Modeling lattice strain evolution during uniaxial deformation of textured Zircaloy-2

An elastoplastic self-consistent model was used to interpret the experimental lattice strain evolution previously reported for testing in three directions of a thick polycrystalline Zircaloy-2 slab. The model was used to infer the underlying deformation mechanisms. The influences of prism 〈a〉 slip, basal 〈a〉 slip, pyramidal 〈c + a〉 slip and tensile twinning were considered. The critical resolved shear stresses and hardening parameters for each...