Effect of aging on martensitic transformation behavior of Ti 48.8Ni50.8V0.4 alloy

In this article, the effect of aging on martensitic transformation of Ti48.8Ni50.8V0.4 alloy was investigated. The results show that the martensitic transformation of the solution-treated shape memory alloy is a typical singlestage transformation process. The transformation temperatures of the samples aged at different temperatures for 0.5 h were lower as compared to that of the solution-treated alloy. With the increase of aging temperature, the transformation temperatures increase. After aging at 500 ??C, the samples exhibit a multiple-stage transformation. The samples after aging at 500 ??C for more than 5 h resulted in the transformation sequence of A ?? R??M1 and A ?? M2 upon cooling and M2 ?? A and M1 ?? A upon heating. ? Springer Science+Business Media, LLC 2011.EI196432-64364