The technique of successive partial equilibria to predict precipitation of carbides in equilibrium with a solution phase.

The technique of successive partial equilibria has been employed to predict the equilibrium precipitation of carbides in iron-based alloy systems. To employ this technique, the principle that the equilibrium state is independent of the path followed, is utilized. The technique is illustrated with respect to the Fe-Cr-C system and also with respect to a steel containing several alloying elements. The technique is applicable to the precipitation of nitrides, oxides etc. also, in addition to that of carbides.