Changing the carbon content of the alloy changes the microstructure of the pearlite and hence the mechanical ... This is illustrated on the phase diagram and shown in the photomicrograph. The ...

The eutectoid phase transition in the iron carbon system takes place at 727 C. The three components in equilibrium at this temperature are Austenite, g, with the composition Fe - 0.77 wt % C, Ferrite, ...