Differential scanning calorimetry and reaction kinetics studies of γ + α2 Ti aluminide

► Reaction kinetics studies of Ti-aluminide alloy powder mixtures carried out. ► Five compositions studied through non-isothermal differential scanning calorimetry. ► Effect of minor boron addition and role of Ti particle size is noted. ► Activation energies using JMA equations are between 169.5 and 192.49 kJ mol−1.