When the alloy reaches the eutectoid temperature the untransformed austenite undergoes a transformation to pearlite and the already formed cementite remains unchanged. The microstructure is now a ...

In cooling through this zone, ferrite is precipitated on the austenite grain boundaries. As the temperature is reduced ... The ductility of the ferrite makes this alloy more ductile than the eutectoid ...

The three primary phases of steel microstructure are ferrite, cementite, and austenite ... and refine grain structure by ...