Abstract

The temperature interval ΔTSE of superelasticity in [001]-, [\( \bar 1 \)23]-, and [\( \bar 1 \)24]-oriented Co40Ni21Ga30 (at. %) single crystals strained at compression has been studied. It is established that ΔTSE in the [001]-oriented single crystal amounts to 441 K and the reversible B2-L10 martensite transformations in loaded samples take place at T2 = 698 K. In [\( \bar 1 \)23]- and [\( \bar 1 \)24]-oriented samples, ΔTSE decreases to 233 K and the superelasticity is observed up to T2 = 523 K.

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