Use the following Fe-Fe3C phase diagram to answer questions 6-10 Steel containin

Question

Use the following Fe-Fe3C phase diagram to answer questions 6-10 Steel containing 0.5% C is classified as Hypoeutectic Hypereutectic Hypoeutectoid Hypereutecoid Maximum solubility of Carbon in alpha-ferrite is .0.77%C 2.11%C 0.0218% C 2.11%C What phases) are present at 728 degree C for AISI steel 1040 (0.40%C) alpha-ferrite y-austenite both alpha-ferrite and y-austenite None of the above Amount of a-ferrite in question is 50.5% 49.5% 0.0218% 0.77% Eutectoid reaction in this phase diagram takes place at 4.3% C 2.11%C 0.77%C None of the above

Explanation / Answer

16.a

17.c

18.a

19.c

20.a

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