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An investigation of hot corrosion morphology by color X-ray distribution imaging

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Abstract

The structure of corrosion layers on nickel-base alloys resulting from reaction with sulfur dioxide and sodium sulfate at elevated temperatures (hot corrosion) has been studied by the method of color X-ray distribution imaging. This technique involves the preparation of color composite prints by superimposing primary color images of the individual element X-ray distributions on a single sheet of color film. By a proper choise of primary tints, the distribution of reaction products and other features of thé corrosion morphology can be clearly defined as a result of color mixing in the composite micrograph. The distribution of corrosion products in the surface layers of Ni-Cr and Ni-Al alloys and an IN 738 specimen following sulfidation was investigated using this technique.

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Authors and Affiliations

  1. General Electric Company, Corporate Research and Development, 12301, Schenectady, N. Y.

    D. W. McKee (Physical Chemist), M. McConnell (Technician/Metallographer), R. B. Bolon (Physicist) & G. Romeo (Physical Chemist)

Authors
  1. D. W. McKee
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  2. M. McConnell
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  3. R. B. Bolon
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  4. G. Romeo
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McKee, D.W., McConnell, M., Bolon, R.B. et al. An investigation of hot corrosion morphology by color X-ray distribution imaging. Metall Trans A 6, 257 (1975). https://doi.org/10.1007/BF02667279

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  • DOI: https://doi.org/10.1007/BF02667279

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