Analysis of the effect of alloy elements on allotropic transformation in titanium alloys with the use of cohesive energy

A simple model to account for the effect of alloy elements on allotropic transformation in titanium alloys is described using the cohesive energies calculated with the self-consistent bond length difference (SCBLD) method in the empirical electron theory (EET) of solids and molecules. The results indicate the total cohesive energy (SE‾c) as well as cohesive energy difference (ΔE‾c) for α and β phases can be used to investigate the influence of alloying elements on the allotropic transformation of β to α. Moreover, the deterministic model agrees well with the experimental results.