The Ti- Al- C system (titanium - aluminum - carbon)

Abstract

The assessed phase diagram of Ti-C system shown in Fig. 1 is taken from [1998Oka]. Other recent work was done on this system by [1995Alb], [1996Sei], and [1996Jon]. The system consists of two terminal solids aTi and b Ti and a refractory monocarbide TiC. Other phases present are liquid and graphite (C). Two eutectic and one peritectoid reaction appear in this system at 1646, 2776, and 920 °C, respectively. There seems to be a tendency of carbon ordering at compositions below stoichiometry; as a result, the Ti2C phase does not appear in the binary phase diagram. Crystal structure data shown in Table 1 are taken from [Massalski2].