Atmospheric corrosion model for galvanized steel structures.
Spence-JW; Haynie-FH; Lipf-FW; Cramer-SD; McDonald-LG
Corrosion 1992 Dec; 48(12):1009-1019
This report develops a model for predicting the corrosion of galvanized steel structures based on two competing mechanisms: the formation and dissolution of the basic zinc-carbonate film that forms on zinc surfaces. The model consists of a diffusivity term that describes film growth and a dissolution term that describes the rate of film removal. The field data used in this evaluation were consistent with corrosion rates predicted by the model, within the limits of uncertainty of the environmental data.
Models; Metallurgy; Metallurgical processes; Metals; Zinc; Zinc and compounds;
Author Keywords: atmospheric corrosion model; carbon dioxide; galvanized steel; rain acidity; sulfur dioxide; wet and dry acidic deposition
J.W. Spence, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711