Examples from the Web for cementite
The change from graphite into cementite is supposed to take place as we pass from left to right.
Lastly, there is a definite compound of iron and carbon, iron carbide or cementite, having the formula Fe3C.The Phase Rule and Its Applications|Alexander Findlay
Ferrite and cementite, already described in 10, are the final products of the transformation of austenite in slow-cooling.
Here the mass consists of primary austenite, eutectic austenite and cementite interstratified and pro-eutectoid cementite.
The white-hot, solid, but soft mass is now a conglomerate of “primary” austenite, “eutectic” austenite and “eutectic” cementite.