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Plasma-Material Interaction Data Set 97
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: SS316L
- Method: Experiment
- Data scaled for isotope mass? No
- P0 = 1.12e-07 mol m-1 s-1 Pa-1/2
- Ep = 0.65 eV
- T = 523 – 873 K
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- B73: K. Forcey, D. Ross, J. Simpson, D. Evans, "Hydrogen transport and solubility in 316L and 1.4914 steels for fusion reactor applications
", Journal of Nuclear Materials 160, 117-124 (1988). [10.1016/0022-3115(88)90038-4]
Comment
Heat treated 316L SS. Pressure dependence of permeability: ~P^0.5 for 316L. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.