MECHANISM OF CREVICE CORROSION AND ITS APPLICATION IN TESTING.

Iwao Matsushima, Jun ichi Sakai

    研究成果: Article

    8 引用 (Scopus)

    抄録

    The mechanism of crevice corrosion in stainless steels was studied using an electrochemical technique. Experiments were based on the hypothesis that the rate of crevice corrosion could be determined by combining the crevice potential and the polarization curve in low pH high Cl** minus solutions, simulating the solution within the crevice. The rate of dissolution indicated by the polarization curve in 5M NaCl, pH 2, and the measured crevice potential was in good agreement with the corrosion rate obtained by immersion of the crevice specimen in neutral 3. 5% NaCl solutions. It is demonstrated that the electrochemical cell controlling crevice corrosion can be described quantitatively in terms of potentials inside and outside of the crevice, solution resistance in the crevice, and the polarization behavior in the crevice solution. The application of the results to crevice corrosion testing is also discussed.

    元の言語English
    ページ(範囲)598-604
    ページ数7
    ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    63
    発行部数5
    出版物ステータスPublished - 1977 4

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    corrosion
    cracks
    Corrosion
    Testing
    Polarization
    Electrochemical cells
    Stainless Steel
    Corrosion rate
    Dissolution
    Stainless steel
    polarization
    electrochemical cells
    curves
    submerging
    stainless steels
    Experiments
    dissolving

    ASJC Scopus subject areas

    • Metals and Alloys

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    MECHANISM OF CREVICE CORROSION AND ITS APPLICATION IN TESTING. / Matsushima, Iwao; Sakai, Jun ichi.

    :: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 巻 63, 番号 5, 04.1977, p. 598-604.

    研究成果: Article

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