The localized corrosion of resistant alloys in chloride solutions |
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Authors: | CJ Semino P Pedeferri GT Burstein TP Hoar |
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Affiliation: | Department of Metallurgy and Materials Science, Pembroke Street, Cambridge CB2 3QZ, England |
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Abstract: | A potentiostatic scratching technique has been used to study the breakdown potentials of stainless steel 304, Incoloy, Inconel 600, Monel 400 and Hastelloy C in chloride solution at pH 8 as a function of chloride activity, temperature and metal cold work. For the first four alloys break-down occurs through pitting. For Hastelloy C there is no pitting process, and breakdown occurs by a transpassive reaction, probably involving oxidation of Mo and Cr in the film to soluble anions. |
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