Phase transformation and microstructure evolution of differently processed Ti-45Al-9Nb-Y alloy

► The volume fraction of β/B2-phase is different of differently processed alloy. ► Deformation-induced γ → α2-phase transformation occurs during hot rolling. ► Massive β/B2-phase decomposes into γ laths in rolling process. ► Omega-phase forms in the result of the transformation β → ω in the hot deformed alloy.