Using the CCT diagram for the 1044 alloys provided in Appendix 3, determine the following:for a the normalized sample.for the water quenched sample.a) The microstructureb) The microstructure 13°C900800700600500400300200100S CONTINUOUS COOLING TRANSFORMATION DIAGRAM'44' CANALYSIS Wt% (See note on page 8)Mn PS Cr0.81 0.035 0.037 0.14Ac,Ac₁M₂mm 0,1BAR 15DIAMETERCSi0.44 0.2810M0.210++I20A505Mo0.0450AUSTENITISED AT 850 CPREVIOUS TREATMENT ROLLED1000COOLING RATE AT 700 CNi Al0.15500 200 10010-10020Nb5050100 150 200V Cu0.122010C PER MIN100 2001300150 200 300500500Sn0.0165START]FINISH500 1000mm OIL-mm WATER10%50%90%2000 mmLAIRFigure A3-2: CCT diagram for AISI 1044 with applicable 20 mm bar diameter annotation for water (blackdashed line) and air (red dashed line). F = ferrite, P = pearlite, B = bainite and M = martensite.

given; (a) microstructure for the normalized sample? (b) the microstructure for the water quenched…

Answered: Using the CCT diagram for the 1044…

Using the CCT diagram for the 1044 alloys provided in Appendix 3, determine the following: for a the normalized sample. for the water quenched sample. a) The microstructure b) The microstructure

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

Using the CCT diagram for the 1044 alloys provided in Appendix 3, determine the following:
for a the normalized sample.
for the water quenched sample.
a) The microstructure
b) The microstructure

13
°C
900
800
700
600
500
400
300
200
100
S CONTINUOUS COOLING TRANSFORMATION DIAGRAM
'44' C
ANALYSIS Wt% (See note on page 8)
Mn PS Cr
0.81 0.035 0.037 0.14
Ac,
Ac₁
M₂
mm 0,1
BAR 15
DIAMETER
C
Si
0.44 0.28
10
M
0.2
10
+
+
I
20
A
50
5
Mo
0.04
50
AUSTENITISED AT 850 C
PREVIOUS TREATMENT ROLLED
1000
COOLING RATE AT 700 C
Ni Al
0.15
500 200 100
10
-
100
20
Nb
50
50
100 150 200
V Cu
0.12
20
10
C PER MIN
100 200
1
300
150 200 300
500
500
Sn
0.016
5
START]
FINISH
500 1000
mm OIL
-mm WATER
10%
50%
90%
2000 mm
LAIR
Figure A3-2: CCT diagram for AISI 1044 with applicable 20 mm bar diameter annotation for water (black
dashed line) and air (red dashed line). F = ferrite, P = pearlite, B = bainite and M = martensite.

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