| 2026 №02 (01) |
DOI of Article 10.37434/sem2026.02.02 |
2026 №02 (03) |
"Suchasna Elektrometallurgiya" (Electrometallurgy Today), 2026, 2, 14-18 pages
Introduction of rare earth elements in electron beam melting of titanium aluminide ingots used for 5th generation aircraft engine blades
V.O. Beresos1
, O.B. Halienkova2, T.O. Mitina3, A.M. Ivaniv4
1E.O. Paton Electric Welding Institute of the NAS of Ukraine
11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
E-mail: titan.paton@gmail.com
2JSC «Ivchenko-Progress». 2 Ivanova Str., 69068, Zaporizhzhia, Ukraine
3JSC «Titanium Institute». 180 Sobornyy Prosp., 69035, Zaporizhzhia, Ukraine
4Ukrainian State University of Science and Technology, 2 Lazaryana Str., 49010, Dnipro, Ukraine
Abstract
The paper investigates the technological features of obtaining intermetallic alloys based on titanium aluminide, promising for use in gas turbine engine parts. Particular attention is paid to the use of rare earth metals, in particular yttrium, as an effective modifying additive in alloy smelting. The technological features of obtaining intermetallic alloys based on titanium aluminide, intended for use in modern aircraft engine manufacturing, are considered. The results of smelting an ingot with a diameter of 195 mm of the Ti–29Al–7Nb–2Mo system alloy by the double electron beam remelting method are presented. To form the optimal chemical composition and improve the operational characteristics, further remelting was carried out in a vacuum arc furnace with a controlled atmosphere with the introduction of yttrium modifying element. The effect of modification on the macro- and microstructure of the alloy, as well as on its mechanical properties, was studied. It has been established that the introduction of a surfactant contributes to the refinement of the grain structure and the increase in the strength of the material. 10 Ref., 2 Tabl., 2 Fig.
Keywords: aluminides, titanium, electron beam melting, vacuum arc remelting, modification, yttrium, structure, mechanical properties
Received: 5.05.2026
Received in revised form: 06.05.2026
Accepted: 20.05.2026
Posted online: 27.05.2026
References
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Suggested Citation
V.O. Beresos, O.B. Halienkova, T.O. Mitina, A.M. Ivaniv (2026) Introduction of rare earth elements in electron beam melting of titanium aluminide ingots used for 5th generation aircraft engine blades. Electrometallurgy Today, 02, 14-18. https://doi.org/10.37434/sem2026.02.02Advertising in this issue:
