Characterization of Organic Coatings on Metal Substrates by Electrochemical Impedance Spectroscopy
Authors:
- 1 March 1990
- journal article
- Published by Association for Materials Protection and Performance (AMPP) in Corrosion
- Vol. 46 (3) , 221-229
Abstract
Organic coatings on phosphated and bare mild steel exposed to aqueous sodium chloride solutions were investigated by electrochemical impedance spectroscopy (EIS). The corrosion protection of coatings is well characterized by a thorough transfer function analysis of the EIS data obtained. A quasi-homogeneous and two different inhomogeneous three-dimensional surface models were used to analyze perfect and imperfect coatings, respectively. Local defects within the organic coatings and delamination effects at the substrate/coating interface were determined quantitatively even after a relatively short exposure time.Keywords
This publication has 18 references indexed in Scilit:
- The role of surface inhomogeneities in corrosion processes-electrochemical impedance spectroscopy (EIS) on different aluminium oxide filmsCorrosion Science, 1989
- Electrochemical Impedance Spectroscopy on 3‐D Inhomogeneous Surfaces Corrosion Inhibition of Carbon Steel in Weakly Acidic NaCl SolutionsBerichte der Bunsengesellschaft für physikalische Chemie, 1988
- Electrochemical Impedance Spectroscopy on 3‐D Inhomogeneous Surfaces: Corrosion in Neutral Aerated SolutionsJournal of the Electrochemical Society, 1988
- Anwendung der dynamischen Systemanalyse zur Untersuchung der Sauerstoffkorrosion von eisen in neutralen, belüfteten lösungenMaterials and Corrosion, 1986
- An electrochemical impedance spectroscopy study of reactions at the metal/coating interfaceCorrosion Science, 1986
- Bedeutung der Dynamischen Systemanalyse für Korrosionsuntersuchungen in Forschung und PraxisMaterials and Corrosion, 1985
- Determination of the long term corrosion behavior of coated steel with A.C. impedance measurementsCorrosion Science, 1983
- Etude electrochimique, et par microscopie electronique a balayage, du fer recouvert de peintureSurface Technology, 1976
- Zum potential des ladungsnullpunktes des eisens—IIElectrochimica Acta, 1969
- Zum potential des ladungsnullpunktes des eisens—IElectrochimica Acta, 1966