Structure Formation, Mechanical and Functional Properties of Ti-Ni SMA, Deformed by Compression in a Wide Temperature Range
Irina Yu. Khmelevskaya, Viktor S. Komarov, Ivan A. Postnikov, Roman D. Karelin, Grzegorz Korpala, Rudolf Kawalla, Sergey D. Prokoshkin
Abstract. The structure, mechanical and functional properties of the aging Ti-50.8 at.% Ni shape memory alloy after deformation by compression in a wide temperature range of
100–900 °С and post-deformation annealing at 430 °С was studied. The temperature regions of dynamic softening processes (recovery, polygonization and recrystallization) were determined as a result of comparative study (TEM, X-ray, changes in properties). It was found that dispersion hardening due to precipitation of Ti3Ni4 phase particles is accompanied by an increase in functional properties.
Keywords
Shape Memory Alloys, Ti-Ni, Structure Formation, Aging, Dynamic Softening
Published online 11/15/2018, 5 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Irina Yu. Khmelevskaya, Viktor S. Komarov, Ivan A. Postnikov, Roman D. Karelin, Grzegorz Korpala, Rudolf Kawalla, Sergey D. Prokoshkin, ‘Structure Formation, Mechanical and Functional Properties of Ti-Ni SMA, Deformed by Compression in a Wide Temperature Range’, Materials Research Proceedings, Vol. 9, pp 38-42, 2018
DOI: http://dx.doi.org/10.21741/9781644900017-8
The article was published as article 8 of the book Shape Memory Alloys
References
[1] S.D. Prokoshkin, V. Brailovskii, A.V. Korotitskiy, K.E. Inaekyan, A.M. Glezer, Specific features of the formation of the microstructure of titanium nickelide upon thermomechanical treatment including cold plastic deformation to degrees from moderate to severe, Phys. Metals. Metallogr., 110 (2010) 289-303. https://doi.org/10.1134/S0031918X10090127
[2] R.Z. Valiev, I.V. Aleksandrov, Nanostructural Materials Obtained by Severe Plastic Deformation, Integratsiya, Moscow, 2000.
[3] I.Yu. Khmelevskaya, R.D. Karelin, S.D. Prokoshkin, V.A. Andreev, V.S. Yusupov, M.M. Perkas, V.V. Prosvirnin, A.E. Shelest, V.S. Komarov, Effect of the quasi-continuous equal-channel angular pressing on the structure and functional properties of Ti-Ni-based shape-memory alloys, Phys. Metals Metallogr., 118 (2017), 279-287. https://doi.org/10.1134/S0031918X17030073
[4] S. Prokoshkin, I. Khmelevskaya, V. Andreev, R. Karelin, V. Komarov, A. Kazakbiev, Manufacturing of Long-Length Rods of Ultrafine-Grained Ti-Ni Shape Memory Alloys, Mater. Sci. Forum, 918 (2018) 71-76. https://doi.org/10.4028/www.scientific.net/MSF.918.71
[5] I. Khmelevskaya, V. Komarov, R. Kawalla, S. Prokoshkin, G. Korpala, Effect of Biaxial Isothermal Quasi-Continuous Deformation on Structure and Shape Memory Properties of Ti-Ni Alloys, J. Mater. Eng. Perform. 26 (2017) 4011-4019. https://doi.org/10.1007/s11665-017-2841-1
[6] I. Khmelevskaya, V. Komarov, R. Kawalla, S. Prokoshkin, G. Korpala, Features of Ti-Ni alloy structure formation under multi-axial quasi-continuous deformation and post-deformation annealing, Mater. Today: Proc., 4 (2017) 4830-4835. https://doi.org/10.1016/j.matpr.2017.04.079
[7] I.Yu. Khmelevskaya, S.D. Prokoshkin, I.B. Trubitsyna, M.N. Belousov, S.V. Dobatkin, E.V. Tatyanin, A.V. Korotitskiy, V. Brailovski, V.V. Stolyarov, E.A. Prokofiev, Structure and properties of Ti-Ni-based alloys after equal-channel angular pressing and high-pressure torsion, Mater. Sci. Eng. A, 481-482 (2008) 119-122. https://doi.org/10.1016/j.msea.2007.02.157
[8] M.S. Shakeri, J. Khalil-Allafi, V. Abbasi-Chianeh, Arash Ghabchi, The influence of Ni4Ti3 precipitates orientation on two-way shape memory effect in a Ni-rich NiTi alloy, J. All. Compd. 485 (2009) 320-323. https://doi.org/10.1016/j.jallcom.2009.05.084
[9] K.A. Polyakova-Vachiyan, E.P. Ryklina, S.D. Prokoshkin, S.M. Dubinskii, Dependence of the functional characteristics of thermomechanically processed titanium nickelide on the size of the structural elements of austenite, Phys. Metals Metallogr. 117 (2016) 817-827. https://doi.org/10.1134/S0031918X16080123
[10] V.S. Komarov, Flow Curves, structure and properties of bulk Ti-Ni alloys, deformed at isothermal conditions, Dissertation (Eng.), NUST MISiS, Moscow, 2018.
