Abstract
Phase separation in the hexagonal ω modification of the Ti-Zr system was observed. The ω → ω1 + ω2 decomposition in an equiatomic TiZr alloy after prolonged thermal treatment at P = 5.5 ± 0.6 GPa and T = 440 ± 30°C was revealed using x-ray diffraction. It is found that the concentration dependence of the specific volume of the ω phase of Ti-Zr alloys deviates from the Vegard law to higher values. An isobaric section of the equilibrium P-T-x phase diagram of the Ti-Zr system is shown to have the shape of an eutectoid diagram at pressures higher than 8 GPa.
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Original Russian Text © I.O. Bashkin, V.V. Shestakov, M.K. Sakharov, V.K. Fedotov, E.G. Ponyatovskiĭ, 2008, published in Fizika Tverdogo Tela, 2008, Vol. 50, No. 7, pp. 1285–1289.
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Bashkin, I.O., Shestakov, V.V., Sakharov, M.K. et al. Decomposition of a solid solution in the ω phase of the Ti-Zr system under high pressure. Phys. Solid State 50, 1337–1341 (2008). https://doi.org/10.1134/S1063783408070238
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DOI: https://doi.org/10.1134/S1063783408070238