The Paton Welding Journal, 2024, №03



2024 №03 (04)

DOI of Article 10.37434/tpwj2024.03.05

2024 №03 (06)

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The Paton Welding Journal, 2024, #3, 33-39 pages
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Producing advanced alloys based on titanium aluminides for modern aircraft engine manufacturing

O.V. Ovchinnikov¹, S.V. Akhonin², V.O. Beresos², A.Yu. Severin², O.B. Galenkova³, V.G. Shevchenko⁴

¹JSC «Titanium Institute». 180 Sobornyy Prosp., 69035, Zaporizhzhia. E-mail: common@timag.org
²E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
³SE «Ivchenko-Progress». 2 Ivanova Str., 69068, Zaporizhzhia, Ukraine.
⁴Zaporizhzhia Polytechnic National University. 64 Zhukovskoho str., 69063, Zaporizhzhia, Ukraine. E-mail: rector@zp.edu.ua

Abstract
Work has been performed on optimization of the technological scheme of producing ingots for consumable electrodes with a stable chemical composition and properties. The paper presents the results of studying an ingot of 195 mm diameter from a titanium aluminide-based alloy of Ti–28Al–7Nb–2Mo system, made by double electron beam remelting. Further ingot remelting in the arc furnace was performed, which allowed producing a homogeneous and defectfree ingot of an optimal composition of Ti–28Al–7Nb–2Mo–0.3 (Y, Re, B). The influence of modifying on the structure and properties was studied. It was determined that addition of surfactants promotes refining of the structural components and improvement of the alloy mechanical properties. 17 Ref., 2 Tabl., 9 Fig.
Keywords: electron beam melting, vacuum-arc melting, ingot, titanium aluminide, modifying, structure, mechanical properties

Received: 22.12.2023
Received in revised form: 14.02.2024
Accepted: 03.04.2024

References

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