Your friend in the lab has been working with a 90% Dc, 10% Vr alloy and developed the time-temperature transformation (TTT) diagram below, including the formation of a martensite (M) phase. You have 3 pieces of this alloy in your furnace currently held at 800 °C. State the steps that you would need to obtain this alloy with the following phase fractions at room temperature: i. 100 % eta (η) phase ii. 100 % beta (β) phase iii. 50% martensite (M), 50% beta (β) phase Which of the microstructures formed in part a would you expect to have the highest tensile strength? Would this microstructure also be expected to have the highest elongation? Explain
Your friend in the lab has been working with a 90% Dc, 10% Vr alloy and developed the time-temperature transformation (TTT) diagram below, including the formation of a martensite (M) phase. You have 3 pieces of this alloy in your furnace currently held at 800 °C. State the steps that you would need to obtain this alloy with the following phase fractions at room temperature: i. 100 % eta (η) phase ii. 100 % beta (β) phase iii. 50% martensite (M), 50% beta (β) phase Which of the microstructures formed in part a would you expect to have the highest tensile strength? Would this microstructure also be expected to have the highest elongation? Explain
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
a. Your friend in the lab has been working with a 90% Dc, 10% Vr alloy and developed the time-temperature transformation (TTT) diagram below, including the formation of a martensite (M) phase.
You have 3 pieces of this alloy in your furnace currently held at 800 °C. State the steps that you would need to obtain this alloy with the following phase fractions at room temperature:
i. 100 % eta (η) phase
ii. 100 % beta (β) phase
iii. 50% martensite (M), 50% beta (β) phase
Which of the microstructures formed in part a would you expect to have the highest tensile strength? Would this microstructure also be expected to have the highest elongation? Explain.
![800
n (stable)
730 °C
T(°C)
in
600
400
in
100%
M.
Mgo
200
102
104
106
100
time (s)
50%,
0%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6e9db50a-4d56-435a-a058-414853800bca%2F8aea725d-531a-4a88-97db-f9fd730ea924%2Fem4z7cq_processed.png&w=3840&q=75)
Transcribed Image Text:800
n (stable)
730 °C
T(°C)
in
600
400
in
100%
M.
Mgo
200
102
104
106
100
time (s)
50%,
0%
![1600-
1538
1475
L
1400-
1394
8 (Vr)
ɛ (Dc)
1230
1246
1200-
1155
1138
1100
1000-
Y (Vr,Dc)
n (Dc)
912
800-
727
690
600-
400-
B (Dc)
200-
250
B
a (Vr)
10
20
30
40
50
60
70
80
90
100
Vr
wt. %
Dc
Temperature, °C](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6e9db50a-4d56-435a-a058-414853800bca%2F8aea725d-531a-4a88-97db-f9fd730ea924%2F0ahmlo9_processed.png&w=3840&q=75)
Transcribed Image Text:1600-
1538
1475
L
1400-
1394
8 (Vr)
ɛ (Dc)
1230
1246
1200-
1155
1138
1100
1000-
Y (Vr,Dc)
n (Dc)
912
800-
727
690
600-
400-
B (Dc)
200-
250
B
a (Vr)
10
20
30
40
50
60
70
80
90
100
Vr
wt. %
Dc
Temperature, °C
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