The diffusion of Fe was studied by using electron microprobe techniques at 1140 to 1360C. The results could be described by:

D (cm2/s) = 2.8 x 10-1 exp[-60.5(kcal/mol)/RT]

M.Badia, A.Vignes: Comptes Rendus de l’Academie des Sciences, 1967, 264, 1528-31