The Impact of Zinc Coating Specifications on Corrosion Resistance аnd Durability of Steels

Abstract

The article contains the findings on impact of zinc coating specifications on corrosion resistance and service life of steels of various chemical composition used often in modern industries. Characteristics such as type, class, chemical compound and thickness of zinc-based coatings are also addressed. Experiments were performed in which corrosion rate and useful life of zinc coatings in probable operating-like conditions — i.e., in environments of varying degrees of corrosive power (humid and high-chloride environments) were determined. It has been established which one of the environments is the most corrosive for steels depending on the zinc-based coatings’ specifications. Qualitative (visual) and quantitative (gravimetric) assessment of corrosion resistance and service life of chosen steels is presented. Optimal hot dip galvanized coating specifications were determined using statistical analysis.

Influence of soil chemical characteristics on corrosion behaviour of galvanized steel

“…The corrosion behaviour of galvanized steel in atmospheric environment has been deeply studied over the years [1][2][3][4], due to the high efficiency of zinc coating in improving the corrosion resistance of steel products in aggressive environments [5][6][7][8]. Thus, the galvanized steel is often employed in architectural, infrastructural and automotive applications.…”