Effect of Orientation on the High-Temperature Superelasticity in Co49Ni21Ga30 Single Crystals
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The temperature interval T SE of superelasticity in -, -, and -oriented Co40Ni21Ga30 (at. %) single crystals strained at compression has been studied. It is established that T SE in the -oriented single crystal amounts to 441 K and the reversible B2-L10 martensite transformations in loaded samples take place at T 2 = 698 K. In - and -oriented samples, T SE decreases to 233 K and the superelasticity is observed up to T 2 = 523 K. 2009 Pleiades Publishing, Ltd.