Question 2: For the given Fe-C phase duagram (a) Compute the mass fractions of a ferrite and cementite in pearlite. (b) Compute the mass fraction of eutectoid ferrite in an iron-carbon alloy that contains 0.43 wt% C. (c) The mass fractions of total ferrite and total cementite in an iron-carbon alloy are 0.88 and 0.12, respectively. Is this a hypoeutectoid or hypereutectoid alloy? Why? Temperature (°C) 1600 1400 1200 1000 800 600 400 1538°C 0 (Fe) 912°C M+R -1493°C 1394°C 7. Austenite 0.76 0.022 a, Ferrite y+L 2 2.14 Composition (at% C) 15 10 1147°C a + FezC L 3 Composition (wt% C) 4.30 Y+Fe3C 727°C 20 Cementite (Fe3C). 25 2500 2000 1500 1000 6.70 Temperature (°F)

Question 2: For the given Fe-C phase duagram (a) Compute the mass fractions of a ferrite and cementite in pearlite. (b) Compute the mass fraction of eutectoid ferrite in an iron-carbon alloy that contains 0.43 wt% C. (c) The mass fractions of total ferrite and total cementite in an iron-carbon alloy are 0.88 and 0.12, respectively. Is this a hypoeutectoid or hypereutectoid alloy? Why? Temperature (°C) 1600 1400 1200 1000 800 600 400 1538°C 0 (Fe) 912°C M+R -1493°C 1394°C 7. Austenite 0.76 0.022 a, Ferrite y+L 2 2.14 Composition (at% C) 15 10 1147°C a + FezC L 3 Composition (wt% C) 4.30 Y+Fe3C 727°C 20 Cementite (Fe3C). 25 2500 2000 1500 1000 6.70 Temperature (°F)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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