Question

QUESTION 20 For this set questions, if a question does not apply, enter N/A. Provide your answers as whole numbers (no decimal places). A block of 1020 steel is cooled slowly to 400 ?. If ferrite is present, • what is it's composition, in wt% C? • what percentage of the steel block is ferrite? If austenite is present, • what is it's composition, in wt% C? • what percentage of the steel block is austenite? If cementite is present, • what is it's composition, in wt% C? • what percentage of the steel block is cementite? What percentage of the steel block is pearlite? °C 1600 °F 2800 ? Liquid 1400 ?+? 2400 y+ liquid Liquid 1200 1148° (2098°) Fe3C ? 2.11 4.3 2000 1000 912° (1674°) 800 y+ Fe3C 727° (1341°) 1600 Temperature ? 0.77 600 0.02 ?+Fe3C 1200 800 400 0 1 2 3 4 5 6 7 Weight percent carbon

          QUESTION 20
For this set questions, if a question does not apply, enter N/A.
Provide your answers as whole numbers (no decimal places).
A block of 1020 steel is cooled slowly to 400 ?.
If ferrite is present,
• what is it's composition, in wt% C?
• what percentage of the steel block is ferrite?
If austenite is present,
• what is it's composition, in wt% C?
• what percentage of the steel block is austenite?
If cementite is present,
• what is it's composition, in wt% C?
• what percentage of the steel block is cementite?
What percentage of the steel block is pearlite?
°C
1600
°F
2800
?
Liquid
1400
?+?
2400
y+ liquid
Liquid
1200
1148° (2098°)
Fe3C
?
2.11
4.3
2000
1000
912° (1674°)
800
y+ Fe3C
727° (1341°)
1600
Temperature
?
0.77
600
0.02
?+Fe3C
1200
800
400
0
1
2
3
4
5
6
7
Weight percent carbon

QUESTION 20
For this set questions, if a question does not apply, enter N/A.
Provide your answers as whole numbers (no decimal places).
A block of 1020 steel is cooled slowly to 400 ?.
If ferrite is present,
• what is it's composition, in wt% C?
• what percentage of the steel block is ferrite?
If austenite is present,
• what is it's composition, in wt% C?
• what percentage of the steel block is austenite?
If cementite is present,
• what is it's composition, in wt% C?
• what percentage of the steel block is cementite?
What percentage of the steel block is pearlite?
°C
1600
°F
2800
?
Liquid
1400
?+?
2400
y+ liquid
Liquid
1200
1148° (2098°)
Fe3C
?
2.11
4.3
2000
1000
912° (1674°)
800
y+ Fe3C
727° (1341°)
1600
Temperature
?
0.77
600
0.02
?+Fe3C
1200
800
400
0
1
2
3
4
5
6
7
Weight percent carbon

Added by Timothy M.

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