Solidification profile of Al-33Cu alloy at different casting speeds: (a) 0.0239 m/s, (b) 0.07979 m/s, (c) 0.3989 m/s, (d) 0.79 m/s, (e) 1.59 m/s, (f) 2.39 m/s, (g) 3.19 m/s, and (h) 3.98 m/s.