The effect of mechanical vibrations on the structure formation and mechanical properties of compacts during electron beam sintering is investigated. Using optical microscopy, continuous indentation, and X-ray diffraction, it was established that imposing mechanical vibrations decreases the average titanium grain size by a factor of 1.5–2 and induces residual compressive stresses in the sintered titanium compact. Due to the stresses, greater density, and smaller grains, the ductility and compressive strength of the compacts sintered under mechanical vibrations are higher than those of the compacts sintered in conventional way.
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References
V. N. Antsiferov, V. S. Ustinov, and Yu. G. Olesov, Sintered Titanium-Based Alloys [in Russian], Metallurgiya, Moscow (1984), p. 168.
G. Lutjering and J. C. Williams, Titanium: 2nd ed., Springer-Verlag, Berlin (2007), p. 442.
O. M. Ivasishin, O. B. Bondarchuk, M. M. Gumenyak, and D. G. Savvakin, “Surface phenomena in heated titanium hydride powder,” Fiz. Khim. Tverd. Tela, 12, No. 4, 900–907 (2011).
M. P. Savyak, T. A. Lyudvinskaya, I. I. Timofeeva, et al., “Effect of mechanical activation of titanium hydride on its interaction with nitrogen and oxygen,” Nanostruc. Materialloved., No. 1, 73–80 (2008).
P. I. Loboda, Ye. G. Biba, M. O. Sysoev, and O. S. Gutsu, “Structure and properties of titanium produced by sintering of TiH2 powders,” Fiz. Khim. Tverd. Tela, 12, No. 2, 465–470 (2011).
Ya. S. Umanskii, Yu. A. Skakov, A. N. Ivanov, and L. N. Rastorguyev, Crystallography, X-ray, and Electron Microscopy [in Russian], Metallurgiya, Moscow (1982), p. 632.
A. V. Kulemin, Ultrasound and Diffusion in Metals [in Russian], Metallurgiya, Moscow (1978), p. 200.
V. Khermel’, B. Kiybak, W. Shatt, et al., Mass Transfer Processes During Sintering [in Russian], Naukova Dumka, Kiev (1987), p. 152.
A. V. Belotskii, B. I. Vinnichenko, and I. M. Mukha, Ultrasonic Hardening of Materials [in Russian], Tekhnika, Kiev (1989), p. 168.
O. V. Byakova, O. I. Yurkova, Yu. M. Mil’man, and O. V. Bilots’kii, Basic Theory and Methods for Determining the Mechanical Properties of Materials and Coatings during Macro- and Micro-Indentation: Handbook [in Ukrainian], GARANT-SERVIS, Kiev (2011), p. 144.
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Translated from Poroshkovaya Metallurgiya, Vol. 53, No. 11–12 (500), pp. 15–21, 2014.
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Biba, Y.G., Loboda, P.I. Effect of Mechanical Vibration on the Kinetics of Dehydrogenation and Structure Formation of TiH2 Powder Compacts During Electron Beam Sintering. Powder Metall Met Ceram 53, 628–633 (2015). https://doi.org/10.1007/s11106-015-9659-x
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DOI: https://doi.org/10.1007/s11106-015-9659-x