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

摘要

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 (S (E) over bar (c)) as well as cohesive energy difference (Delta(E) over bar (c)) for alpha and beta phases can be used to investigate the influence of alloying elements on the allotropic transformation of beta to alpha Moreover, the deterministic model agrees well with the experimental results. (C) 2015 Elsevier B.V. All rights reserved.