d) Determine the mass fractions and composition of the phases present at e) Draw a schematic cooling curve for this alloy. f) Sketch the microstructure changes during solidification. A 1000 -Liquidus Liquid Figure2 2000 1800 Temperature (°C) 800 a B 8.0 600 Solvus 400 C Solidus 2000 (Cu) 20 20 a +L 1600 779°C (T) G 71.9 (C) 91.2 1400 B (Cog) 1200 1000 800 500 H 400 60 BO 100 (Ag) 40 Composition wt% Ag)