J. Phys. III France 2 (1992) 739-749
The crystal structure of thermally- and stress-induced Martensites in Ni 2MnGa single crystalsV. V. Martynov and V. V. Kokorin
Institute of Metal Physics, Academy of Sciences of Ukraine, Vernadskogo str. 36, 252680, Kiev-142, Ukraine
(Received 13 September 1991, accepted 30 January 1992)
Deformation behavior of Ni 2MnGa single crystals uniaxially loaded in compression and tension along the and axes were investigated. It was shown that three successive stress-induced structural transitions may be observed for specimens tensed along the or compressed along the direction, while only one transition was stress-induced in compression along the axis. The crystal structure of stress-induced and thermal martensite was identified and related reversible deformation values for different loading geometry were estimated.
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