SIMULATION OF SOLIDIFICATION OF MULTICOMPONENT ALLOYS

Two different models have been applied to simulate the solidification of different multicomponent alloys using thermodynamic calculation met hods. The Scheil model could successfully be used to simulate the comp lex phase precipitation and microsegregation observed during cooling o f commercial aluminum alloys at low cooling rates. The second model ta king into account multicomponent solid-state diffusion is applied to t he solidification of different steel grades and especially to the peri tectic reaction. Example results are presented for a carbon steel and a chromium steel. The results are in good agreement with experimental data reported in the literature.