JUMPING AT STRAIN RECOVERY IN SHAPE MEMORY Cu-Al-Ni SINGLE CRYSTALS

V.I. Nikolaev, R.B. Timashov, S.A. Pulnev, L.I. Guzilova, P.N. Butenko & S.I. Stepanov
Shape memory Cu-Al-Ni single crystals of two alloy compositions Cu 82.5 wt.% - Al 13.5 wt.% - Ni 4.0 wt.% and Cu 81.98 wt.% - Al 14.02 wt.% - Ni 4.0 wt.% have been studied in view of their ability to undergo spontaneous jumping during reverse martensitic transformation. Crystals of both alloys were compressively deformed up to a full shape memory strain (8%) at room temperature. It was found that specimens of the first alloy...
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