The Influence of Structure and Phase Composition of Titanium Alloy on Superplastic Deformation
I. V. Ratochka, O. N. Lykova, I. P. Mishin, E. V. Naydenkin
Российский физический журнал
https://doi.org/10.1007/s11182-018-1590-4
The paper presents research into the behavior of high-temperature plastic deformation of titanium alloy Ti–4.74 wt.% Al–5.57 wt.% Mo–5.04 wt.% V alloy (VT22) depending on its structure and phase composition. It is shown that the formation of fine-grain structure in this alloy is not a sufficient condition for realizing superplastic deformation. It is found that the formation of the ultra-fine grain structure in VT22 alloy leads to the temperature decrease down to 823 K at the beginning of plastic deformation. This allows achieving the percent elongation of the alloy specimens over 1300% within the temperature range of 973–1073 K and at a 6.9·10–3 s–1 initial tensile rate. The grain boundary sliding is considered to be the main deformation mechanism.
- Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, Tomsk, RussiaI. V. Ratochka, O. N. Lykova, I. P. Mishin & E. V. Naydenkin
- National Research Tomsk Polytechnic University, Tomsk, RussiaE. V. Naydenkin
- B. A. Kolachev, V. I. Elagin, and V. A. Livanov, Physical Metallurgy and Thermal Treatment of Non-Ferrous Metals and Alloys [in Russian], MISIS, Moscow (2005), 432 p.
- A. A. Il’in, B. A. Kolachev, and I. S. Pol'kin, Titanium Alloys. Composition, Structure, Properties: manual [in Russian], VILS–MATI, Moscow (2009), 520 p.
- E. V. Naydenkin, I. V. Ratochka, and G. P. Grabovetskaya, Mater. Sci. Forum, 667–669, 1183–1188 (2011).
- O. A. Kaibyshev, Superplasticity of Industrial Alloys [in Russian], Metallurgiya, Moscow (1984), 264 p.
- T. G. Nieh, J. Wadsworth, and O. D. Sherby, Superplasticity of Metals and Ceramics, Cambridge University Press, Cambridge (1997).
- O. A. Kaibyshev and F. Z. Utyashev, Superplasticity, Structure Refinement and Treatment of Hard-To-Deform Alloys [in Russian], Nauka, Moscow (2002), 438 p.
- Yu. R. Kolobov, R. Z. Valiev, G. P. Grabovetskaya, et al., Grain-Boundary Diffusion and Properties of Nanostructured Materials [in Russian], Nauka, Novosibirsk (2001), 232 p.
- R. Z. Valiev and I. V. Aleksandrov, Volume Nanostructured Metallic Materials, Akademkniga, Moscow (2007), 398 p.
- A. P. Zhilyaev and A. I. Pshenichnyuk, Superplasticity and Grain Boundaries in Ultrafine-Grained Materials, Woodhead Publishing Ltd., (2011), 328 p.
- V. E. Egorushkin and V. E. Panin, Phys. Mesomech., 20, No. 1, 5–13 (2017).
- E. Alabort, P. Kontis, D. Barbar, et al., Acta Mater., 105, 449–463 (2016).
- H. Matsumoto, K. Yoshida, S-H. Lee, et al., Mater. Lett., 98, 209–212 (2013).
- E. V. Naydenkin, I. V. Ratochka, I. P. Mishin, et al., J. Mater. Sci., 52, No. 8, 4164–4171 (2017).
- L. A. Elagina, B. F. Brailovskaya, and B. A. Kapitonov, Tsvetnye metally, No. 2, 63–66 (1979).
- S. V. Zherebtsov, S. A. Kostyuchenko, E. A., Kudryavtsev, and G. A. Salishchev, Vestnik UGATU, 16, No. 7(52), 25–29 (2012).
- I. V. Ratochka and O. N. Lykova, Perspektivnye materialy, No. 12, 65–71 (2016).
- M. Ashida, P. Chen, H. Doi, et al., Mater. Sci. Eng. A, 640, 449–453 (2015).
- V. A. Vinokurov, I. V. Ratochka, E. V. Naydenkin, I. P. Mishin, and N. V. Rozhintseva, RF Patent No. 2388566 (May 10, 2010).
- E. V. Naydenkin, I. V. Ratochka, I. P. Mishin, and O. N. Lykova, Russ. Phys. J., 58, No. 8, 1068–1073 (2015).