Modeling of texture development in additive manufacturing of Ni-based superalloys

Solidification and inelastic thermal strains are the sources of development of crystallographic texture in metallic parts additively manufactured. This works provides a simulation framework to account for evolution of texture in additive manufacturing of Ni-based superalloys by considering both solidification and thermal strain contributions to formation of texture. A novel and validated physics-based approach yields the thermal strains as a result of different cooling rates in the part, and a modified crystal plasticity formalism alters a theoretical solidification texture to obtain the final orientation attributes. Results show close consistency with independent experimental reports with a better agreement, compared to current modeling approaches which only consider the contribution of solidification to texture development.