Abstract
In the study, the interaction model has been considered, which assumes that the radius of interaction between carbon and nickel atoms in austenite corresponds to the nearest neighborhood of an octahedral interstice by lattice sites, and the interaction radius between two carbon atoms corresponds to two nearest coordination shells formed by octahedral interstices in the lattice. The three-particle potential of approach of C-Ni-C atoms is taken equal to zero. The pair potential of interaction between carbon atoms in austenite is taken to be equal to that obtained from the data of Mössbauer spectroscopy. In this model, the magnitude of the secondorder thermodynamic cross-interaction parameter ρ C, NiC in the austenite at a temperature of 1273 K has been calculated. The results of the calculation (ρ C, NiC = 11.4) satisfactorily agree with the experimental value (ρ C, NiC = 11.1).
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Original Russian Text © L.A. Bol’shov, V.I. Bogdanov, V.A. Gorbunov, 2008, published in Fizika Metallov i Metallovedenie, 2008, Vol. 105, No. 2, pp. 123–126.
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Bol’shov, L.A., Bogdanov, V.I. & Gorbunov, V.A. Calculation of the thermodynamic interaction parameter ρ C, NiC , in the austenite of the Fe-C-Ni system. Phys. Metals Metallogr. 105, 113–115 (2008). https://doi.org/10.1007/s11508-008-2002-8
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DOI: https://doi.org/10.1007/s11508-008-2002-8