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The relative stabilities of Cr23C6/ Cr7C3/ and Cr3C2 and the phase relationships in ternary Cr-Mo-C system

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Abstract

The thermodynamic properties of CrC6/23, CrC3/7, CrC2/3, and MoC1/2 reported in the literature have been correlated with the relative stabilities of these carbide phases derived from ternary phase diagrams. On the basis of the free energy of formation for one of the carbides and the free energy changes for the various equilibria occurring in ternary Mo-Cr-C system at 1300°C, free energies of formation for the stable and unstable carbide phases have been obtained. Using this free energy data, a calculated ternary Mo-Cr-C phase diagram is presented which agrees well with the experimentally determined one.

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Authors and Affiliations

  1. Materials Department, College of Applied Science and Engineering, University of Wisconsin-Milwaukee, Milwaukee, Wis.

    Y. A. Chang (Professor and Chairman) & D. Naujock (Graduate Student)

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  1. Y. A. Chang
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  2. D. Naujock
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Chang, Y.A., Naujock, D. The relative stabilities of Cr23C6/ Cr7C3/ and Cr3C2 and the phase relationships in ternary Cr-Mo-C system. Metall Trans 3, 1693–1698 (1972). https://doi.org/10.1007/BF02642548

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