Real-Time Measurement of Aerospace Organic Coating Condition and Performance in Atmospheric Corrosion Conditions

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The purpose of this work is to develop a predictive coating condition model that processes continuous coating condition measurements to characterize changes in coating protection in atmospheric laboratory and outdoor environments. Zero resistance ammeter measurements across an interdigitated electrode composed of two different aerospace materials were used to monitor the inhibitive ability of a scribed coating and detect loss of inhibitor protection. Results will be presented that demonstrate the ability of a stochastic model to detect loss of inhibitor protection and predict coating failure in comparison to observational results. A description of the samples, electrochemical measurements, and test environments will be reported along with the approach used to extract parameters to model and predict coating performance.

Product Number: 51324-20742-SG

Author: Victoria Avance; Rebecca Marshall; Fritz Friedersdorf; Matthew Repasky; Henry Yuchi

Publication Date: 2024

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Real-Time Measurement of Aerospace Organic Coating Condition and Performance in Atmospheric Corrosion Conditions

Association for Materials Protection and Performance