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Molar volumes of bcc, hcp, and orthorhombic Ti-base solid solutions at room temperature

2016; Elsevier BV; Volume: 52; Linguagem: Inglês

10.1016/j.calphad.2016.01.003

1873-2984

Jiayi Yan, Gregory B. Olson,

Intermetallics and Advanced Alloy Properties

The room-temperature molar volumes of bcc (β), hcp (equilibrium α or martensitic α′), and orthorhombic (martensitic α′′) phases are modeled for a number of Ti-base solid solutions in the CALPHAD framework. The martensitic molar volume is continuous at the α′/α′′ transition composition. Hcp and orthorhombic structures are modeled separately, and the predicted martensitic structure is taken as the denser one.