The permeability at temperatures ranging from 400 to 750C could be described by:

P (cm mm/min torr½) = 0.566 exp[-16.12(kcal/mol)/RT]

It was noted that oxidation reduced the permeability by factors of up to 400, and altered the functional dependence of permeation upon T pressure.

The permeability at temperatures ranging from 400 to 750C could be described by:

P (cm mm/min torr½) = 0.566 exp[-16.12(kcal/mol)/RT]

It was noted that oxidation reduced the permeability by factors of up to 400, and altered the functional dependence of permeation upon T pressure.


Fe-Ni Diffusion in Ferrous Alloys Ni

 

 

J.T.Bell, J.D.Redman, H.F.Bittner: Metallurgical Transactions A, 1980, 11[5], 775-82

 

Table 169

Bulk Diffusion of Cu in Incoloy 800

 

Temperature (K)

D (m2/s)

1050

1.73 x 10-18

1100

9.22 x 10-18

1150

4.77 x 10-17

1200

1.09 x 10-16

1250

2.54 x 10-16

1300

6.53 x 10-16

1360

2.28 x 10-15

1430

5.86 x 10-15

1500

2.33 x 10-14