For parts (a), (c), (d), (f), and (h) of Problem

For parts (a), (c), (d), (f), and (h) of Problem 10.20, determine the approximate percentages of the microconstituents that form.
(a) Rapidly cool to 250(C (480(F), hold for 103 s, then quench to room temperature.
(c) Rapidly cool to 400(C (750(F), hold for 500 s, then quench to room temperature.
(d) Rapidly cool to 700(C (1290(F), hold at this temperature for 105 s, then quench to room temperature
(f)Rapidly cool to 450(C (840(F), hold for 10 s, then quench to room temperature.
(h) Rapidly cool to 625(C (1155(F), hold at this temperature for 10 s, rapidly cool to 400(C (750(F), hold at this temperature for 5 s, then quench to room temperature.