Consider an Al-4% Si alloy (Figure 11-19). Determine
(a) If the alloy is hypoeutectic or hypereutectic;
(b) The composition of the first solid to form during solidification;
(c) The amounts and compositions of each phase at 578 ˚C;
(d) The amounts and compositions of each phase at 576 ˚C;
(e) The amounts and compositions of each microconstituent at 576 ˚C; and
(f) The amounts and compositions of each phase at 25 ˚C.