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An experimental technique for the rapid determination of binary phase diagrams: The Al-Mg system

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Abstract

A new experimental technique for the rapid determination of phase diagrams is described in this paper. The technique consists of producing a liquid diffusion couple of the Boltzmann-Matano type with the concentration of elements varying continuously across the specific portion of the phase diagram being investigated, heat treating the couple, and then performing microscopic and microchemical analysis to identify various phases. Since the couple contains all phase fields in the composition range, there is little ambiguity in the identification of phases. Some results on the use of this technique to resolve the confusion about the middle portion of the Al−Mg binary system are presented and discussed.

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Authors and Affiliations

  1. Bristol Aerospace Ltd., 660 Berry Street, P.O. Box 874, R3C2S4, Winnipeg, MB, Canada

    N. C. Goel (Metallurgical Engineer)

  2. Department of Mechanical Engineering, University of Manitoba, R3T 2N2, MB, Winnipeg, Canada

    J. R. Cahoon (Professor with Metallurgical Sciences Laboratory)

  3. Dan-Bo Energy Ltd., AB, Canada

    B. Mikkelsen (President)

Authors
  1. N. C. Goel
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  2. J. R. Cahoon
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  3. B. Mikkelsen
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Goel, N.C., Cahoon, J.R. & Mikkelsen, B. An experimental technique for the rapid determination of binary phase diagrams: The Al-Mg system. Metall Trans A 20, 197–203 (1989). https://doi.org/10.1007/BF02670245

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  • DOI: https://doi.org/10.1007/BF02670245

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