Effect of Seasonal Variation in the Electrochemical Performance of Metallic Materials Exposed in Seawater

Seasonal variability and its direct effect on the marine environment and the relationship it has on the performance of metallic materials submerged in this waters are of current interest, this due to possible changes in the mechanism of degradation. [1] This paper presents a study of the degradation...

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Bibliographic Details
Published in:ECS transactions 2013-01, Vol.47 (1), p.137-147
Main Authors: Ávila, Edgar, Galvan-Martinez, Ricardo, Morales, Miguel Angel, Orozco-Cruz, Ricardo
Format: Article
Language:English
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Summary:Seasonal variability and its direct effect on the marine environment and the relationship it has on the performance of metallic materials submerged in this waters are of current interest, this due to possible changes in the mechanism of degradation. [1] This paper presents a study of the degradation of six different metallic materials immersed in seawater. During the exposure time topographic tests were performed, and measurements of physicochemical parameters and the application of electrochemical techniques as linear polarization resistance (LPR) and Electrochemical Impedance Spectroscopy (EIS), as well as monitoring of potential of corrosion (Ecorr) versus time were accomplished. At the end of the materials exposure time the results of degradation were correlated with the variation of the seawater physicochemical parameters. Analysis of this type allows us to observe the evolution that occurs on the metal surface including the process or type of corrosion that is developed.
ISSN:1938-5862
1938-6737
DOI:10.1149/04701.0137ecst