Abstract:
The diffusion of Co60 in the body centered cubic beta phase
of a ZrSOTi SO alloy has been studied at 900°, 1200°, and 1440°C. The
results confirm earlier unpublished data obtained by Kidson17 • The
temperature dependence of the diffusion coefficient is unusual and
suggests that at least two and possibly three mechanisms may be
operative
Annealing of the specimen in the high B.C.C. region prior to
the deposition of the tracer results in a large reduction in the
diffusion coefficient. The possible significance of this effect is
discussed in terms of rapid transport along dislocation network.