Investigation of the effect of aluminum on the phase composition of Ti–Al–Nb–Mo gamma alloys

А. Ж. Терликбаева, Aliya Alimzhanova, R. A. Shayakhmetova, Dauletkhan Smagulov, P. A. Osipov

2017

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DOI 10.1134/s0031918x17110163
Data confidence 85 high
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Abstract

A quantitative analysis of the influence of aluminum concentration on the phase composition of TNM-type Ti–Al–Nb–Mo γ-alloys has been carried out using the Thermo-Calc software and experimental methods. Isothermal and polythermal sections of the corresponding phase diagram have been calculated; the critical temperatures of phase transformations in the alloys of the system, and the chemical compositions of phases formed in them (β, α, α 2 , γ) have been determined. The influence of the annealing temperature on the microstructure and phase composition of the alloys containing 43 and 40% Al has been studied.