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Lifetime Prediction of Organic Coatings on Steel

Published online by Cambridge University Press:  21 February 2011

M. Kendig  and
F. Mansfeld
M. Kendig
Affiliation:
Rockwell International Science Center, 1049 Camino Dos Rios, Thousand Oaks, CA 91360
F. Mansfeld
Affiliation:
Department of Material Science, University of Southern California, Los Angeles, CA 90089–0241
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Abstract

A review of methods for predicting the lifetime of protective organic coatings on steel is presented in terms of a model which includes the steps of defect formation, transport of corrodents, loss of adhesion, and corrosion. Electrochemical impedance methods and acoustic techniques have played important roles in characterizing how the four processes interact and depend on coating processes and environmental effects. A major result of this work has been the observation that both the anodic and cathodic partial processes of the corrosion reaction limit adhesion of organic coatings on steel by generating tensile stresses and polymer degradation, thereby limiting the life of the protective system.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 125: Symposium N – Materials Stability and Environmental Degradation , 1988 , 293
Copyright
Copyright © Materials Research Society 1988

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References

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