The concentration profiles of 14C were determined by means of autoradiography. The Fe-based alloys exhibited an almost homogeneous behavior with regard to their C diffusion and could be described by:

Fe-15Cr-15Ni:     D (cm2/s) = 1.2 x 100 exp[-40(kcal/mol)/RT]

Fe-25Cr-15Ni:     D (cm2/s) = 1.0 x 101 exp[-45(kcal/mol)/RT]

Fe-35Cr-15Ni:     D (cm2/s) = 4.9 x 100 exp[-45.5(kcal/mol)/RT]

O.Demel: Radex Rundschau, 1977, 2, 201-9