An FCC phase in a metastable β-titanium alloy

Abstract

A new face-centred-cubic phase is reported here in a metastable β-titanium alloy with an equilibrium α–β structure, formed due to solution treatment and ageing. The face-centred-cubic phase is located inside the close-packed-hexagonal α-phase and has an orientation relationship with α-phase. This new phase could be observed only in thin foils used for transmission electron microscopy. The stability of the new phase is discussed and its presence in thin foils is explained.