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Distribution of Elements Within Carbides of Multicomponent Alloys of the Ni – Cr – Co – Al – W – Re – Ta – Mo – Nb – C System

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Metal Science and Heat Treatment Aims and scope

Specific features of alloying element distribution within carbides of multicomponent alloys with the basic composition Ni – 5% Cr – 9% Co – 6% Al – 8.3% W – 4% Re – 4% Ta – 1% Mo – 1.5% Nb – 0.15% C are studied. Thermodynamic processes of crystallization are modelled using the CALPHAD method. Dependences are obtained for carbide dissolution (precipitation) temperature on alloying element content. Results of thermodynamic computations of the chemical composition of carbides are compared with experimental data obtained by electron microscopy (an RÉM-106I microscope with a system for energy dispersion x-ray spectrum analysis). The structure-energy condition of the carbide–matrix interphase boundaries is assessed. It is shown that the dependences derived correlate closely with thermodynamic processes occurring within the system.

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  1. National University Zaporozhe Polytechnic, Zaporozhe, Ukraine

    V. E. Ol’shanetskii & A. A. Glotka

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  1. V. E. Ol’shanetskii
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  2. A. A. Glotka
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Correspondence to A. A. Glotka.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 28 – 36, June, 2021.

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Ol’shanetskii, V.E., Glotka, A.A. Distribution of Elements Within Carbides of Multicomponent Alloys of the Ni – Cr – Co – Al – W – Re – Ta – Mo – Nb – C System. Met Sci Heat Treat 63, 318–326 (2021). https://doi.org/10.1007/s11041-021-00689-3

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  • DOI: https://doi.org/10.1007/s11041-021-00689-3

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