In the Ti–Ti2Co system, liquid of 27 wt.% Co, of 17 wt.% Co and Ti2Co of 38 wt.% Co are in equilibrium at 1020°C. At 685°C, of 8 wt.% Co, 􀀀 of 1 wt.% Co and Ti2Co are in equilibrium. Pure Ti melts at 1670°C and also undergoes a crystal structure change from (BCC) to 􀀀 (HCP) on cooling through 882°C. Ti2Co is stable up to 1058°C.