Фазовая диаграмма системы Nd-V

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Nd-V (Neodymium-Vanadium) J.F. Smith and K.J. Lee The assessed phase diagram for the Nd-V system was obtained by thermodynamic modeling. For the calculation, Gibbs energies for the elemental transformations were taken from several sources. For Nd, the transition temperatures were taken from [Melt] and the heats of transition were taken from [83Cha]. Data for the melting of bcc V were taken from [81Smi], and data for the melting of dcph V were generated by proportionation according to stacking percentages of the data for fcc V and cph V from [70Kau]. An approximation for the numerical values of the interaction parameters was made with boundary conditions based on the limited experimental data and with due consideration of magnitudes implied by the Miedema approximations [76Mie, 80Deb, 83Mie, 83Nie]. The number of investigations of the phase relationships in the Nd-V system is quite limited. Work by [60Kom] quoted in [Elliott] indicated the absence of intermediate phases in the system. [64Obr] found the terminal solubility of Nd in (V) to be <0.04 at.% at both room and elevated temperatures. 60Kom: S.A. Komjathy, R.H. Read, and W. Rostoker, Armour Research Foundation of Illinois Inst. Tech., Chicago, IL, Rep. WADC-TR-59-483, reissued as U.S. Govt. Rep. AD-236050, 69 p (1960). 64Obr: W.L. O'Brien and E.A. Rowe, U.S. Bur. Mines Rep. Invest. 6553, 19 p ( 1964). 70Kau: L. Kaufman and H. Bernstein, Computer Calculation of Phase Diagrams, Academic Press, New York, 184 (1970). 76Mie: A.R. Miedema, J. Less-Common Met., 46, 67-83 (1976). 80Deb: F.R. deBoer, R. Boom, and A.R. Miedema, Physica B, 101, 294-319 (1980). 81Smi: J.F. Smith, Bull. Alloy Phase Diagrams, 2(1), 40-41, and 2(2), 172 ( 1981). 83Cha: M.W. Chase, Bull. Alloy Phase Diagrams, 4(1), 124 (1983). 83Mie: A.R. Miedema and A.K. Niessen, Calphad, 7, 27-36 (1983). 83Nie: A.K. Niessen, F.R. deBoer, R. Boom, P.F. de Chatel, W.C.M. Mattens, and A.R. Miedema, Calphad, 7, 51-70 (1983). Published in Phase Diagrams of Binary Vanadium Alloys, 1989. Complete evaluation contains 1 figure, 2 tables, and 11 references. Special Points of the Nd-V System