800AEutectoid temperatureH 1400700AH 12006001000500B800400A300600M(start)200M + A50%400M(50%)M(90%)10020010-1110102103104105Time (s)Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the final microstructure andapproximate amount of each. Assume a small specimen has been held long enough to have achieved a complete and homogeneousaustenitic structure prior to treatment.Sample (1): Quickly cool specimen from 800°C to 575°C, hold for 10 s, then quench to room temperature.Sample (2): Quickly cool specimen from 800°C to 500°C, hold for 100 s, then quench to room temperature.O after treatment, sample 1 is 50% pearlite, 50% austeniteO after treatment, sample 2 is bauxiteO after treatment, sample 1 is 25% pearliteO after treatment, sample 2 is bainiteO after treatment, sample 2 is austeniteO None of the answers is correct.O after treatment, sample 2 is coarse pearliteO after treatment, sample 1 is tempered martensiteO after treatment, sample 1 is pearliteO after treatment, sample 2 is spheroditeO after treatment, sample 1 is martensiteO after treatment, sample 1 is bainiteO after treatment, sample 2 is tempered martensiteO after treatment, sample 2 is kryptoniteTemperature (°C)Temperature (°F)

Answered: Image /qna-images/answer/7c9d31a2-7445-4459-a5ed-ee0c30131535.jpg

Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the final microstructure and approximate amount of each. Assume a small specimen has been held long enough to have achieved a complete and homogeneous austenitic structure prior to treatment. Sample (1): Quickly cool specimen from 800°C to 575°C, hold for 10 s, then quench to room temperature. Sample (2): Quickly cool specimen from 800°C to 500°C, hold for 100 s, then quench to room temperature.

Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the final microstructure and approximate amount of each. Assume a small specimen has been held long enough to have achieved a complete and homogeneous austenitic structure prior to treatment. Sample (1): Quickly cool specimen from 800°C to 575°C, hold for 10 s, then quench to room temperature. Sample (2): Quickly cool specimen from 800°C to 500°C, hold for 100 s, then quench to room temperature.

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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