1) Draw the phase diagram and make the necessary calculations. (25pts) a) Draw A-B phase diagram with A2B intermetallic at 80%B. -Melting temp of A: 650C -Melting temp of B: 350C -Melting temp of A2B:550C -First Eutectic temp: 450C at 65%B -Second Eutectic temp: 250C at 95%B -Max Solubility B in A is 40% -Max Solubility A in B is 2% -Negligible solubility below 100C. b) What are composition and weight ratio of present phases for 50% and 85%B at 460C and 300C? c) Show the microstructures of 35%B, 50%B and 75%B at 460C and 200C.