An Al-Si alloy phase diagram is shown in Figure Q3. The eutectic point is at Temperature (C) 1500 1000 500 1.65 12.6 0 AI a + L 12.6wt%Si. 20 L 40 577 a + B 60 B+L Weight percent silicon Figure Q3: Al-Si binary phase diagram Consider an Al-4% Si alloy (Figure x). Determine: (iii) The compositions of each phase at 25C. 80 (i) The amounts and compositions of each phase at 578C, (ii) The compositions of each phase at 576C, 99.83 B- Si [10%] [5%] [5%]