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Plasma-Material Interaction Data Set 93
Permeation of H in Steel
$$
P = P_0 \exp\left(-\frac{E_\mathrm{p}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: Steel
- Alloy: SS303
- Method: Experiment
- Data scaled for isotope mass? No
- P0 = 2.92e-07 mol m-1 s-1 Pa-1/2
- Ep = 0.7 eV
- T = 773 – 1173 K
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- B71: J. Gorman, W. Nardella, "Hydrogen permeation through metals
", Vacuum 12, 19-24 (1962). [10.1016/0042-207x(62)90821-7]
Comment
Permeation from metallic cylinder. Mol refers to mol (H2). Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.