Temperature (°C) 1600 1538°C -1493°C 1400 1394°C Y+Z 1200 y, Austenite 2.14 1000 912°C 800 + 600 400 0.76 0.022 a, Ferrite 10 Composition (at % C) 1147°C a + Fe3C 2 3 4 (Fe) Composition (wt% C) 15 20 20 L 25 2500 4.30 2000 y+ FeC 727°C 1500 Cementite (Fe C). 1000 10 6.70 Temperature (°F) For a 99.50 wt % Fe alloy at a temperature just below the eutectoid, find the following a) The fraction of total ferrite and cementite phases (5) b) The fractions of the proeutectoid ferrite and pearlite (5) c) The fraction of the eutectoid ferrite (5) e) Draw the evolution of the microstructure at this same composition for 1000, 900, 800, 700 C (5) f) Explain what it means to be a hypoeutectoid Alloy (5)
Temperature (°C) 1600 1538°C -1493°C 1400 1394°C Y+Z 1200 y, Austenite 2.14 1000 912°C 800 + 600 400 0.76 0.022 a, Ferrite 10 Composition (at % C) 1147°C a + Fe3C 2 3 4 (Fe) Composition (wt% C) 15 20 20 L 25 2500 4.30 2000 y+ FeC 727°C 1500 Cementite (Fe C). 1000 10 6.70 Temperature (°F) For a 99.50 wt % Fe alloy at a temperature just below the eutectoid, find the following a) The fraction of total ferrite and cementite phases (5) b) The fractions of the proeutectoid ferrite and pearlite (5) c) The fraction of the eutectoid ferrite (5) e) Draw the evolution of the microstructure at this same composition for 1000, 900, 800, 700 C (5) f) Explain what it means to be a hypoeutectoid Alloy (5)
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
Related questions
Question
Transcribed Image Text:Temperature (°C)
1600
1538°C
-1493°C
1400
1394°C
Y+Z
1200
y, Austenite
2.14
1000
912°C
800
+
600
400
0.76
0.022
a, Ferrite
10
Composition (at % C)
1147°C
a + Fe3C
2
3
4
(Fe)
Composition (wt% C)
15
20
20
L
25
2500
4.30
2000
y+ FeC
727°C
1500
Cementite (Fe C).
1000
10
6.70
Temperature (°F)
For a 99.50 wt % Fe alloy at a temperature just below the eutectoid, find the following
a) The fraction of total ferrite and cementite phases (5)
b) The fractions of the proeutectoid ferrite and pearlite (5)
c) The fraction of the eutectoid ferrite (5)
e) Draw the evolution of the microstructure at this same composition for 1000, 900, 800, 700
C (5)
f) Explain what it means to be a hypoeutectoid Alloy (5)
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