Recent results for the ferritics isotopic tailoring (FIST) experiment
| Autor: | David S. Gelles, Margaret L. Hamilton, Lawrence R. Greenwood, Akira Kohyama, Koreyuki Shiba, Brian M. Oliver, Somei Ohnuki, J.P Robertson, Yutaka Kohno |
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| Rok vydání: | 2002 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Hydrogen Alloy Analytical chemistry chemistry.chemical_element macromolecular substances engineering.material Microstructure Nuclear Energy and Engineering chemistry engineering medicine Hardening (metallurgy) Radiation damage General Materials Science Irradiation Swelling medicine.symptom Radiation hardening Nuclear chemistry |
| Zdroj: | Journal of Nuclear Materials. :212-216 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/s0022-3115(02)01181-9 |
| Popis: | An alloy of F82H prepared using the isotope 54Fe in order to encourage H and He production in a fission reactor has been irradiated in the HFIR JP20 experiment at three temperatures to 7 dpa as TEM disks. Irradiated disks were shear punch tested, examined by TEM, analyzed for He and H content, and compared with previous results in order to quantify irradiation hardening due to transmutation-induced H and He. Hardening due to irradiation is found following irradiation at 300 and 400 °C, that is intermediate between that at lower and higher dose, but hardening is negligible following irradiation at 500 °C. Microstructural examinations show typical behavior of irradiation as a function of irradiation temperature, with moderate swelling after 400 °C irradiation but few bubbles after irradiation at 300 °C. Correlations of change in hardening with He and H content show little indication of transmutation-induced hardening, but measured H levels do not agree with predictions and therefore H production and analysis requires further study. |
| Databáze: | OpenAIRE |
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