1. Using the isothermal transformation diagram below, describe the microstructure present in a eutectoid carbon steel, after each of the following heat treatments. From 800 C: (a) Cool to 450 C and hold for 10 s, cool to 375 C hold for 100 s, quench to 25 C. (b) Cool to 650 C and hold for 300 s, and quench to 25 C. (c) Cool to 720 C and hold for 100 s, quench to 400 C and hold for 200s, and quench to 25 C.

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
icon
Related questions
Question
1. 1. Using the isothermal transformation diagram below, describe the microstructure
present in a eutectoid carbon steel, after each of the following heat treatments. From 800
C:
(a) Cool to 450 C and hold for 10 s, cool to 375 C hold for 100 s, quench to 25 C.
(b) Cool to 650 C and hold for 300 s, and quench to 25 C.
(c) Cool to 720 C and hold for 100 s, quench to 400 C and hold for 200 s, and quench to
25 C.
Temperature (°C)
800
700
600
500
400
300
200
100
0
10-1
A
A
A
M(start)
M(50%)
M(90%)
1
10
M+A
Eutectoid temperature
P
10²
Time (s)
B
50%
10³ 104
1400
1200
1000
800
600
400
200
105
Temperature (°F)
Transcribed Image Text:1. 1. Using the isothermal transformation diagram below, describe the microstructure present in a eutectoid carbon steel, after each of the following heat treatments. From 800 C: (a) Cool to 450 C and hold for 10 s, cool to 375 C hold for 100 s, quench to 25 C. (b) Cool to 650 C and hold for 300 s, and quench to 25 C. (c) Cool to 720 C and hold for 100 s, quench to 400 C and hold for 200 s, and quench to 25 C. Temperature (°C) 800 700 600 500 400 300 200 100 0 10-1 A A A M(start) M(50%) M(90%) 1 10 M+A Eutectoid temperature P 10² Time (s) B 50% 10³ 104 1400 1200 1000 800 600 400 200 105 Temperature (°F)
Expert Solution
steps

Step by step

Solved in 4 steps with 3 images

Blurred answer
Knowledge Booster
Ferrous Metals and Alloys
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY