Materials information and mechanical response of TRIP/TWIP Ti alloys

Abstract Materials innovation calls for an integrated framework combining physics-based modelling and data-driven informatics. A dislocation-based constitutive model accounting both transformation-induced plasticity (TRIP) twinning-induced (TWIP) was built to interpret the mechanical characteristics of metastable titanium alloys. Particular attention placed on quantitatively understanding composition-sensitive phase stability its influence underlying deformation mechanism. For this purpose, a pseudoelastic force balance incorporating thermodynamics micromechanics applied calculate energy landscapes ? ? ? ? martensitic transformation, {332}?113? twinning dislocation slip. Extensive material data were probed, computed fed model. Our results revealed that TRIP TWIP may operate simultaneously because presence noticeably overlapped domain, confirmed is energetically favourable The validation further unveiled activation transition remarkably enhances strain-hardening plasticity, even though dynamically formed volume fraction much less than twinning. work suggests synchronised physical metallurgy strategy allows identify compositional scenarios developing high-performance engineering