Фазовая диаграмма системы Ni-Sc

К оглавлению: Другие диаграммы (Others phase diargams)

Ni-Sc (Nickel-Scandium) P. Nash and Y.Y. Pan The assessed phase diagram for the Ni-Sc system is based on the data of [78Mar] and [84Mas], which show excellent agreement. The invariant temperatures determined by [78Mar] and [84Mas] differ by no more than the expected experimental error of с10 C. Over the range 0 to 36 at.% Sc, the values of [ 84Mas] have been selected for the assessed diagram because of the larger number of alloys studied in their investigation. The existence of five Ni-Sc intermetallic compounds is well established: NiSc2 [62Ald, 74Mar], NiSc [62Ald, 74Mar], Ni2Sc [61Dwi, 74Mar], Ni7Sc2 [68Goe], and Ni5Sc [68Goe, 74Mar]. The maximum solubility of Sc in (Ni) is 0.7 at.% at the eutectic temperature [ 84Mas]. 61Dwi: A.E. Dwight, Trans. ASM, 53, 479-500 (1961). 62Ald: A.T. Aldred, Trans. Metall. Soc. AIME, 224, 1082-1083 (1962). 68Goe: J.A. Goebel and S. Rosen, J. Less-Common Met., 16, 441-446 (1968). 74Mar: V.Ya. Markiv, V.V. Pet'kov, I.S. Gavrilenko, and N.W. Beryavina, Tezisy Doklivses. Konf. Kristallokhim. Intermet. Soedin., 2, 53 (1974) in Russian. 78Mar: V.Ya. Markiv, I.S. Gavrilenko, V.V. Pet'kov, and N.N. Beryavina, Metallofizika, 73, 39-45 (1978) in Russian. 84Mas: S.B. Maslenkov and G.S. Braslavskaya, Izv. Akad. Nauk SSSR, Met., 1, 203-206 (1984) in Russian; TR: Russ. Metall., 1, 203-206 (1984). Published in Phase Diagrams of Binary Nickel Alloys, 1991. Complete evaluation contains 1 figure, 4 tables, and 9 references. Special Points of the Ni-Sc System