Before transforming to pearlite, this material phases through the two-phase zone (yellow) between austenite and ferrite. In cooling through this zone, ferrite is precipitated on the austenite grain ...

For the hypereutectoid composition shown by the vertical green bar the material enters the two phase austenite + cementite zone prior to cooling ... When the alloy reaches the eutectoid temperature ...

For example, the same principles apply to the formation of cementite from austenite, but it is not difficult to distinguish ferrite from cementite morphologically. As a result of a survey of the ...