Martensite can best be defined as which one of the following:
A) a mixture of ferrite and carbide phases obtained by rapid cooling of austenite
B) a mixture of ferrite and carbide phases obtained by slow cooling of austenite
C) a phase consisting of an iron-carbon solution whose composition is the same as the austenite from which it was derived
D) a solution of cementite in ferrite obtained by rapid cooling of austenite
Correct Answer:
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