The Paton Welding Journal, 2026, №02

2026 №02 (02)

DOI of Article 10.37434/tpwj2026.02.03

2026 №02 (04)

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The Paton Welding Journal, 2026, #2, 23-30 pages

Investigation of the structural and phase composition of the titanium alloy Ti‒36Nb‒6Al‒1.8Mo‒1.8Zr

S.V. Akhonin¹ , A.Yu. Severyn¹ , V.O. Berezos¹ , V.A. Kostin¹ , I.I. Alekseenko¹ , O.V. Samofalov¹ , V.V. Pashynskyi²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: akhonin.sv@gmail.com
²Metinvest Polytechnic. 80 Southern Highway, 69008, Zaporizhzhia, Ukraine

Abstract
Research was carried out on the structural and phase composition of the titanium alloy Ti‒36Nb‒6Al‒1.8Mo‒1.8Zr produced by electron beam melting. It was demonstrated that the alloy belongs to the group of pseudo-β titanium alloys, in which the β-phase is fully retained at room temperature. It was found that for cast titanium alloys doped with a high content of niobium (up to 40 %), a homogenization annealing treatment with a minimum holding time of 18 h at 1200 °C is required. The study has found that the alloy exhibits high technological ductility, while subsequent vacuum annealing at 960 °C for one hour leads to partial recrystallization of grains and restoration of the structure, but does not completely eliminate the rolling texture.
Keywords: titanium alloy, phase transformation, structure, phase, temperature, deformation treatment

Received: 02.10.2025
Received in revised form: 07.01.2026
Accepted: 10.02.2026

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Suggested Citation

S.V. Akhonin, A.Yu. Severyn, V.O. Berezos, V.A. Kostin, I.I. Alekseenko, O.V. Samofalov, V.V. Pashynskyi (2026) Investigation of the structural and phase composition of the titanium alloy Ti‒36Nb‒6Al‒1.8Mo‒1.8Zr. The Paton Welding J., 02, 23-30. https://doi.org/10.37434/tpwj2026.02.03

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