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The dynamic oxidation of aluminum and its alloys

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Abstract

In order to investigate the rate of oxidation of liquid aluminum and its alloys under conditions similar to those found industrially, carbon dioxide was bubbled through the melt and the change in gas composition monitored using a mass spectrometer. It was found that the dynamic oxidation of aluminum was a function of the carbon dioxide partial pressure and was considerably faster than oxidation under quiescent conditions. For alloys containing an appreciable amount of magnesium, the magnesium oxidized in two stages. The carbon dioxide was first reduced to carbon monoxide and then to carbon. At lower magnesium levels, aluminum is preferentially oxidized, but the reduction of the carbon dioxide proceeds only as far as carbon monoxide.

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Authors and Affiliations

  1. Davy McKee Research and Development, Stockton-on-Tees, England

    G. Wightman

  2. Department of Metallurgy and Materials Science, University of Cambridge, England

    D. J. Fray (University Lecturer)

Authors
  1. G. Wightman
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  2. D. J. Fray
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formerly Graduate Student in the Department of Metallurgy and Materials Science, University of Cambridge, England,

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Wightman, G., Fray, D.J. The dynamic oxidation of aluminum and its alloys. Metall Trans B 14, 625–631 (1983). https://doi.org/10.1007/BF02653948

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  • DOI: https://doi.org/10.1007/BF02653948

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