The diffusion coefficients were measured at 489 to 774K. The 16O was injected by ion implantation. The diffusion penetration profiles were then measured by exploiting the 16O(d,p)17*O nuclear reaction. The temperature dependence of the O diffusivity in V-5at%Fe was described by:

D(m2/s) = 3.0 x 10-6 exp[-128.9(kJ/mol)/RT]

It was found that the addition of Fe decreased the diffusivity by 20 to 70%.

H.Nakajima, S.Nagata, H.Matsui, S.Yamaguchi: Philosophical Magazine A, 1993, 67[3], 557-71