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Steel phases question!?

in a lab at school we did heat treatment of steelwhat are the possible phases present in the steel sample in as-received, as-quenched and as-tempered conditions? specifically when is it ferrite, austenite and pearliteis the steel originally in the ferrite phase? then when headed turns into austenite and when quenched martensite is formed and when tempered cermentite is formed...........where is pearlite involved and am i correct about the ferrite?

Answer:

hey from what i learned in uni last sem, steel is originally ferrite form at first at room conditions. it will undergo poly morphic transformation to become FCC structure austenite form at 912 degree celcius. under conditions, it can become pearlite (which is a combination of ferrite and cementite) or bainitie( a finer form of pearlite). queching conditions to room temperature will form martensite which is the strongest but brittle steel form. tempered cementite is formed when we quench it and then raise temperatures before sir cooling. hope it helps, pls vote me best answer is i deserve it. thanks

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