Mechanical Properties and Permeabilty of Hydrogen Isotopes through CrNi35WTiAL Alloy, Containing Radiogenic Helium
| Autor: | I. L. Malkov, A. V. Vertey, I. P. Maksimkin, I. Boitsov, A.Y. Baurin, R. K. Musyaev, A. A. Yukhimchuk, E. V. Shevnin |
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| Rok vydání: | 2015 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Hydrogen 020209 energy Mechanical Engineering Alloy Analytical chemistry chemistry.chemical_element 02 engineering and technology Atmospheric temperature range engineering.material 01 natural sciences 010305 fluids & plasmas Nuclear Energy and Engineering chemistry Deuterium Helium-3 0103 physical sciences 0202 electrical engineering electronic engineering information engineering engineering General Materials Science Isotopes of helium Helium Radioactive decay Civil and Structural Engineering |
| Zdroj: | Fusion Science and Technology. 67:459-462 |
| ISSN: | 1943-7641 1536-1055 |
| DOI: | 10.13182/fst14-t54 |
| Popis: | The long-term contact of structural materials (SM) with tritium-containing media makes their properties in terms of kinetic permeability of hydrogen isotopes change. This change is the consequence of the defect formation in SM due to the result of {sup 3}He build-up generated by the radioactive decay of tritium dissolved in SM. This paper presents the experimental results concerning the permeability of hydrogen isotopes through CrNi35WTiAl alloy containing {sup 3}He and the impact of the presence of {sup 3}He and H on its mechanical properties. Tensile tests of cylindrical samples containing various concentrations of {sup 3}He (90, 230 and 560 appm) have been performed in inert and hydrogen atmospheres. The build-up of {sup 3}He has been made using the 'helium trick' technique. The maximal decrease in the plastic characteristics of the CrNi35WTiAl alloy occurs in samples with the highest {sup 3}He (560 appm) content at 873 K. The permeability of deuterium through the CrNi35WTiAl alloy in the initial state and that with 560 appm of {sup 3}He content was explored. The presence of this {sup 3}He concentration has shown an increase in deuterium permeability, evidently due to structural changes in the material under the impact of radiogenic helium. |
| Databáze: | OpenAIRE |
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