Effect of air pollution on atmospheric corrosion of zinc

Abstract

The resistance of metals to atmospheric corrosion is of broad interest because of the many structures and products exposed to the air. Atmospheric corrosion phenomena are induced or assisted by different atmospheric pollutants, mainly sulphur dioxide and chloride ions. Corrosion results for zinc obtained over a 3 year period in natural environments are reported. Climatic characteristics showed a significant effect on corrosion behaviour. Experimental data were subjected to statistical treatment and to regression analysis using standard computer programs.