Effect of Structural and Phase State on the Creep of an Ultrafine-Grained Ti–Al–V–Mo Titanium Alloy
- Autores: Grabovetskaya G.1, Zabudchenko O.1, Mishin I.1, Ratochka I.1, Lykova O.1
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Afiliações:
- Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
- Edição: Volume 120, Nº 5 (2019)
- Páginas: 499-505
- Seção: Strength and Plasticity
- URL: https://journals.rcsi.science/0031-918X/article/view/168514
- DOI: https://doi.org/10.1134/S0031918X19020030
- ID: 168514
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Resumo
The effect of the phase composition on the regularities of creep of the ultrafine-grained Ti–Al–V–Mo titanium alloy at the temperature of 723 K and in the range of strain rates from 10–7 to 10–5 s–1 has been studied in this work. It has been found that the formation of the nonequilibrium phase composition in the ultrafine-grained alloy leads to a violation of the power law of creep. It has been shown that this violation is associated with the development of the β → α phase transformation during creep and with the redistribution of alloying elements. The physical causes of a decrease in the effective energy of activation of the creep of the alloy with ultrafine-grained structure and nonequilibrium phase composition have been discussed.
Sobre autores
G. Grabovetskaya
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Autor responsável pela correspondência
Email: grabg@ispms.tsc.ru
Rússia, Tomsk, 634021
O. Zabudchenko
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: grabg@ispms.tsc.ru
Rússia, Tomsk, 634021
I. Mishin
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: grabg@ispms.tsc.ru
Rússia, Tomsk, 634021
I. Ratochka
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: grabg@ispms.tsc.ru
Rússia, Tomsk, 634021
O. Lykova
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: grabg@ispms.tsc.ru
Rússia, Tomsk, 634021