Use the phase diagram below to answer the following questions. For an alloy of 40 wt\% B: (a) Draw the microstructure at 1200C (b) Write out the phase reaction at 940C. What type of three phase reaction is this? (c) Draw the microstructure at 800C (d) Determine the amount of each phase at 800C (e) Draw the microstructure at 600C (f) Determine the amount of each phase at 600C