10. Refer to the iron-carbide phase diagram shown below. After being slowly cooled from the austenite...
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10. Refer to the iron-carbide phase diagram shown below. After being slowly cooled from the austenite region, the plain carbon steel exhibits a microstructure consisting of 40% pearlite and 60% ferrite. 1600 1538°C 1493°C L 1400 25 1394°C 1200 1147°C 2.14 y, Austenite 20 1000 912°C y +Fe,C 800 - y+Fe,C 15 127°C 0.76 op22 600 a, Ferrite a+ FeyC P+Fe,C 10 a+ Fe,C 400 3 6.70 Fe Composition (wt% C) Fe;C a) Estimate the carbon concentration of the steel? b) Describe the equilibrium microstructure that would be obtained if the steel were heated to 730°C and held there for a long time. Temperature ("C) 10. Refer to the iron-carbide phase diagram shown below. After being slowly cooled from the austenite region, the plain carbon steel exhibits a microstructure consisting of 40% pearlite and 60% ferrite. 1600 1538°C 1493°C L 1400 25 1394°C 1200 1147°C 2.14 y, Austenite 20 1000 912°C y +Fe,C 800 - y+Fe,C 15 127°C 0.76 op22 600 a, Ferrite a+ FeyC P+Fe,C 10 a+ Fe,C 400 3 6.70 Fe Composition (wt% C) Fe;C a) Estimate the carbon concentration of the steel? b) Describe the equilibrium microstructure that would be obtained if the steel were heated to 730°C and held there for a long time. Temperature ("C)
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Materials Science and Engineering An Introduction
ISBN: 978-0470419977
8th edition
Authors: William D. Callister Jr., David G. Rethwisch
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