Issue 78

A. P. Soldatenkov et alii, Fracture and Structural Integrity, 78 (2026) 248-259; DOI: 10.3221/IGF-ESIS.78.15

Effect of aging temperature on mechanical and fatigue properties of Ti-5Al-5V-5Mo-1Cr-1Fe alloy processed by radial-shear rolling

Alexey P. Soldatenkov, Andrey A. Shanyavskiy Aviation Register of the Russian Federation, Sheremetyevo Airport, Moscow region, Russia

106otdel@mail.ru, https://orcid.org/0000-0001-9171-046X 106otdel@mail.ru, https://orcid.org/0000-0001-7634-7850 Evgeny V. Naydenkin, Ivan P. Mishin, Sergey V. Panin, Alexey A. Bogdanov V.E. Panin Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia

nev@ispms.ru, https://orcid.org/0000-0002-9073-9620 mip@ispms.ru, http://orcid.org/0000-0001-8294-7238 svp@ispms.ru, https://orcid.org/0000-0001-7623-7360 bogdanov@ispms.ru, https://orcid.org/0000-0001-8858-5768

Citation: Soldatenkov, A. P., Shanyavskiy, A. A., Naydenkin, E. V., Mishin, I. P., Panin, S. V., Bogdanov, A. A., Effect of aging temperature on mechanical and fatigue properties of Ti-5Al-5V-5Mo-1Cr-1Fe alloy processed by radial-shear rolling, Fracture and Structural Integrity, 78 (2026) 248-259.

A BSTRACT . In this study, the effect of aging temperature on the mechanical and fatigue properties of the Ti-5Al-5V-5Mo-1Cr-1Fe alloy treated by radial shear rolling was investigated. Increasing the aging temperature from 450 up to 520 °C gave rise to coarsening of the microstructure and enhancing of the volume fraction of the  -phase from 58 to 71 %. As a result, the ultimate tensile strength decreased slightly, but both ductility and fatigue performance at a cycling frequency of 5 Hz increased. In the high-cycle fatigue regime, the regularities of the initiation and propagation of cracks, as well as the evolution patterns and ultimate sizes of the fracture surface zones were revealed. In addition, both critical level of stress intensity factors and general relationships between the crack propagation and the fatigue performance were assessed. The obtained results suggested that used combinations of radial-shear rolling and subsequent aging is a promising treatment for critical components made of the Ti-5Al-5V-5Mo-1Cr-1Fe alloy operated under low-frequency high amplitude loads. K EYWORDS Near β titanium alloy, Mechanical properties, High cycle fatigue, Fatigue failure, Stress intensity factor.

Received: 15.07.2026 Accepted: 21.08.2026 Published: 05.09.2026 Issue: 10.2026

Copyright: © 2026 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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