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Phase equilibria in the Mo-Tic-Ti region of the ternary system Mo-TI-C. Part II

  • Test Methods and Properties of Materials
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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    A study was made of the phase equilibria in the Mo-TiC-Ti region of the ternary system Mo-Ti-C at 1400°C. The isothermal section of the system Mo-TiC-Ti at 1400°C was constructed.

  2. 2.

    The polythermic sections of the system Mo-TiC-Ti at 20 and 30 at.% C were established.

  3. 3.

    It is shown that the direction of the tie lines in the Δ+β region is parallel to the quasi-binary Mo-TiC section at Ti contents ranging from 20 to 48 at.% in the 20 at.% C section and is independent of temperature.

  4. 4.

    The distribution coefficient K for the two-phase Δ+β region on the solidus surface was calculated. The coefficient was found to be 34±8 at titanium contents ranging from 20 to 58 at.% in the 20 at.% C section.

  5. 5.

    It was found that the boundary of the homogeneity region of the Δ-phase in the Mo-TiC section lies at the 46 at.% Ti-46 at.% C composition at 1700°C and 46.5 at.% Ti-46.5 at.% C composition at 1400°C.

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Literature cited

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Authors and Affiliations

  1. Institute of Materials Science, Academy of Sciences of the Ukrainian SSR, Ukraine

    V. N. Eremenko & T. Ya. Velikanova

Authors
  1. V. N. Eremenko
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  2. T. Ya. Velikanova
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Translated from Poroshkovaya Metallurgiya, No. 9 (93), pp. 57–61, September, 1970.

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Eremenko, V.N., Velikanova, T.Y. Phase equilibria in the Mo-Tic-Ti region of the ternary system Mo-TI-C. Part II. Powder Metall Met Ceram 9, 744–747 (1970). https://doi.org/10.1007/BF00836967

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  • DOI: https://doi.org/10.1007/BF00836967

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