In this work, the type and level of strain are related to the degree of corrosion resistance and the type of coating damage for three coatings: 40 gm/m2 electrogalvanized steel, 80 gm/m2 electrogalvanized steel and Zincroplex™, a zinc-rich paint over 40 gm/m2 electrogalvanized steel. The coating weight of the electrogalvanized steels was a factor in the degree of coating damage and thus affected corrosion resistance. The electrogalvanized steels were adversely affected by bi-axial deformation. Zincroplex™ failed under draw-type deformation. Although the corrosion limit diagram technique does not predict service life, it can distinguish among the capabilities of different materials at different levels and types of strain.
The Corrosion Response of Electrogalvanized Steel and Zinc-Rich Prepainted Steel to Prior Strain
Sae Technical Papers
1989 SAE Automotive Corrosion and Prevention Conference and Exposition ; 1989
1989-12-01
Conference paper
English
The corrosion response of electrogalvanized steel and zinc-rich prepainted steel to prior strain
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