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Platinum and the oxidation behavior of a nickel based superalloy

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Abstract

The oxidation behavior in air of a platinum containing nickel based superalloy (RJM2012) is compared with that of a similar alloy (IN792+Hf) without platinum. The distinct improvement in the oxidation resistance of the platinum containing alloy at high temperatures (1100°C) is explained in terms of the oxide morphologies and oxidation kinetics. In particular, it appears that platinum has a small but significant effect on the diffusion of other species in the alloy, and a model is presented to account for the complex sequence of oxide development, which culminates in the formation of a protective alumina scale.

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Authors and Affiliations

  1. Dept. of Metallurgy and Materials Science, University of Liverpool, P.O. Box 147, L69 3BX, Liverpool, UK

    G. J. Tatlock & T. J. Hurd

Authors
  1. G. J. Tatlock
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  2. T. J. Hurd
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Tatlock, G.J., Hurd, T.J. Platinum and the oxidation behavior of a nickel based superalloy. Oxid Met 22, 201–226 (1984). https://doi.org/10.1007/BF00656576

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  • DOI: https://doi.org/10.1007/BF00656576

Keywordplatinum

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