Study of isothermal phase transformations kinetics in heat-resistant alloys based on gamma titanium aluminide TiAl

Akbulatov R.R., Efremova A.P., Bogachev I.A., Panin P.V.
UDC
539.61
DOI
10.18577/2307-6046-2024-0-11-22-32
Article PDF (Russian) (794.85 KB)
How to cite
Akbulatov R.R., Efremova A.P., Bogachev I.A., Panin P.V. Study of isothermal phase transformations kinetics in heat-resistant alloys based on gamma titanium aluminide TiAl // Proceedings of VIAM. 2024. No. 11. DOI: 10.18577/2307-6046-2024-0-11-22-32. URL: https://test.viam.ru/en/journal/2024/11/3
Keywords
titanium aluminide TiAl, beta-solidifying gamma alloys, peritectically solidified gamma alloys, Temperature–Time–Transformation (TTT) diagrams, thermal stability, X-ray diffraction (XRD) analysis, selective electron beam melting (SEBM)
Abstract

An experimental investigation of structure evolution kinetics in heat-resistant intermetallic TiAl-based alloys of various classes has been accomplished under the conditions of high-temperature exposures in the temperature range 900–1300 °C and durations of 15–240 min. The Temperature–Time–Transformation diagrams (TTT-diagrams) have been constructed to summarize data on isothermal phase transformations in the studied alloys with initial structures after selective electron beam melting.

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