Temperature (°C) C2. The following questions refer to the phase diagram below: Composition (at% C) 1600 1538°C 1493°C 5 1400 1394°C Y+L 10 15 L 20 25 2500 1200 1147°C 2.14 y, Austenite 4.30 2000 1000 912°C 800 a Y 0.76 600 0.022 a, Ferrite 400 0 2 a+ Fe3C 3 4 y+ Fe3C 727°C 1500 Cementite (Fe3C). 1000 (Fe) Composition (wt% C) For a 8 kg steel alloy containing 1.75 wt % C, answer the following: What phases are present at 800°C and at 1150°C? (a) (b) i) What is the proeutectoid phase for this alloy? 6 6.70 ii) For this specific composition, what is the approximate temperature range that the proeutectoid phase would be formed in? (c) Just above the eutectoid temperature, i) What is the approximate composition of each phase? ii) How many kg of each phase is present? Temperature (°F) 4
Temperature (°C) C2. The following questions refer to the phase diagram below: Composition (at% C) 1600 1538°C 1493°C 5 1400 1394°C Y+L 10 15 L 20 25 2500 1200 1147°C 2.14 y, Austenite 4.30 2000 1000 912°C 800 a Y 0.76 600 0.022 a, Ferrite 400 0 2 a+ Fe3C 3 4 y+ Fe3C 727°C 1500 Cementite (Fe3C). 1000 (Fe) Composition (wt% C) For a 8 kg steel alloy containing 1.75 wt % C, answer the following: What phases are present at 800°C and at 1150°C? (a) (b) i) What is the proeutectoid phase for this alloy? 6 6.70 ii) For this specific composition, what is the approximate temperature range that the proeutectoid phase would be formed in? (c) Just above the eutectoid temperature, i) What is the approximate composition of each phase? ii) How many kg of each phase is present? Temperature (°F) 4
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
Transcribed Image Text:Temperature (°C)
C2.
The following questions refer to the phase diagram below:
Composition (at% C)
1600
1538°C
1493°C
5
1400
1394°C
Y+L
10
15
L
20
25
2500
1200
1147°C
2.14
y, Austenite
4.30
2000
1000
912°C
800
a
Y
0.76
600
0.022
a, Ferrite
400
0
2
a+ Fe3C
3
4
y+ Fe3C
727°C
1500
Cementite (Fe3C).
1000
(Fe)
Composition (wt% C)
For a 8 kg steel alloy containing 1.75 wt % C, answer the following:
What phases are present at 800°C and at 1150°C?
(a)
(b)
i) What is the proeutectoid phase for this alloy?
6
6.70
ii) For this specific composition, what is the approximate temperature range
that the proeutectoid phase would be formed in?
(c)
Just above the eutectoid temperature,
i) What is the approximate composition of each phase?
ii) How many kg of each phase is present?
Temperature (°F)
4
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