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The effects of boron additions on the oxidation of Fe-Cr alloys in high-temperature steam: Analytical results and mechanisms

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Abstract

The oxide films formed on iron-chromium alloys in superheated steam have been investigated using a variety of microanalytical techniques, most notably electron energy loss spectroscopy. The addition of boron dopants leads to the rapid formation of a microcrystalline film of composition (Cr) x B 1}-x 2 O 3,which resists further oxidation. Analysis of the near-edge structures associated with each core-loss edge after different oxidation times allows us to postulate various mechanisms for the observed behavior.

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Author notes

  1. P. N. Rowley & J. Little

    Present address: National Research Council, K1A OR6, Ottawa, Canada

Authors and Affiliations

  1. Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, CB2 3QZ, Cambridge, UK

    P. N. Rowley & J. Little

  2. The Blackett Laboratory, Imperial College, Prince Consort Road, SW7 2BZ, London, UK

    R. Brydson

  3. National Physical Laboratory, Queens Road, TW11 0LW, Teddington, Middlesex, UK

    S. R. J. Saunders

  4. Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D1000, Berlin 33, Germany

    H. Sauer & W. Engel

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  1. P. N. Rowley
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  4. S. R. J. Saunders
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  5. H. Sauer
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  6. W. Engel
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Rowley, P.N., Brydson, R., Little, J. et al. The effects of boron additions on the oxidation of Fe-Cr alloys in high-temperature steam: Analytical results and mechanisms. Oxid Met 35, 375–395 (1991). https://doi.org/10.1007/BF00664709

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  • DOI: https://doi.org/10.1007/BF00664709

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