Shape Memory Effects in FeNiCoTi Single Crystals Undergoing y γ-<->α' Thermoelastic Martensitic Transformations

摘要

In Fe-Ni alloys undergoing γ <-> α ' martensitic transformations (MTs), where 7 is the high-temperature fee phase (austenite) and α' is the low-temperature bec phase (martensite), temperature hysteresis ΔT 300-350 K is observed and such transformations are not thermoelastic [1-9].