Estimation of the shifting distance of the eutectic point in hypereutectic Al–Si alloys by the lever rule

A method is proposed to estimate quantitatively the shifting distance of the eutectic point in a horizontal direction (under non-equilibrium solidification condition). The shifting distances of the eutectic point in Al–20 wt.%Si alloys under the non-equilibrium solidification condition are 0.4 and 0.9 wt.% in a horizontal direction towards higher silicon contents with the addition of 0 and 3 wt.% master alloys (Al–20 wt.%Y2O3), respectively.