Design of mechanical properties of Al-alloys chill castings based on the metal/mold interfacial heat transfer coefficient

► Solidification thermal parameters depend on the heat transfer coefficient, hi. ► hi determines the solidification microstructure including morphology and scale. ► hi varies in time with an expression hi=at−m, m < 0.5 and a depends on alloy composition. ► The mechanical properties can be correlated with the instantaneous value of hi.