keywords 3-DIMENSIONAL CELLULAR-AUTOMATON Additive manufacturing COLUMNAR DENDRITIC GRAINS Engineering Engineering, Manufacturing FINITE-ELEMENT MODEL GRAIN MORPHOLOGY EVOLUTION GROWTH COMPETITION MECHANICAL-PROPERTIES MONTE-CARLO-SIMULATION Materials Science Materials Science, Multidisciplinary Microstructure PHASE-FIELD SIMULATION POWDER BED FUSION SAMPLE DIRECTIONAL SOLIDIFICATION Science & Technology Simulation Solidification Technology