistance of colorless chromated zinc-aluminum mild steel plates was better than golden chromating.
I U HAQUE ,A KHAN ,N AHMAD ,
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