Degradation of organic coatings on steel investigated by dynamic electrochemical impedance spectroscopy

Masayuki Itagaki, Akira Ono, Kunihiro Watanabe, Hideki Katayama, Kazuhiko Noda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Degradation of the organic coatings on steel has been investigated by the dynamic impedance measurements. The electrochemical impedance spectroscopy (EIS) has been used to evaluate the corrosion of steel coated by the organic film. Generally the electrochemical impedance of the coated steel shows complicated behavior, because the degradation of organic coating involves various steps until the steel corrodes under the coating. In the present paper, time variation of electrochemical impedance was measured to investigate the initial stage of coating degradation. The dynamic impedance was displayed on 3-dimension plots, whose axes were real and imaginary components and time. The time variation of the film resistance related to the permeation of water was monitored to discuss the corrosion mechanisms of coated steel. copyright The Electrochemical Society.

Original languageEnglish
Title of host publicationECS Transactions
Pages215-222
Number of pages8
Volume1
Edition9
DOIs
Publication statusPublished - 2006
EventCorrosion Protective Coatings and Inhibitors - 208th Electrochemical Society Meeting - Los Angeles, CA, United States
Duration: 2005 Oct 162005 Oct 21

Other

OtherCorrosion Protective Coatings and Inhibitors - 208th Electrochemical Society Meeting
CountryUnited States
CityLos Angeles, CA
Period05/10/1605/10/21

Fingerprint

Organic coatings
Electrochemical impedance spectroscopy
Degradation
Steel
Corrosion
Coatings
Permeation
Water

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Itagaki, M., Ono, A., Watanabe, K., Katayama, H., & Noda, K. (2006). Degradation of organic coatings on steel investigated by dynamic electrochemical impedance spectroscopy. In ECS Transactions (9 ed., Vol. 1, pp. 215-222) https://doi.org/10.1149/1.2215591

Degradation of organic coatings on steel investigated by dynamic electrochemical impedance spectroscopy. / Itagaki, Masayuki; Ono, Akira; Watanabe, Kunihiro; Katayama, Hideki; Noda, Kazuhiko.

ECS Transactions. Vol. 1 9. ed. 2006. p. 215-222.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Itagaki, M, Ono, A, Watanabe, K, Katayama, H & Noda, K 2006, Degradation of organic coatings on steel investigated by dynamic electrochemical impedance spectroscopy. in ECS Transactions. 9 edn, vol. 1, pp. 215-222, Corrosion Protective Coatings and Inhibitors - 208th Electrochemical Society Meeting, Los Angeles, CA, United States, 05/10/16. https://doi.org/10.1149/1.2215591
Itagaki M, Ono A, Watanabe K, Katayama H, Noda K. Degradation of organic coatings on steel investigated by dynamic electrochemical impedance spectroscopy. In ECS Transactions. 9 ed. Vol. 1. 2006. p. 215-222 https://doi.org/10.1149/1.2215591
Itagaki, Masayuki ; Ono, Akira ; Watanabe, Kunihiro ; Katayama, Hideki ; Noda, Kazuhiko. / Degradation of organic coatings on steel investigated by dynamic electrochemical impedance spectroscopy. ECS Transactions. Vol. 1 9. ed. 2006. pp. 215-222
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