Corrosion Resistance of Galvannealed Steel
Authors:
- D. HiamDHD. Hiam
- 1 October 1989
- journal article
- Published by Association for Materials Protection and Performance (AMPP) in Corrosion
- Vol. 45 (10) , 852-856
Abstract
Galvannealed steel is an iron-zinc alloy coated steel produced by a diffusion process. The corrosion potentials and corrosion current of the various iron-zinc alloy phases present in the coating were measured in a neutral salt solution by employing coulometric and linear polarization techniques. In laboratory accelerated corrosion tests, painted galvannealed steel performed significantly better than painted hot-dipped or electrogalvanized steel with respect to underfilm corrosion. This was explained in terms of electrochemical measurement results.Keywords
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