Lifetime prediction of water-borne paints with the AC-DC-AC accelerated electrochemical method
Keywords:Water-borne paints, Coated steel, Electrochemical impedance spectroscopy, Accelerated tests, Cathodic delamination
In this study an accelerated method for the evaluation of painted metals is proposed. Specifically, the proposed method has been applied in a study of the process of degradation of two water-based paints applied to a carbon steel surface. The technique is based on the application of cycles combining measurement of electrochemical impedance spectra, cathodic polarisation steps, and recording of the evolution of the corrosion potential of the system in function of time. The results obtained from this method are compared with those obtained from studying the evolution of the impedance spectra of both systems in function of the time of immersion, for periods of immersion of the order of 200 days.
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How to Cite
Bethencourt, M., Botana, F. J., González-Rovira, L., Marcos, M., & Osuna, R. M. (2005). Lifetime prediction of water-borne paints with the AC-DC-AC accelerated electrochemical method. Revista De Metalurgia, 41(Extra), 374–378. https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1059
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