The Paton Welding Journal, 2026, №07

2026 №07 (02)

DOI of Article 10.37434/tpwj2026.07.03

2026 №07 (04)

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The Paton Welding Journal, 2026, #7, 14-20 pages

Investigation of the evaporation behavior of alloying elements during electron beam melting of heat-resistant titanium alloys in the Ti–Al–Zr–Sn–Mo–Nb–Si alloy system

S.V. Akhonin, A.Yu. Severyn, O.G. Yerokhin, Yu.T. Ishchuk

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: akhonin.sv@gmail.com


Abstract
The thermodynamic and kinetic parameters of the metallic solution of the alloy of the Ti–Al–Zr–Sn–Mo–Nb–Si alloying system were determined, which made it possible to refine the model of the evaporation process of the elements of multicomponent alloys during electron beam melting cold hearth. It has been demonstrated that the mathematical model accurately describes the evaporation process of elements during the electron beam melting of high-temperature alloys of the Ti–Al–Zr–Sn–Mo–Nb–Si alloying system, as confirmed by full-scale experiments. The patterns of evaporation of alloy elements during electron beam melting were investigated, which make it possible to predict the final chemical composition of ingots and determine the melting parameters.
Keywords: electron beam melting, cold hearth, modeling, evaporation, high-temperature alloy, alloying elements, ingot

Received: 12.02.2026
Received in revised form: 08.04.2026
Accepted: 14.07.2026

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Suggested Citation

S.V. Akhonin, A.Yu. Severyn, O.G. Yerokhin, Yu.T. Ishchuk (2026) Investigation of the evaporation behavior of alloying elements during electron beam melting of heat-resistant titanium alloys in the Ti–Al–Zr–Sn–Mo–Nb–Si alloy system. The Paton Welding J., 07, 14-20. https://doi.org/10.37434/tpwj2026.07.03

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