Study of the Effects of Dry and Wet Deposition on Galvanized Steel and Weathering Steel: A Three Year Field Exposure

摘要

At an exposure site located at the Research Triangle Park, NC, an automatic covering device was installed to partition the effects of dry and wet deposition on the corrosion of galvanized steel and weathering steel samples. Weight loss was used as the measure of corrosion of both metals. Meteorological parameters and air quality were recorded continuously during the 36-month exposure study and evaluated to eliminate errors and to estimate missing data. Models were derived to describe the corrosion of galvanized steel and weathering steel. Rainfall was found to be a significant factor for the corrosion of both metallic materials.