The diffusion of Cr in single crystals was investigated, by using secondary ion mass spectrometry, at 2195 to 2461K. The results could be described by:

D (cm2/s) = 4.0 x 100 exp[-137(kcal/mol)/RT]

S.M.Klotsman, G.N.Tatarinova, A.N.Timofeev: Materials Science Forum, 1987, 15-18, 457-62

 

 

Table 90

Diffusivity of Fe in Ti60Ni40

Temperature (K)

D (m2/s)

602

8.3 x 10-23

611

1.4 x 10-22

619

2.5 x 10-22

632

6.4 x 10-22

653

2.6 x 10-21

665

5.6 x 10-21

676

1.1 x 10-20

688

2.0 x 10-20