Abstract
We have studied composition dependences of kinematic viscosity for Fe-Cu melts with the aim of determining the temperature and composition ranges where chemically inhomogeneous Fe-Cu melts exist. Measurements were performed during heating and cooling in the temperature range from 1550 to 1700°C. Evidence has been found for chemical inhomogeneity of Fe-Cu melts in the form of both microheterogeneity and a nonuniform distribution of dissimilar atoms. We have determined the temperature and composition ranges of microheterogeneity in the phase diagram of the Fe-Cu system. The nonuniform Fe and Cu distributions have been accounted for in the quasi-chemical approximation of the theory of irregular solutions, which has been used to evaluate the short-range order parameter and integral enthalpy of mixing.
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Original Russian Text © O.A. Chikova, V.S. Tsepelev, A.N. Konstantinov, V.V. V’yukhin, 2014, published in Neorganicheskie Materialy, 2014, Vol. 50, No. 6, pp. 692–696.
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Chikova, O.A., Tsepelev, V.S., Konstantinov, A.N. et al. Viscosity of Fe-Cu melts. Inorg Mater 50, 642–645 (2014). https://doi.org/10.1134/S0020168514060041
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DOI: https://doi.org/10.1134/S0020168514060041