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Solubility product for niobium carbide in austenite

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Abstract

The solubility product for NbC0.87 has been experimentally determined between 950° and 1250 °C by gas equilibration and extraction methods. The new relation log10[pct Nb] [pct C]0.87 = 3.4 − 7920/T on a weight percent basis has been evaluated from the data. This is in good agreement with a compendium of measurements from the literature. The data do not yet justify an analysis which takes account of a variable stoichiometry.

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Authors and Affiliations

  1. Tata Iron and Steel Company, Jamshedpur, India

    V. K. Lakshmanan (Research Engineer)

  2. Department of Metallurgy and Materials Science, McMaster University, L8S 4K1, Hamilton, Ontario, Canada

    J. S. Kirkaldy (Professor)

Authors
  1. V. K. Lakshmanan
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  2. J. S. Kirkaldy
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Lakshmanan, V.K., Kirkaldy, J.S. Solubility product for niobium carbide in austenite. Metall Trans A 15, 541–544 (1984). https://doi.org/10.1007/BF02644978

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