Radiation-induced segregation at grain boundary in FeCrNi alloy system: effect of temperature variation
| Autor: | Seiichi Watanabe, Norihito Sakaguchi, J. Satou, H. Takahashi, C. Namba |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Nuclear and High Energy Physics
geography Materials science geography.geographical_feature_category Condensed matter physics Kirkendall effect Alloy Metallurgy Rate equation engineering.material Sink (geography) law.invention Nuclear Energy and Engineering law engineering Electron beam processing General Materials Science Grain boundary Austenitic stainless steel Electron microscope |
| Zdroj: | Journal of Nuclear Materials. 239:200-204 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/s0022-3115(96)00422-9 |
| Popis: | The effect of temperature variation during electron irradiation by high-voltage electron microscope (HVEM) on radiation-induced segregation (RIS) at a grain boundary in an austenitic stainless steel was investigated by means of a computer simulation. The calculation was carried out by solving the coupled rate equations for solute and defect concentrations which depend on the Kirkendall effect. The evolution of dislocation sink strength during the temperature variation was also investigated. It turned out that the effect of temperature variation on RIS was very weak and, thus, a high spatial resolution or a high sensitivity detector would be necessary to detect the phenomenon. Moreover, a retardation phenomenon in the sink strength during the temperature variation was found. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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