1. Name the microstructural products of eutectoid iron-carbon alloy (0.76 wt% C) speci- mens that are first completely transformed to austenite, then cooled to room temperature at the following rates: (a) 1°C/s, (b) 20°C/s, (c) 50°C/s, and (d) 175°C/s.
2. Figure 10.40 shows the continuous cooling transformation diagram for a 0.35 wt% C iron-carbon alloy. Make a copy of this figure and then sketch and label continuous cooling curves to yield the following microstructures:
(a) Fine pearlite and proeutectoid ferrite
(b) Martensite
(c) Martensite and proeutectoid ferrite
(d) Coarse pearlite and proeutectoid ferrite
(e) Martensite, fine pearlite, and proeutec- toid ferrite