Effects of step size and cut-off limit of residual liquid amount on solidification simulation of Al–Mg–Zn system with Scheil model

The effects of the step size and the cut-off limit of the residual liquid amount on the solidification simulation with Scheil model have been analyzed. A non-zero cut-off limit may terminate the solidification simulation with a larger simulation step size before a eutectic reaction is reached. Although a larger temperature step size can increase the simulation efficiency, it could significantly reduce the accuracy of the simulation modeling such as the amounts of solidified phases. Al–Mg–Zn ternary system is taken as an example to demonstrate the effects.