There is an inherent relationship between the material microstructure and the final material properties of a component. In titanium alloys, the balance of alpha/beta phases plays a major role in determining the final mechanical, corrosion, and creep properties. This phase balance can vary as a function of cooling rate. Thermo-Calc can simulate phase balance and precipitation behavior as a function of thermal history.
This figure shows the simulated amount of alpha phase in Ti-6Al-4V alloys as a function of cooling rate from 950 °C using the Diffusion Module (DICTRA) (recalculated based on data from Martukanitz et al., Addit. Manuf., vol. 1–4, pp. 52–63, 2014). The final amount of alpha is reduced as the cooling rate is increased.