The self-diffusion of Fe was investigated by using the radiotracer technique and the isotope, 59Fe. The data (table 36, figure 9) could be described by:

 

59Fe in Fe67Al33 (A2/B2):     D (m2/s) = 1.1 x 10-3 exp[-2.50(eV)/kT]

M.Eggersmann, H.Mehrer: Philosophical Magazine A, 2000, 80[5], 1219-44

 

Table 34

Diffusivity of 114mIn in FeAl (B2 Structure)

 

Temperature (T)

Method

D (m2/s)

1374

dripping

1.10 x 10-12

1274

dripping

1.47 x 10-13

1174

dripping

1.99 x 10-14

1067

dripping

1.34 x 10-15

977

implantation

1.08 x 10-16

876

implantation

2.79 x 10-18

 

Figure 8

Diffusivity of 65Zn in Fe52Al48