Numerical Analysis of Galvanic Corrosion under a Thin Electrolyte Film

DOI Web Site 5 Citations 32 References
  • Okada Nobuhiro
    Corporate Research & Development Labs, Sumitomo Metal Industries, Ltd.

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Other Title
  • 薄液膜下におけるガルバニック腐食の数値解析
  • 薄液膜下におけるガルパニック腐食の数値解析
  • ハクエキマク カ ニ オケル ガルパニック フショク ノ スウチ カイセキ

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Description

Cut edge corrosion is well known problem at shear cut edge of galvanized steel sheet, where the zinc coating is consumed early. The cut edge corrosion is regarded as galvanic corrosion under a thin electrolyte film. A new numerical analysis model for galvanic corrosion has been developed in order to make clear the mechanism of the cut edge corrosion. This model has been considered oxygen concentration in the electrolyte, because the corrosion rate under a thin electrolyte film is controlled by oxygen dissolving from air. In addition, ion transportation and reactions are considered. This paper explains details of the numerical model and numerical analysis results.

Journal

  • Corrosion Engineering

    Corrosion Engineering 61 (10), 376-383, 2012

    Japan Society of Corrosion Engineering

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