A permeation technique was used to determine diffusion and permeation data for H in Fe and Fe-1.5wt%Ni (table 41).

N.I.Shvetsov, V.P.Levchenko, R.A.Ryabov: Metalloved. Term. Obrab. Met., 1975, 3, 50-1

 

 

 

Table 41

Parameters for Diffusion and Permeation of H in Fe and Fe-1.5%Ni

 

Material

T (C)

Do (cm2/s)

E (kcal/mol)

Po (cm mm/s atm½)

E (kcal/mol)

a-Fe

370-750

8.31 x 10-4

2.62

-

-

a-Fe

370-750

-

-

1.91 x 10-2

7.80

Fe-1.5Ni

370-910

7.31 x 10-4

2.44

-

-

Fe-1.5Ni

370-910

-

-

2.30 x 10-2

8.25