Simulation of dislocation slip and twin propagation in Mg through coupling crystal plasticity and phase field models

A numerical strategy to simulate plastic deformation in Mg alloys including dislocation slip and twin propagation is presented. Dislocation included through a crystal plasticity model which solved using the finite element method while taken into account by means of phase field fast Fourier transform algorithm. The coupled equations were different discretizations simulation domain same time step for both them. was used compression micro-pillar along [101̄0] direction. stress–strain curve predicted as well dominant mechanisms agreement with experimental data literature demonstrate viability take explicitly during alloys. Finally, an example slip/twin interaction polycrystals simulated show capabilities model.