(1 hr.) ,then cooling as the (TTT diagram) as below. find the final structure for each sample. 1- rapid cooling to room temperature. 2- rapid cooling to (690 C) and hold to( 2 hr.), then, rapid cooling to room temperature. 3- rapid cooling to (610 C) and hold to( 3 min.), then, rapid cooling to room temperature . 4- rapid cooling to (580 C) and hold to( 2 sec ), then, rapid cooling to room temperature . 5- rapid cooling to (450 C) and hold to( 1 hr.), then, rapid cooling to room temperature . 6- rapid cooling to (300 C) and hold to( 7 min.), then, rapid cooling to room temperature . rapid cooling to (300 C) and hold to( 5 hr.), then, rapid cooling to -Y room temperature. 800 Eutectoid temperature 1400
(1 hr.) ,then cooling as the (TTT diagram) as below. find the final structure for each sample. 1- rapid cooling to room temperature. 2- rapid cooling to (690 C) and hold to( 2 hr.), then, rapid cooling to room temperature. 3- rapid cooling to (610 C) and hold to( 3 min.), then, rapid cooling to room temperature . 4- rapid cooling to (580 C) and hold to( 2 sec ), then, rapid cooling to room temperature . 5- rapid cooling to (450 C) and hold to( 1 hr.), then, rapid cooling to room temperature . 6- rapid cooling to (300 C) and hold to( 7 min.), then, rapid cooling to room temperature . rapid cooling to (300 C) and hold to( 5 hr.), then, rapid cooling to -Y room temperature. 800 Eutectoid temperature 1400
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
Related questions
Question
![Samples of Eutectoid steel heated to austenite phase at (850 C) for
(1 hr.) ,then cooling as the (TTT diagram ) as below.
find the final structure for each sample.
1- rapid cooling to room temperature.
2- rapid cooling to (690 C) and hold to( 2 hr.), then, rapid cooling to
room temperature.
3- rapid cooling to (610 C) and hold to( 3 min.), then, rapid cooling to
room temperature.
4- rapid cooling to (580 C) and hold to( 2 sec ), then, rapid cooling to
room temperature.
5- rapid cooling to (450 C) and hold to( 1 hr.), then, rapid cooling to
room temperature.
6- rapid cooling to (300 C) and hold to( 7 min.), then, rapid cooling to
room temperature.
rapid cooling to (300 C) and hold to( 5 hr.), then, rapid cooling to -V
room temperature.
800
Eutectoid temperature
1400
700-
1200
600
1000
500
800
400-
A.
600
300
M(start)
200
50%
400
M+ A
M(50%)
M(90%)
100
200
10-1
1
10
102
103
104
105
Time (s)
Temperature (C)
Temperature ("F)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F63eaf7d5-11f2-40d7-b6ff-b850261ddc21%2F91e300d2-e398-499b-aafd-d6fa57d83963%2Fb00rtv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Samples of Eutectoid steel heated to austenite phase at (850 C) for
(1 hr.) ,then cooling as the (TTT diagram ) as below.
find the final structure for each sample.
1- rapid cooling to room temperature.
2- rapid cooling to (690 C) and hold to( 2 hr.), then, rapid cooling to
room temperature.
3- rapid cooling to (610 C) and hold to( 3 min.), then, rapid cooling to
room temperature.
4- rapid cooling to (580 C) and hold to( 2 sec ), then, rapid cooling to
room temperature.
5- rapid cooling to (450 C) and hold to( 1 hr.), then, rapid cooling to
room temperature.
6- rapid cooling to (300 C) and hold to( 7 min.), then, rapid cooling to
room temperature.
rapid cooling to (300 C) and hold to( 5 hr.), then, rapid cooling to -V
room temperature.
800
Eutectoid temperature
1400
700-
1200
600
1000
500
800
400-
A.
600
300
M(start)
200
50%
400
M+ A
M(50%)
M(90%)
100
200
10-1
1
10
102
103
104
105
Time (s)
Temperature (C)
Temperature ("F)
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