A permeation technique was used to determine diffusion and permeation data for H in Fe at 370-750C (table 20).
N.I.Shvetsov, V.P.Levchenko, R.A.Ryabov: Metallovedeniye i Termicheskaya Obrabotka Metallov, 1975, 3, 50-1
Table 20
Parameters for Diffusion and Permeation of H in Fe
Do (cm2/s) | E (kcal/mol) | Po (cm mm/s atm½) | E (kcal/mol) |
8.31 x 10-4 | 2.62 | - | - |
- | - | 1.91 x 10-2 | 7.80 |