Abstract
The effect of the temperature of heating for quenching on the phase composition, structure, and deformability of a high-strength VT22I titanium alloy is studied. After quenching from a critical temperature or above, an unstable β phase forms in the structure of the alloy; upon further deformation up to 3%, this phase transforms into the α” martensite. This process occurs at low stresses (150–200 MPa) and is characterized by an increase in the internal friction of the material, which is related to the high mobility of interfacial and twin boundaries of β-phase and martensite crystals. In VT22I alloy samples quenched from below the critical temperature, a mechanically stable β phase forms; it is deformed according to a slip mechanism at sufficiently high stresses (550 MPa).
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A. A. Il’in, M. Yu. Kollerov, V. K. Nosov, S. V. Skvortsova, A. A. Filatov, and M. B. Samsonova, “Effect of Heat Treatment and Hydrogen Alloying on the Structure and Deformability of Titanium Alloys at Normal Temperature,” Metalloved. Term. Obrab. Met., No. 5, 17–21 (2002).
A. A. Il’in, V. Yu. Kollerov, and I. S. Golovin, “Hydrogen Influence on Plastic Deformation Mechanism of β-Titanium Alloys of Ti-Nb System,” J. Alloys Compd. 253–254, 144–147 (1997).
A. A. Il’in, M. Yu. Kollerov, I. S. Golovin, and A. A. Shinaev, “Forming Mechanisms during Deformation and Heating of Titanium Shape Memory Alloys,” Metalloved. Term. Obrab. Met., No. 4, 12–16 (1998).
V. Yu. Kollerov, A. A. Il’in, D. Yu. Makarenkov, and A. A. Shinaev, “Titanium Alloys with Shape Memory Effect,” in Proceedings of the 2nd Pacific Rim International Conference on Advanced and Processing (1995), pp. 1679–1684.
S. P. Belov, M. Ya. Brun, S. G. Glazunov, et al., Titanium Alloys. Physical Metallurgy of Titanium and Its Alloys (Metallurgiya, Moscow, 1992) [in Russian].
V. Yu. Kollerov, I. S. Golovin, and E. V. Shinaeva, “The Study of Microplasticity Mechanism in Ti-50 wt % Nb Alloy with High Hydrogen Content,” J. Phys. IV 6(8), 289–292 (1996).
A. A. Il’in, M. Yu. Kollerov, V. I. Skvortsov, and D. Yu. Makarenkov, “Technological Aspects of Con- trolling the Shape Recovery Characteristics of Semiproducts and Articles Made of Titanium Nickelide-Based Alloys,” in Proceedings of the 1st International Conference on Titanium of the CIS Countries. Science, Production, and Application of Titanium under Conversion Conditions (VILS, Moscow, 1994), pp. 642–653.
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Original Russian Text © M.Yu. Kollerov, M.B. Afonina, E.V. Shinaeva, I.A. Sharonov, 2010, published in Metally, 2010, No. 1, pp. 74–79.
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Kollerov, M.Y., Afonina, M.B., Shinaeva, E.V. et al. Effect of the quenching temperature on the structure and deformation mechanism of a VT22I alloy. Russ. Metall. 2010, 62–66 (2010). https://doi.org/10.1134/S003602951001012X
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DOI: https://doi.org/10.1134/S003602951001012X