7. Consider 1.5 kg of a 99.6 wt% Fe-0.4 wt% C steel that is cooled to a temperature just below the eutectoid. (a) How many kilograms of ferrite (a) form? (b) How many kilograms of cementite (Fe,C) form? Include your tie line in the solution.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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7. Consider 1.5 kg of a 99.6 wt% Fe-0.4 wt% C steel that is cooled to a temperature just below
the eutectoid.
(a) How many kilograms of ferrite (a) form?
(b) How many kilograms of cementite (Fe;C) form?
Include your tie line in the solution.
1600|
L
1400
T(°C)
1200
(austenite)
y+L
1148°C
L+Fe;C
1000
Y + Fe;C
800
727°C
600
a + Fe;C
400
1
2
4
6
6.7
C, wt% C
Fe;C (cementite)
Transcribed Image Text:7. Consider 1.5 kg of a 99.6 wt% Fe-0.4 wt% C steel that is cooled to a temperature just below the eutectoid. (a) How many kilograms of ferrite (a) form? (b) How many kilograms of cementite (Fe;C) form? Include your tie line in the solution. 1600| L 1400 T(°C) 1200 (austenite) y+L 1148°C L+Fe;C 1000 Y + Fe;C 800 727°C 600 a + Fe;C 400 1 2 4 6 6.7 C, wt% C Fe;C (cementite)
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