Review of hydrogen isotopes transport parameters and considerations to corresponding experiments

•This contribution gives a comparison of the hydrogen permeation parameters of different RAFM steel.•For future structural calculation and safety issues the paper selects the measurement of “Optifer” as “best” result of RAFM steel.•Our contribution publishes a comparison of diffusion constants of ch...

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Bibliographic Details
Published in:Fusion engineering and design 2017-11, Vol.124, p.783-786
Main Authors: von der Weth, Axel, Arbeiter, Frederik, Klimenko, Dmitry, Pasler, Volker, Schlindwein, Georg
Format: Article
Language:English
Subjects:
Alloying elements
Austenitic stainless steels
Deuterium
Electric power generation
Electron tubes
Ferritic stainless steel
Ferritic stainless steels
Fusion
Hydrogen
Hydrogen isotopes
Isotopes
Martensitic stainless steel
Martensitic stainless steels
Materials selection
Nuclear power plants
Parameters
Permeation experiment
Power plants
Transport
Transport parameter
Tritium
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Summary:•This contribution gives a comparison of the hydrogen permeation parameters of different RAFM steel.•For future structural calculation and safety issues the paper selects the measurement of “Optifer” as “best” result of RAFM steel.•Our contribution publishes a comparison of diffusion constants of chemical elements regarding the kind of lattice and endothermic/exothermic character of elements. The hydrogen isotopes tritium and deuterium as fuel of future fusion power plants will be in contact with several plant components: Reduced Activation Ferritic Martensitic (RAFM) steel parts of the blanket and austenitic steels used for pipelines and process equipment. Temperatures range from ambient up to 550°C. Since both steel kinds can store and transport hydrogen to a considerable extent, design and safety analyses depend on hydrogen transport parameters for these materials over the full operation temperature range. Therefore, a qualified data base will be necessary for the future work on DEMO. This contribution presents an overview of available transport parameters of different RAFM and austenitic steels, also regarding exothermic hydride generating alloy elements and pure elements. A pre-selection of materials for a planned permeation chamber is discussed on the base of these data.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2017.04.024