The diffusion of 59Fe in the face-centered cubic phases of this alloy system was studied by using radioactive tracer and electron microprobe techniques at 985 to 1305C. The results could be described by:

14.9at%Ni:     D (cm2/s) = 2.13 x 100 exp[-286.3(kJ/mol)/RT]

29.7at%Ni:     D (cm2/s) = 9.98 x 100 exp[-305.7(kJ/mol)/RT]

45.3at%Ni:     D (cm2/s) = 8.75 x 100 exp[-301.8(kJ/mol)/RT]

B.Million, J.Ruzickova, J.Velisek, J.Vrestal: Materials Science and Engineering, 1981, 50[1], 43-52