Comparison of shape memory behavior and properties of iron-based shape memory alloys containing samarium addition

The effect of a samarium addition on the shape memory behavior of Fe–14Mn–3Si–10Cr–5Ni (wt%) alloys has been studied. It is found that the addition of samarium resulted in 27% increase in the shape memory effect. It was noticed that the addition of samarium had also improved the mechanical properties, increased c/a ratios and inhibited the formation of ά which is considered detrimental for the shape memory behavior. The results of alloys with and without samarium additions are compared to elucidate the beneficial response of samarium.