In situ study to understand the effect of cooling rate on the phase transformation behaviour of metastable -Ti alloy, Ti-5Al-5Mo-5V-3Cr

We performed high-throughput in situ electrical resistance measurement experimentation to understand the effect of cooling rate on the phase transformation behaviour of Ti-5Al-5Mo-5V-3Cr beta-Ti alloy. The results suggest the presence of two alpha-phase variants and that the formation of alpha-phase starts with a cooling rate of 0.5 degrees C/s. A slow cooling rate (0.1 degrees C/s) can be used to obtain similar microstructure and hardness (similar to 430 Hv) than fast cooling followed by an ageing treatment.