Phase Transformations, Strength, and Modulus of Elasticity of Ti–15Mo Alloy Obtained by High-Pressure Torsion
- Авторы: Gatina S.1, Semenova I.1, Ubyyvovk E.2, Valiev R.1,2
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Учреждения:
- Ufa State Aviation Technical University
- St. Petersburg State University
- Выпуск: Том 9, № 1 (2018)
- Страницы: 14-20
- Раздел: Article
- URL: https://journals.rcsi.science/2075-1133/article/view/207044
- DOI: https://doi.org/10.1134/S2075113318010136
- ID: 207044
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Аннотация
This paper is devoted to structure formation and phase transformations in the metastable Ti–15Mo β alloy during high-pressure torsion at room temperature. Transmission electron microscopy and X-ray diffraction analysis show that grain refinement takes place together with a β ↔ ω phase transformation and a nonmonotonic change in the volume fraction of the ω phase when the true strain is increased. The effect of the ω phase on the strength and the elastic properties of the alloy is considered. It is shown that nanostructure formation with a minimum amount of the ω phase is responsible for the marked hardening of the Ti–15Mo alloy while retaining its relatively low elastic modulus.
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Об авторах
S. Gatina
Ufa State Aviation Technical University
Email: semenova-ip@mail.ru
Россия, Ufa, 450008
I. Semenova
Ufa State Aviation Technical University
Автор, ответственный за переписку.
Email: semenova-ip@mail.ru
Россия, Ufa, 450008
E. Ubyyvovk
St. Petersburg State University
Email: semenova-ip@mail.ru
Россия, St. Petersburg, 199034
R. Valiev
Ufa State Aviation Technical University; St. Petersburg State University
Email: semenova-ip@mail.ru
Россия, Ufa, 450008; St. Petersburg, 199034