Nuclear micro-analysis and cathodic hydrogenation were used to study D diffusion in the stainless steel. The D content was equal to about 20at%. The diffusivity at 298K was equal to 1.4 x 10-16m2/s.

M.B.Lewis, K.Farrell: Applied Physics Letters, 1980, 36[10], 819-21

 

Table 65

Permeation of H in Fe-Cr-Ni Alloys

 

Alloy

T(K)

P(Pa)

Po(μmol/m s kPa½)

E(kJ/mol)

AISI 321

497-933

0.6-12000

2.698

59.405

AISI 316

416-1018

0.0014-14000

7.451

63.496