The diffusion of 185W in the face-centered cubic phases of this alloy system was studied by using radioactive tracer and electron microprobe techniques at between 985 and 1305C. The results (table 144), together with thermodynamic mixing data, permitted the verification of Darken’s theory of interdiffusion.

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

Table 145

Bulk Diffusivity of As in 3335 Steel