Critical stress for the bcc–hcp martensite nucleation in Ti–6.25at.%Ta and Ti–6.25at.%Nb alloys

Abstract

Martensitic transformation is an important deformation mechanism in titanium alloys. Using density functional theory calculations, we establish the lattice constants and the associated energetics of the bcc–hcp transformation in Ti–6.25at.%Ta and Ti–6.25at.%Nb alloys. We present a bcc–hcp nucleation model based on the Peierls Nabarro formalism… (More)

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