Simulation of dendritic deformation induced by convection in alloy solidification

Abstract Dendritic deformation induced by convection of thermal fluid is one the factors leading to dendrite fragmentation and plays a crucial role in grain structure alloy, which lacks in-depth understanding. In this paper, we simulate flow-induced mechanical dendrites during solidification Al-4.5wt.%Cu alloy combining cellular automaton-finite volume method (CA-FVM) for growth finite element (FEM) handling dendritic with complex boundary conditions given CA-FVM results. It shows that strongly depends on flow velocities melt morphology. The can undergo visible bending above critical yield (ranging from 0.023 m/s 0.126 as inlet velocity increases) von Mises stress increases enhanced process.