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Plasma-Material Interaction Data Set 187
Diffusivity of D in Steel
$$
D = D_0 \exp\left(-\frac{E_\mathrm{d}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: Steel
- Alloy: TT3mt
- Method: Experiment
- Data scaled for isotope mass? No
- D0 = 6.13e-08 m2 s-1
- Ed = 0.1 eV
- T = 623 – 873 K
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- B103: Z. Chen, X. Hu, M. Ye, B. D. Wirth, "Deuterium transport and retention properties of representative fusion blanket structural materials
", Journal of Nuclear Materials 549, 152904 (2021). [10.1016/j.jnucmat.2021.152904]
Comment
CNA: diffusion measurements down to 523 K. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.