It was found that data for 60Co diffusion could be described by:

bcc (800-899C):     D (cm2/s) = 1.83 x 100 exp[-55.9(kcal/mol)/RT]

fcc (950-1310C):     D (cm2/s) = 7.77 x 10-1 exp[-63.3(kcal/mol)/RT]

K.Hirano, M.Cohen: Transactions of the Japan Institute of Metals, 1972, 13, 96-102