“…Firstly, in the experimental investigations, only limited concentration and temperature ranges of phase equilibria were considered. For example, in the works devoted to investigations of silicide precipitation in titanium alloys, the studied concentration ranges were limited to a few atomic percent [17,18,23,28,31,33,34,[36][37][38][39][40][41][42][43][44][45][46][47][48]. In the works, devoted to determining phase equilibria and construction of phase diagrams [28,39,[48][49][50][51][52][53], the temperature ranges were limited by temperatures sufficiently high (above 600 K) for complete equilibration.…”