The Paton Welding Journal, 2026, №07

2026 №07 (01)

DOI of Article 10.37434/tpwj2026.07.02

2026 №07 (03)

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The Paton Welding Journal, 2026, #7, 10-13 pages

Addition of rare-earth elements in electron beam melting of titanium aluminide ingots used for 5^th generation aircraft engine blades

V.O. Berezos¹, O.B. Halienkova², T.O. Mitina³, A.M. Ivaniv⁴, M.M. Piasetskyi⁴

¹E.O. Paton Electric Welding Institute of the NASU. 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
This study examines the technological features of producing intermetallic titanium aluminide alloys, which show promise for use in gas turbine engine components. Particular attention is paid to the use of rare-earth metals, specifically yttrium, as an effective modifying additive in alloy melting. The technological features of producing intermetallic titanium aluminide alloys, intended for use in modern aircraft engine manufacturing, are examined. The results of melting a 195 mm diameter ingot of the Ti–29Al–7Nb–2Mo alloy using the double electron beam remelting method are presented. To achieve an optimal chemical composition and improve performance characteristics, further remelting was carried out in a controlled-atmosphere vacuum arc furnace with the addition of yttrium as a modifying element. The effect of modification on the macro- and microstructure of the alloy, as well as on its mechanical properties, was studied. It was established that the addition of a surface-active element promotes grain structure refinement and increases the material’s strength.
Keywords: aluminide, titanium, electron beam melting, vacuum arc remelting, modification, yttrium, structure, mechanical properties

Received: 05.05.2026
Received in revised form: 06.05.2026
Accepted: 14.07.2026

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Suggested Citation

V.O. Berezos, O.B. Halienkova, T.O. Mitina, A.M. Ivaniv, M.M. Piasetskyi (2026) Addition of rare-earth elements in electron beam melting of titanium aluminide ingots used for 5^th generation aircraft engine blades. The Paton Welding J., 07, 10-13. https://doi.org/10.37434/tpwj2026.07.02

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