The eutectoid reaction describes the phase transformation of one solid into two different solids. In the Fe-C system, there is a eutectoid point at approximately 0.8wt% C, 723°C. The phase just above the eutectoid temperature for plain carbon steels is known as austenite or gamma.
What is the eutectoid reaction at 727 degree centigrade?
3. What is Eutectoid reaction at 727°C? γ (0.8 % C) → α (0.025% C) + Fe3C (6.67% C).
What causes eutectoid reaction?
The eutectoid reaction of ferrite + carbide austenite occurs when austenite nucleates. ... When the temperature is increased to that at which austenitization occurs, the free energy change increases with increasing temperature, resulting in an increasing rate of austenite nucleation.
