By using electron microprobe analysis, the diffusion of Ni in a high-purity 2wt%Ni alloy was studied. It was found that, at 1473 to 1494C, the data could be described by:

D (cm2/s) = 9.7 x 100 exp[-62.7(kcal/mol)/RT]

D.B.Moharil, I.Jin, G.R.Purdy: Metallurgical Transactions, 1974, 5[1], 59-63