Residual activity methods were used to study the diffusion of 51Cr at 1023 to 1215K. The results could be described by:

D (m2/s) = 3.26 x 10-4 exp[-210(kJ/mol)/RT]

F.Makuta, Y.Iijima, K.Hirano: Transactions of the Japan Institute of Metals, 1979, 20[10], 551-9