Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Question
Chapter 5, Problem 4ETSQ
To determine
The incorrect statement about nucleate and growth transformation from liquid to solid.
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26) Given the T-T-T curve below, select the process that will result in a microstructure of nearly all
bainite.
a. Cool to 400°C, hold for 20 seconds, then quench to room temperature
b. Cool to 500°C, hold for 10 seconds, then quench to room temperature
c. Quench to 125°C, hold for 10 seconds, then reheat to 600°C for more than 100 seconds
d. Cool to 725°C, hold for 1,000 seconds, then quench to 125°C
e. Cool to 600°C, hold for 1 second, the quench to room temperature
Temperature (°C)
f.
none of the above
900
800 H
A+C
1600
1400
700-
1200
A+P
600
P
1000
500H
A+B
800
400-
Temperature (°F)
4
A
300-
M(start)
200
M(50%)
100- M(90%)
600
50%
T
0
1
10
102
103
10
105
106
Time (s)
400
200
27) Fatigue failure situations are typically dependent upon which combination of the following
factors?
a. Slip plane, slip direction, and orientation of the applied load
b. Yield strength, elastic modulus, and ductility of the material
c. Temperature, time, and applied stress
d. Stress amplitude, frequency of…
26) Given the T-T-T curve below, select the process that will result in a microstructure of nearly all
bainite.
C.
Cool to 400°C, hold for 20 seconds, then quench to room temperature
Cool to 500°C, hold for 10 seconds, then quench to room temperature
Quench to 125°C, hold for 10 seconds, then reheat to 600°C for more than 100 seconds
d. Cool to 725°C, hold for 1,000 seconds, then quench to 125°C
Cool to 600°C, hold for 1 second, the quench to room temperature
f. none of the above
900
Temperature (°C)
800
A+C
700
A+P
600
500
A+B
400
A
300
200
M(start)
M(50%)
100
M(90%)
TT
1600
1400
1200
1000
800
600
50%
0
1
10
102
103 104
105
106
Time(s)
400
200
Temperature (°F)
27) Fatigue failure situations are typically dependent upon which combination of the following
factors?
Slip plane, slip direction, and orientation of the applied load
b. Yield strength, elastic modulus, and ductility of the material
c. Temperature, time, and applied stress
d. Stress amplitude, frequency of loading, and number…
2. In a copper-nickel system as shown in figure, an alloy composition of 35 wt% Ni was
cooled down from the temperature of 1300°C. Sketch the expected microstructures at
the point a, b, c, d and e and briefly describe the development of these microstructures
in the equilibrium cooling.
L.
L
(35 Ni)
1300
L (32 Ni)
a (46 Ni)
a(43 Ni)
L (24 Ni)
d
1200
1100
20
30
40
50
Composition (wt% Ni)
Temperature (°C))
Chapter 5 Solutions
Materials Science And Engineering Properties
Ch. 5 - Prob. 1CQCh. 5 - Prob. 2CQCh. 5 - Prob. 3CQCh. 5 - Prob. 4CQCh. 5 - Prob. 5CQCh. 5 - Prob. 6CQCh. 5 - Prob. 7CQCh. 5 - Prob. 8CQCh. 5 - Prob. 9CQCh. 5 - Prob. 10CQ
Ch. 5 - Prob. 11CQCh. 5 - Prob. 12CQCh. 5 - Prob. 13CQCh. 5 - Prob. 14CQCh. 5 - Prob. 15CQCh. 5 - Prob. 16CQCh. 5 - Prob. 17CQCh. 5 - Prob. 18CQCh. 5 - Prob. 19CQCh. 5 - Prob. 20CQCh. 5 - Prob. 21CQCh. 5 - Prob. 22CQCh. 5 - Prob. 23CQCh. 5 - Prob. 24CQCh. 5 - Prob. 25CQCh. 5 - Prob. 26CQCh. 5 - Prob. 27CQCh. 5 - Prob. 28CQCh. 5 - Prob. 29CQCh. 5 - Prob. 30CQCh. 5 - Prob. 31CQCh. 5 - Prob. 32CQCh. 5 - Prob. 33CQCh. 5 - Prob. 34CQCh. 5 - Prob. 35CQCh. 5 - Prob. 36CQCh. 5 - Prob. 1ETSQCh. 5 - Prob. 2ETSQCh. 5 - Prob. 3ETSQCh. 5 - Prob. 4ETSQCh. 5 - Prob. 5ETSQCh. 5 - Prob. 6ETSQCh. 5 - Prob. 7ETSQCh. 5 - Prob. 8ETSQCh. 5 - Prob. 9ETSQCh. 5 - Prob. 10ETSQCh. 5 - Prob. 11ETSQCh. 5 - Prob. 12ETSQCh. 5 - Prob. 1DRQCh. 5 - Prob. 2DRQCh. 5 - Prob. 3DRQCh. 5 - Prob. 5.1PCh. 5 - Prob. 5.2PCh. 5 - Prob. 5.3PCh. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - Prob. 5.7PCh. 5 - Prob. 5.8PCh. 5 - Prob. 5.9PCh. 5 - Prob. 5.10PCh. 5 - Prob. 5.11PCh. 5 - Prob. 5.12PCh. 5 - Prob. 5.13PCh. 5 - Prob. 5.14PCh. 5 - Prob. 5.15PCh. 5 - Prob. 5.16PCh. 5 - Prob. 5.17PCh. 5 - Prob. 5.18PCh. 5 - Prob. 5.19P
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