By using the Gruzin radioactive tracer technique, the tracer diffusion coefficients of 113Sn in Fe-18.5Cr-9.5%Ni (0.027%C, 0.6%Si) were studied at 800 to 1200C. The results could be described by:

bulk:     D (cm2/s) = 1.0 x 10-4 exp[-47.5(kcal/g-atom)/RT]

grain-boundary:     D (cm3/s) = 3.5 x 10-8 exp[-32.5(kcal/g-atom)/RT]

D.Marchive, D.Duc, D.Treheux, P.Guiraldenq: Comptes Rendus Hebdomaires des Seances de l’Academie des Sciences, Serie C, 1975, 280[1], 25-8