What is the type of proeutectoid phase and its mass fraction for an iron-carbon alloy in which the mass fraction of tota
Posted: Fri Jul 01, 2022 7:23 am
What is the type of proeutectoid phase and its mass fraction for an iron-carbon alloy in which the mass fraction of total cementite is 0.20 at a temperature just below 727°C?
Temperature (°C) 1200 1000 800 600 400 1600 1400 (Fe) 912°C a 1538°C Y -1493°C 1394°C Y. Austenite 0.76 0.022 a, Ferrite 1 5 Y+L 2 2.14 Composition (at% C) 15 10 1147°C a + Fe3C L 3 Composition (wt% C) 4.30 Y + Fe3C 727°C 20 Cementite (Fe3C) 5 6 25 2500 2000 1500 atur (°F) 1000 6.70
Temperature (°C) 1200 1000 800 600 400 1600 1400 (Fe) 912°C a 1538°C Y -1493°C 1394°C Y. Austenite 0.76 0.022 a, Ferrite 1 5 Y+L 2 2.14 Composition (at% C) 15 10 1147°C a + Fe3C L 3 Composition (wt% C) 4.30 Y + Fe3C 727°C 20 Cementite (Fe3C) 5 6 25 2500 2000 1500 atur (°F) 1000 6.70