Rapidly cool to 625°C (1155°F), hold at this temperature for 10 s, rapidly cool to 400°C (750°F), hold at this temperature for 5 s,then quench to room temperature.martensite%proeutectoid ferritebainitefine pearliteausteniteieTextbook and Media Time = 1 · 10E-1 sTemperature = 0 °CTemperature = 32 °F%3D9001600800A + F1400A7001200`A + PP600В1000500FA+B80050%400M (start)M (50%)600300м(90%)20040010020001110102103104105Temperature (°C)Temperature (°F)

At 625°C for 10 seconds, after cooling and holding, all the specimen is transformed into fine…

Answered: Rapidly cool to 625°C (1155°F), hold at…

Rapidly cool to 625°C (1155°F), hold at this temperature for 10 s, rapidly cool to 400°C (750°F), hold at this temperature for 5 s, then quench to room temperature.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter16: Spontaneity Of Reaction

Section: Chapter Questions

Problem 48QAP

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Question

Rapidly cool to 625°C (1155°F), hold at this temperature for 10 s, rapidly cool to 400°C (750°F), hold at this temperature for 5 s,
then quench to room temperature.
martensite
%
proeutectoid ferrite
bainite
fine pearlite
austenite
i
eTextbook and Media

Time = 1 · 10E-1 s
Temperature = 0 °C
Temperature = 32 °F
%3D
900
1600
800
A + F
1400
A
700
1200
`A + P
P
600
В
1000
500
FA+B
800
50%
400
M (start)
M (50%)
600
300
м(90%)
200
400
100
200
01
1
10
102
103
104
105
Temperature (°C)
Temperature (°F)

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