Role of Interstitial Oxygen Atom on Martensitic Transformation of Ti-Nb Alloy
The effect of oxygen content on the stability of α′′ martensite phase of the Ti-20mol%Nb alloy was investigated by differential scanning calorimetry. The reverse martensitic transformation temperature increased with increasing oxygen content, and this means that α′′ martensite phase was stabilized by oxygen addition. The mechanism of α′′ martensite stabilization by oxygen atoms was discussed based on the changes in the lattice parameters of α′′ martensite.
M. Tahara et al., "Role of Interstitial Oxygen Atom on Martensitic Transformation of Ti-Nb Alloy", Advances in Science and Technology, Vol. 97, pp. 115-118, 2017