| In this investigation the role of the nanocrystalline ω phase on the formation of ω' in the bulk two-phase titanium alloys with Widmanstatten microstructures is examined. The α-ω misfit strain places stress on ω planes that assist the ω→α' transformation, and shear stresses from slip and twinning in the α phase act on the ω→α' transformation shear systems. TEM and HREM were used to measure the α and ω lattice parameters, determine the orientation relationships of α, β, ω, and α' and observe the nature of the α-ω and α-α' interfaces. |
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