The vacancy and antisite defect properties of the -phase were studied. By using the quasi-chemical method, in the restricted near-neighbor approximation, various relationships were deduced for the point defect concentrations:

CV = exp[-1.3(eV)/kT]

CV(Ti) = exp[-0.6(eV)/kT]

CV(Al) = exp[-0.73(eV)/kT]

CTi/Al = exp[-0.378(eV)/kT]

CAl/Ti = exp[-0.59(eV)/kT]

S.Raju, E.Mohandas, V.S.Raghunathan: Scripta Materialia, 1996, 34[4], 585-93