Numerical modelling of solidification of castings made of two‐component alloys

The paper deals with a numerical modelling of equiaxed microstructure formation during the solidification of two‐component alloys. The basic enthalpy formulation was applied to model the solidification. The equiaxed grain size was dependent on the average cooling velocity at the moment when the liquid metal reaches the liquidus temperature. The experimentally determined dependence between grain radius and cooling velocity was used in the calculation of average grain radii distribution.