Mechanical Properties of the TiNi and Surface Alloy Formed by Pulsed Electron Beam Treatment
Alexey A. Neiman, Regina R. Mukhamedova, Viktor O. Semin
Abstract. The mechanical properties of the TiNi-based alloy irradiated with microsecond low-energy high-current pulsed electron beam (LEHCPEB) as well as the Ti-Ta-Ni surface alloy were investigated. It was shown that surface modification by LEHCPEB of the TiNi alloy increases the hardness on average by 20 % compared to its initial value. Stress-strain curves as a function of temperature, corresponding to different structure (martensitic and austenitic) states of the TiNi alloy, displayed pseudoelastic behavior with almost completely recovering strain upon unloading.
Shape Memory Alloys, Electron Beam Treatment, Superelasticity, Hardness
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: Alexey A. Neiman, Regina R. Mukhamedova, Viktor O. Semin, ‘Mechanical Properties of the TiNi and Surface Alloy Formed by Pulsed Electron Beam Treatment’, Materials Research Proceedings, Vol. 9, pp 58-62, 2018
The article was published as article 12 of the book Shape Memory Alloys
 T. Yoneyama, S. Miyazaki (Eds.), Shape memory alloys for biomedical applications, Cambridge, England, 2009.
 V. Rotshtein, Y. Ivanov, A. Markov, Surface treatment of materials with low-energy, high-current electron beams, in: Y. Pauleau (Ed.), Materials surface processing by directed energy techniques, Elsevier, Oxford, 2006, pp. 205-240. https://doi.org/10.1016/B978-008044496-3/50007-1
 S.N. Meisner, E.V. Yakovlev, V. O. Semin, L. L. Meisner, V.P. Rotshtein, A. A. Neiman, F. D. D’yachenko, Mechanical behavior of Ti-Ta-based surface alloy fabricated on TiNi SMA by pulsed electron-beam melting of film/substrate system, Appl. Surf. Sci. 437 (2018) 217-226. https://doi.org/10.1016/j.apsusc.2017.12.107
 A.A. Neiman, L.L. Meisner , A.I. Lotkov, N.N. Koval, V.O. Semin, A.D. Teresov, Cross-sectional TEM analysis of structural phase states in TiNi alloy treated by a low-energy high-current pulsed electron beam, Appl. Surf. Sci. 327 (2015) 321-326. https://doi.org/10.1016/j.apsusc.2014.11.173
 A.B. Markov, Mechanisms for modification of carbon steels under the action of a high-energy, high-current electron beam, Russ. Phys. J. 42 (1999) 293-298. https://doi.org/10.1007/BF02508310