Uber das Zustandsdiagramm der Eisenkohlenstofflegierungen,Stahl und Eisen, Vol.31 (1911), pp.465
(On the phase diagram of iron carbon alloys)
Notes:
High temperature experiments showed a maximum carbon solubility at 2220 C and a change in direction at 1837. The maximum coincides with the irocarbide composition of Fe2C, whilst the change in direction coincides with the composition Fe3C.
