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Correlation Studies between Outdoor Exposure and Accelerated Laboratory Corrosion Tests for Galvanic and Non-Galvanic Ceramic-Aluminum Couples

Objective In this research, the objective was to correlate the outdoor exposure corrosion-rate data from a variety of microclimates with a series of accelerated laboratory corrosion tests for both galvanic and non-galvanic ceramic-aluminum (Al) couples. Various types of electrolytes were used in the accelerated tests to improve correlation with field results. In addition, the outdoor exposure test data were used to adjust the duration of the accelerated corrosion tests so that the corrosion damage accumulated in the accelerated tests could better represent the corrosion damage accumulated in the field.