Q) Consider a 1.5 kg of a 99.7 wt% Fe-0.3 wt% C alloy that is cooled to a temperature just below the eutectoid. (a) How many kilograms of proeutectoid ferrite? (b) How many kilogram of cementite form ? (c) How many kilograms of all ferrite form? And How many kilograms of cutectoid ferrite?

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q) Consider a 1.5 kg of a 99.7
wt% Fe-0.3 wt% C alloy that
is cooled to a temperature
just below the eutectoid.
(a) How many kilograms of proeutectoid ferrite?
(b) How many kilogram of cementite form ?
(c) How many kilograms of all ferrite form? And How many kilograms of cutectoid ferrite?

Composition (at% C)
10
15
20
25
1600
1538°C
1493°C
L.
1400
2500
1394°C
7+L
1200
1147°C
2.14
4.30
7. Austenite
2000
1000
912°C
7+ Fe;C
800
1500
727°C
0.76
0.022
600
a, Ferrite
a+ FegC
Cementite (Fe:C)
1000
400
3
6.
6.70
(Fe)
Composition (wt% C)
Temperature ("C)
Temperature ("F)
Transcribed Image Text:Composition (at% C) 10 15 20 25 1600 1538°C 1493°C L. 1400 2500 1394°C 7+L 1200 1147°C 2.14 4.30 7. Austenite 2000 1000 912°C 7+ Fe;C 800 1500 727°C 0.76 0.022 600 a, Ferrite a+ FegC Cementite (Fe:C) 1000 400 3 6. 6.70 (Fe) Composition (wt% C) Temperature ("C) Temperature ("F)
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