General approach to phase stability and elastic properties of β-type Ti-alloys using electronic parameters

 A general correlation between the phase stability and the elastic properties in β(body-centered cubic)-type Ti-alloys is investigated with the aid of two electronic parameters. The extent of the single β-phase field is clearly represented using these parameters. It is also shown that the addition of Al, O, and Sn is effective in modifying greatly the stability of the β-phase, because they work as the β-stabilizing elements in these β-type alloys, resulting in significant changes in the elastic properties of alloys.