The Corrosion Protection of Several Aluminum Alloys by Chromic Acid and Sulfuric Acid Anodizing

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The corrosion protection afforded 7075-T6, 7075-T3, 6061-T6, and 2024-T3 aluminum alloys by chromic acid and sulfuric acid anodizing was examined using electrochemical techniques. From these studies, it is concluded that sulfuric acid anodizing provides superior corrosion protection compared to chromic acid anodizing. Danford, M. D. Marshall Space Flight Center ...