The diffusion of Ni was studied at 980 to 1130C. The results could be described by:

D (cm2/s) = 1.85 x 10-3 exp[-7.5(kcal/mol)/RT]

S.Otsuka, I.Katayama, Z.Kozuka: Nippon Kinzoku Gakkaishi, 1971, 35, 584-9