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Plasma-Material Interaction Data Set 119
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: CLAM
- Method: Theory
- Data scaled for isotope mass? No
- P0 = 3.11e-08 mol m-1 s-1 Pa-1/2
- Ep = 0.4 eV
- T = 573 – 823 K
Download JSON
- B93: H. Yang, W. Wang, M. Jiang, X. Ji, M. Zheng, "Hydrogen diffusive transport parameters through CLAM steel
", Journal of Nuclear Materials 511, 231-234 (2018). [10.1016/j.jnucmat.2018.09.014]
Comment
Pressure exponent 0.54-0.55. No trapping observed Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.