The diffusion of implanted solutes in the α-phase was studied at 948 to 1073K by using nuclear reaction analysis. The measurements showed that the diffusion coefficients yielded a linear Arrhenius plot:

D (cm2/s) = 1.4 x 102 exp[-77.6(kcal/mol)/RT]

The parameters were typical of normal substitutional behavior.

L.L.Araujo, M.Behar: Applied Physics A, 2000, 71[2], 169-74

The best linear fits to the solute diffusion data ([1204] to [1206], [1226] to [1227], [1234] to [1237]) yield:

Al: Ln[Do] = 0.46E – 31.1 (R2 = 0.998); O: Ln[Do] = 0.28E – 11.8 (R2 = 0.77);

Ti: Ln[Do] = 0.25E – 17.1 (R2 = 0.85)