b) For the Iron (Fe)-Carbon (C) binary equilibrium phase diagram shown below, answer the following questions: 1600 1538C 10 Composition (% C 15 Temperature (C 1493C 1400 1394C Y+L 1200 1000 912C 800 0.76 2.14 1147C 600 0.022 a. Ferrite +FeC 400 (Fe) P +4 Composition (wt% C) 727C 2500 2000 1500 Cementite (FeyC). 1000 6.70 (1) Temperature diagram h d. For a 99.6 wt% Fe- 0.40 wt% C at a temperature just below the eutectoid, make schematic sketches of the microstructure that would be observed for conditions of slow cooling at the following temperatures: 800C and room temperature. Label all phases. [2 Marks]