Aircraft often operate in environments where severe atmospheric corrosion may occur. Atmospheric corrosion of aircraft systems is dependent on geography, weather, design, and aircraft operations. The transient nature of corrosion phenomena can make measurement and modeling challenging. Recent advancements in environment and corrosivity monitoring offers rich data sets that provide near continuous responses that enable model development and verification. The environmental factors considered are temperature, relative humidity, and contaminant deposition. The response variables are galvanic and free corrosion rates. The environment and corrosivity measurements have been made in laboratory tests to compare results to literature values and thin film electrolyte theory. The corrosion sensors have also been modeled using finite element analysis to confirm that the model is consistent with theory. Finally, environmental spectra and resultant corrosion have been measured and used for modeling in a range of coastal conditions. The results demonstrate the utility of the measurements and capacity of atmospheric corrosion models to predict time dependent degradation of aerospace materials.
