1. Given the time-temperature transformation diagram, what would be the phases present for a 1.13 wt. % C steel with no alloying elements. calculate the amount of pro eutectoid product, where applicable (at the bottom) A.) quenched in cold water to 380 C in 0.1 seconds, then held at 380 C for 30 seconds, then quenched to room temperatureB.) cooled in air at 2 C/minute to 600oC, then quenched to room temperatureC. quenched in cold water to 550 C in 0.1 seconds, then held at 550 C for 2 seconds, then quenched to room temperatureD. Necessary Steel Phase Diagram Calculations to determine the amount of pro eutectoid product: FuLRE 10.28Isothermal9001600transformation diagramfor a 1.13 wt% Ciron-carbon alloy: A,austenite; B, bainite; C,proeutectoid cementite;M, martensite; P,pearlite. [Adapted fromH. Boyer (Editor),Atlas of IsothermalTransformation andCooling TransformationDiagrams, AmericanSociety for Metals,1977, p. 33.]800A +C14007001200A+P6001000A +B500800B40060050 %300E400M(start)200M(50%)200100_M19Q%L.102103104105106110Time (s)1600Fiquidliquid14001227+ liquid1200I148*2.144.31000y + carbide27 (1340°F)8000.770.02600« + carbideFe,C400100% FeYeight percent carbonTemperature, °CTemperature (*C)Temperature (°F)

by considering the given conditions, data and parameters from the question, (1) MARTENSITE

Answered: FuLRE 10.28 Isothermal 900 1600…

Elements Of Electromagnetics

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ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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1. Given the time-temperature transformation diagram, what would be the phases present for a 1.13 wt. % C steel with no alloying elements. calculate the amount of pro eutectoid product, where applicable (at the bottom)

A.) quenched in cold water to 380 C in 0.1 seconds, then held at 380 C for 30 seconds, then quenched to room temperature

B.) cooled in air at 2 C/minute to 600oC, then quenched to room temperature

C. quenched in cold water to 550 C in 0.1 seconds, then held at 550 C for 2 seconds, then quenched to room temperature

D. Necessary Steel Phase Diagram Calculations to determine the amount of pro eutectoid product:

FuLRE 10.28
Isothermal
900
1600
transformation diagram
for a 1.13 wt% C
iron-carbon alloy: A,
austenite; B, bainite; C,
proeutectoid cementite;
M, martensite; P,
pearlite. [Adapted from
H. Boyer (Editor),
Atlas of Isothermal
Transformation and
Cooling Transformation
Diagrams, American
Society for Metals,
1977, p. 33.]
800
A +C
1400
700
1200
A+P
600
1000
A +B
500
800
B
400
600
50 %
300E
400
M(start)
200
M(50%)
200
100
_M19Q%L.
102
103
104
105
106
1
10
Time (s)
1600
Fiquid
liquid
1400
1227
+ liquid
1200
I148*
2.14
4.3
1000
y + carbide
27 (1340°F)
800
0.77
0.02
600
« + carbide
Fe,C
400
100% Fe
Yeight percent carbon
Temperature, °C
Temperature (*C)
Temperature (°F)

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