Modeling analysis of grain morphologies in Directed energy deposition (DED) coating with different laser scanning patterns

Directed energy deposition (DED) is often utilized to coat metallic part with complex geometries in a variety of anti-corrosion materials or high-temperature materials. Computer-controlled scanning patterns always affect the grain morphology in coating, which can further influence coating’s mechanical properties. In this study, a Kinetic Monte Carlo (KMC) Potts model is applied to predict the grain morphology under two different frequently-used...