Competitive growth of leading phase and tensile properties of directionally solidified eutectic Al-Ni alloy

The dependence of the leading phase on growth velocity in directionally solidified Al-10at.%Ni alloy was determined through the maximum interface temperature criterion. In-situ composite with good strength and ductility can be obtained through directional solidification when the finer bulk Al3Ni phase being the leading phase at higher growth velocities.