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(b) Fig. Q2(b) shows the isothermal transformation diagram for hypo-eutectoid steel. Sketch and label on this diagram the time temperature paths to produce the microstructure that consisting of proeutectoid ferrite, pearlite and martensite. Assume that the steel has been heated above 800° C and held at this temperature long enough to achieve a homogeneous austenitic structure.

(b) Fig. Q2(b) shows the isothermal transformation diagram for hypo-eutectoid steel. Sketch and label on this diagram the time temperature paths to produce the microstructure that consisting of proeutectoid ferrite, pearlite and martensite. Assume that the steel has been heated above 800° C and held at this temperature long enough to achieve a homogeneous austenitic structure.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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(b) Fig. Q2(b) shows the isothermal transformation diagram for hypo-eutectoid steel. Sketch and label on this diagram the time temperature paths to produce the microstructure that consisting of proeutectoid ferrite, pearlite and martensite. Assume that the steel has been heated above 800° C and held at this temperature long enough to achieve a homogeneous austenitic structure. MATR 2381 Materials Science and Engine 900 1600 800 A+F 1400 700 1200 A+P 600 1000 C 500 A+B 800 50% 400 M(start) M(50%) 600 300 M(90%) 200 400 100 200 0.1 10 102 103 104 105 Time (s) Fig. Q2(b): TTT diagram for hypoeutectoid steel Temperature ("C) Temperature ("
Transcribed Image Text:(b) Fig. Q2(b) shows the isothermal transformation diagram for hypo-eutectoid steel. Sketch and label on this diagram the time temperature paths to produce the microstructure that consisting of proeutectoid ferrite, pearlite and martensite. Assume that the steel has been heated above 800° C and held at this temperature long enough to achieve a homogeneous austenitic structure. MATR 2381 Materials Science and Engine 900 1600 800 A+F 1400 700 1200 A+P 600 1000 C 500 A+B 800 50% 400 M(start) M(50%) 600 300 M(90%) 200 400 100 200 0.1 10 102 103 104 105 Time (s) Fig. Q2(b): TTT diagram for hypoeutectoid steel Temperature ("C) Temperature ("
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