Effect of boron on the beta transus of Ti-6Al-4V alloy

The influence of boron on the β transus of Ti-6Al-4V is established in a powder metallurgy Ti-6Al-4V-1.7B alloy using microstructural analysis, electrical resistivity, and dilatometry. An increase in the β transus by ∼60 °C was observed, which is attributed to the equilibrium as well as to supersaturated B in the solid solution.