T_A > T_e >T_S > T_B > T_f > T_C >T_d

Fig. 125. Ternary two-phase equilibrium with a saddle point.

Fig. 126. Projection of the liquidus isotherms of Fig. 125. on the concentration triangle ABC.

Fig. 127. (a) Isothermal section through Fig. 125 at the saddle point temperature, T_S; (b) location of vertical sections I-II, A-III and IV-V.