SHAPE MEMORY EFFECT OF POLYCRYSTALLINE Fe-Mn-Si ALLOYS

The influence of quenching temperature on the shape memory effect(SME)of theFe-Mn-Si polycrystalline alloys and their martensitic transformation temperature have beenstudied.The SME of the hot-rolled specimen may be remarkably enhanced by selectingquenching temperature of 600—800℃.It has been shown that SME is influenced not only bythe distribution of ε-phase morphology but also by its pre-existence.