Abstract
The effect of gallium alloying on the structure, the phase composition, and the properties of quasibinary Ni50Mn50–z Ga z (0 ⩽ z ⩽ 25 at %) alloys is studied over a wide temperature range. The influence of the alloy composition on the type of crystal structure in high-temperature austenite and martensite and the critical martensitic transformation temperatures is analyzed. A general phase diagram of the magnetic and structural transformations in the alloys is plotted. The temperature–concentration boundaries of the B2 and L21 superstructures in the austenite field, the tetragonal L10 (2M) martensite, and the 10M and 14M martensite phases with complex multilayer crystal lattices are found. The predominant morphology of martensite is shown to be determined by the hierarchy of the packets of thin coherent lamellae of nano- and submicrocrystalline crystals with planar habit plane boundaries close to {011} B2. Martensite crystals are twinned along one of the 24 \(24\left\{ {011} \right\}{\left\langle {01\bar 1} \right\rangle _{B2}}\) “soft” twinning shear systems, which provides coherent accommodation of the martensitic transformation–induced elastic stresses.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
V. G. Pushin, E. S. Belosludtseva, V. A. Kazantsev, and N. I. Kourov, Materialovedenie, No. 11, 3 (2012).
V. G. Pushin, N. N. Kuranova, E. B. Marchenkova, E. S. Belosludtseva, V. A. Kazantsev, and N. I. Kourov, Tech. Phys. 58, 878 (2013).
Phase Diagrams of Binary Metallic Systems. A Handbook, Ed. by M. P. Lyakishev (Mashinostroenie, Moscow, 1999), Vol. 3, Part 1, pp. 359–361.
E. Kren, E. Nagy, I. Nagy, L. Pal, and P. Szabo, J. Phys. Chem. Solids 29, 101 (1968).
V. S. Litvinov, I. N. Bogachev, A. A. Arkhangel’skaya, and E. G. Pantsyreva, Fiz. Met. Metalloved. 36, 388 (1973).
K. Adachi and C. M. Wayman, Metall. Trans. A 16, 1581 (1985).
K. Adachi and C. M. Wayman, Metall. Trans. A 16, 1567 (1985).
V. G. Pushin, S. P. Pavlova, and L. I. Yurchenko, Fiz. Met. Metalloved. 67 (1), 164 (1989).
V. G. Pushin, L. I. Yurchenko, A. Yu. Sokolova, and L. Yu. Ivanova, Fiz. Met. Metalloved. 78 (6), 104 (1994).
V. G. Pushin and V. V. Kondrat’ev, Fiz. Met. Metalloved. 78 (5), 40 (1994).
K. Ootsuka, K. Simidzu, Yu. Sudzuki, et al., Alloys with Shape-Memory Effect, Ed. by Kh. Funakubo (Metallurgiya, Moscow, 1990), translated from Japanese.
V. A. Lobodyuk, Yu. N. Koval’, and V. G. Pushin, Fiz. Met. Metalloved. 111 (2), 169 (2011).
A. G. Popov, E. V. Belozerov, V. V. Sagaradze, N. L. Pecherkina, I. G. Kabanova, V. S. Gaviko, and V. I. Khrabrov, Fiz. Met. Metalloved. 102 (2), 152 (2006).
X. Xu, M. Nagasako, W. Ito, R. Y. Umetsu, T. Kanomata, and R. Kainuma, Acta Mater. 61, 6712 (2013).
A. Çakir, M. Acet, and M. Farle, Phys. Status Solidi B 251, 2120 (2014).
P. Entel, M. Siewert, M. E. Gruner, A. Chakrabarti, S. R. Barman, V. V. Sokolovskiy, and V. D. Buchelnikov, J. Alloys Compd. 577, S107 (2013).
Ch. Jiang, Y. Muhammad, L. Deng, W. Wu, and H. Xu, Acta Mater. 52, 2779 (2004).
A. G. Khachaturyan, S. M. Shapiro, and S. Semenovskaya, Phys. Rev. B 43, 10 832 (1991).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © E.S. Belosludtseva, N.N. Kuranova, E.B. Marchenkova, A.G. Popov, V.G. Pushin, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 86, No. 4, pp. 69–75.
Rights and permissions
About this article
Cite this article
Belosludtseva, E.S., Kuranova, N.N., Marchenkova, E.B. et al. Effect of gallium alloying on the structure, the phase composition, and the thermoelastic martensitic transformations in ternary Ni–Mn–Ga alloys. Tech. Phys. 61, 547–553 (2016). https://doi.org/10.1134/S1063784216040083
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063784216040083