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ArticleName Additive technologies of producing titanium aluminide based alloys
DOI 10.17580/tsm.2024.04.08
ArticleAuthor Illarionov A. G., Popov A. A., Shabanov M. A., Stepanov S. I.

Ural Federal University named after the first President of Russia B. N. Yeltsin, Yekaterinburg, Russia

A. G. Illarionov, Associate Professor of the Department of Heat Treatment and Metal Physics, Candidate of Technical Sciences, email:
A. A. Popov, Head of the Department of Heat Treatment and Metal Physics, Doctor of Technical Sciences, email:
M. A. Shabanov, Postgraduate Student of the Department of Heat Treatment and Metal Physics, email:
S. I. Stepanov, Associate Professor of the Department of Heat Treatment and Metal Physics, Candidate of Technical Sciences, email:


Heat-resistant alloys based on titanium aluminides Ti2AlNb and TiAl can compete with heat-resistant nickel alloys at operation temperatures of up to 750 oС due to low density. However, when producing alloys based on TiAl and Ti2AlNb by conventional methods, we face difficulties attributed to their limited workability due to low ductility, impact strength, especially at lower temperatures, and propagation of liquation processes. Some of the stated difficulties can be avoided by a synthesis of such alloys with additive methods of 3D printing. The authors analyzed data available in literature regarding additive methods of producing heat-resistant alloys based on titanium aluminides Ti2AlNb and TiAl. Additive technologies of producing metallic materials were classified pursuant to international standard EN ISO/ASTM 52900-2021. The authors conducted a critical analysis of technological opportunities of various additive methods used to produce heat-resistant titanium alloys, including promising hybrid technologies. The paper considers how to achieve a set of mechanical properties by forming the set structural state directly during 3D printing or heat post-treatment. The authors described key problems and proposed fields of impro ving additive technologies to achieve working properties of products from alloys based on titanium intermetallides.
The research was funded by grant of the Russian Science Foundation No. 22-49-02066.

keywords alloys based on orthorhombic titanium aluminide Ti2AlNb, О-alloys, -alloys, additive technologies, properties, production processes, treatment.

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