The diffusion of Ni was studied at 1000 to 1150C. The results could be described by:

D (cm2/s) = 2.2 x 10-3 exp[-7.9(kcal/mol)/RT]

C.R.Velho, N.M.El-Tayeb, J.Gani, N.A.D.Parlee: Transactions of the Metallurgical Society of AIME, 1969, 245, 184