A Review on Modelling and Simulation of Laser Additive Manufacturing: Heat Transfer, Microstructure Evolutions and Mechanical Properties

Modelling and simulation are very important for revealing the relationship between process parameters internal variables like grain morphology in solidification, precipitate evolution, solid-state phase transformation laser additive manufacturing. The impact of microstructural changes on mechanical behaviors is also a hot topic Here we reviewed key developments thermal modelling, simulations, predictions properties A volumetric heat source model, including Gaussian double ellipsoid sources, introduced. main methods used microstructures, Monte Carlo method, cellular automaton, field mainly described. impacts microstructures revealed by physics-based models evolution based model dislocation crystal plasticity model. issues modelling manufacturing addressed.