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A correlation between EIS and salt spray proof tests for the corrosion resistance of conversion coated aluminum alloys

Buchheit, R.G.; Martinez, M.A.; Cunningham, M.; Jensen, H.; Kendig, M.W.

In this study, 33 different conversion coatings were applied to 5 different Al alloy substrates. Salt spray exposure testing and EIS (electrochemical impedance spectroscopy) were conducted for comparison. A relation was developed.