The diffusion of 63Ni 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) = 1.88 x 100 exp[-289.4(kJ/mol)/RT]

29.7at%Ni:     D (cm2/s) = 2.36 x 100 exp[-291.9(kJ/mol)/RT]

45.3at%Ni:     D (cm2/s) = 8.04 x 100 exp[-303.4(kJ/mol)/RT]

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