Фазовая диаграмма системы Nd-Ti

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Nd-Ti (Neodymium-Titanium) J.L. Murray The only published experimental study of the Ti-Nd system is that of [57Sav, 62Sav], limited both in the range examined and in the purity of the alloys. [ 57Sav, 62Sav] studied the diagram in the range 0 to 6 at%. Nd by microscopy, thermal analysis, and dilatometry. Their Nd contained 0.2 wt.% of other rare earths. The temperatures of the invariant reactions at 1550 and 900 C were determined by thermal analysis and dilatometry, and the measurements were probably accurate to about с30 and с10 C, respectively. The other invariant reaction temperature (800 C) appears to have been determined by microscopic methods, and it has an unknown but larger uncertainty. The solubility of Nd in (Ti) was found to be about 0.6 at. % at 600 C. A thermodynamic calculation was used in the present assessment to test the self consistency of the diagram reported by [57Sav, 62Sav]. The assessed diagram is the result of the calculation. 57Sav: E.M. Savitskii and G.S. Burkhanov, Zh. Neorg. Khim., 2(11), 2609-2616 ( 1957) in Russian; TR: J. Inorg. Chem., 2, 199-219 (1957). 62Sav: E. M. Savitskii and G.S. Burkhanov, J. Less-Common Met., 4, 301-314 ( 1962). Published in Phase Diagrams of Binary Titanium Alloys, 1987. Complete evaluation contains 1 figure, 3 tables, and 3 references. Special Points of the Ti-Nd System