A number of commercially available zinc and zinc alloy coated sheet steels were tested in three different accelerated corrosion tests. Statistical analysis using two types of damage configurations, which included a gravel impinged preformed biaxially stretched postpainted dome and a conventional scribe, indicated that pure zinc coatings exhibited the best cosmetic corrosion resistance to stone-chip damage while pure zinc and zinc/iron coatings provided equivalent resistance to underfilm corrosion. The effect of test, paint damage and primer on the cosmetic corrosion performance of the various substrates is also presented.
Corrosion Behavior of Painted Zinc and Zinc Alloy Coated Autobody Sheet Steels
Sae Technical Papers
SAE International Congress and Exposition ; 1986
1986-02-01
Aufsatz (Konferenz)
Englisch
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