The diffusion of implanted solutes in the α-phase were studied at 948 to 1073K (Al) and 823 to 1073K (Ag) by using nuclear reaction analysis and Rutherford back-scattering techniques, respectively. The measurements showed that, for both solutes, the diffusion coefficients yielded a linear Arrhenius plot. The results could be described by:

Al:     D (m2/s) = 1.4 x 10-2 exp[-326(kJ/mol)/RT]

Ag:     D (m2/s) = 1.0 x 10-4 exp[-279(kJ/mol)/RT]

The parameters were typical of normal substitutional behavior.

Al and Ag Diffusion Study in α-Titanium. L.L.Araujo, M.Behar: Applied Physics A, 2000, 71[2], 169-74