For parts (a), (c), (d), (f), and (h) of Problem 10.20, determine the approximate percentages of the

Question:

For parts (a), (c), (d), (f), and (h) of Problem 10.20, determine the approximate percentages of the micro constituents that form.
Problem 10.20
(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.