So much to do with the interstitials voids (mostly carbon interstitials stuck inside the tetrahedral or octahedral voids in BCC or FCC structure) betw the Fe-atoms for properties variation.
How to 'produce' martensite and bainite?
For what i know, martensite formed by rapid cooling from austenite phase of steel, and slow cooling to form back to it's original state. But in order to form bainite, what's the cooling rate? intermediate between rapid and slow cooling? How rapid and...