The diffusion of 44Ti was studied in β-phase material, at 1176 to 1893K, by using tracer and sectioning techniques. The results could be described by:

D (m2/s) = 3.5 x 10-4 exp[-3.4(eV)/kT]

U.Köhler, C.Herzig: Physica Status Solidi B, 1987, 144[1], 243-51

 

Table 286

Diffusivity of Ti in α-Ti Single Crystals

 

Temperature (K)

D (m2/s)

Orientation*

1133

1.48 x 10-17

1073

2.30 x 10-18

1023

5.10 x 10-19

1023

2.56 x 10-19

||

973

6.98 x 10-20

923

9.43 x 10-21

923

4.58 x 10-21

||

893

2.68 x 10-21

873

1.80 x 10-20

943

1.25 x 10-19

* wrt c-axis