Surface characteristics of steel systems effect to hot dip galvanized coatings

In this work, first, we researched which elements in steel (C, Mn, P, Si, S, Al etc.) affect galvanized coatings. Many different steel sheets are applied on some pre-treatments then dipped in liquid zinc. After we dipped, we looked at galvanized coatings whether affected or not. Effections of chemical baths compositions, passivation,temperature of liquid zinc bath, cooling speed researched by us. Our other experiments are mechanical processes which we applied on steel sheets to see coatings properties whether changed or not. The steel sheets dipped into acid then shined, grinded and sanded surfaces. According to mechanical test results, we compared with uncoated steel sheets and coated sheets. In liquid zinc bath, we could add Pb, Al, Fe, Sn, Ni, Bi elements. We researched which elements affected on to the galvanized coatings.Key Words: Hot-Dip Galvanized Coating, Surface Coating, Corrosion, Zinc