“…If E M < E  , the contribution of the above term is favourable for the transformation, whereas if E M > E  , the contribution of this term can become resistive for the transformation. Earlier studies [17,18] on variation of modulus as a function of Nb content indicate that elastic modulii of martensite ␣ and  are a strong function of Nb content in Ti-Nb system. It is, however, extremely difficult to measure the modulus of the ␣ plates, even by using sophisticated techniques such as nanoindentation, because of their fine size.…”