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Journal of Materials Engineering and Performance

Erschienen in:

06.07.2016

A Study on Effects of Mechanical Stress and Cathodic Protection on Marine Coatings on Mild Steel in Artificial Seawater

verfasst von: Hong-Qi Yang, Qi Zhang, San-Shan Tu, Yi-Min Li, You Wang, Yi Huang

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 9/2016

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Abstract

In this work, the separate and combined effects of elastic stress and cathodic protection (CP) potential on barrier properties of two marine coating systems applied on Q235 steel plates in artificial seawater were investigated through measurements of electrochemical impedance spectra. The obtained results indicated that elastic stress could have a significant influence on coating barrier property, and the extent of this influence depends on both the magnitude and direction of elastic stress. Meanwhile, it was shown that the separate application of CP could also promote coating degradation, and for both coating systems, the more negative the applied CP potential, the more quickly and more seriously the coatings deteriorated. Furthermore, compared with the sample with only stress or CP, the results showed that the interaction between mechanical stress and CP could reduce their respective impact on coating barrier property, and the combined effect depends on the predominant factor.

Vorheriger Artikel Improving the Adhesion Resistance of the Boride Coatings to AISI 316L Steel Substrate by Diffusion Annealing

Nächster Artikel Corrosion Protection Performance of Nano-SiO2/Epoxy Composite Coatings in Acidic Desulfurized Flue Gas Condensates

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Titel: A Study on Effects of Mechanical Stress and Cathodic Protection on Marine Coatings on Mild Steel in Artificial Seawater
verfasst von: Hong-Qi Yang
Qi Zhang
San-Shan Tu
Yi-Min Li
You Wang
Yi Huang
Publikationsdatum: 06.07.2016
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 9/2016
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-016-2205-2

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