Analysis on organic film degradation by dynamic impedance measurements

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

研究成果: Article

16 引用 (Scopus)

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Degradation of the organic coating film on the carbon steel has been investigated by dynamic impedance measurements. Since the permeation of water into the coating progresses in short period after the immersion, the time-stability of the electrode system is not satisfied while measuring the electrochemical impedance. As the result, the impedance spectrum in the low frequency region is distorted with the electrode that does not satisfy the time-stability. In the present paper, a dynamic impedance spectroscopy is applied to the electrode without the time-stability, and the distortion of impedance spectrum in the low frequency region is compensated. The degradation process of the coated metal was analyzed by the curve-fitting of the compensated impedance spectra with the equivalent circuit.

元の言語English
ページ(範囲)3802-3811
ページ数10
ジャーナルCorrosion Science
48
発行部数11
DOI
出版物ステータスPublished - 2006 11 1

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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