Modeling of radiation-induced sink evolution in 6061 aluminum alloy in nuclear reactors
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- Modeling of radiation-induced sink evolution in 6061 aluminum alloy in nuclear reactors
- Choi, Sang Il; Lee, Gyeong-Geun; Kwon, Junhyun; Kim, Ji Hyun
- Issue Date
- WILEY-V C H VERLAG GMBH
- PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, v.213, no.11, pp.3000 - 3006
- The objective of this study is a detailed analysis of the radiation effects on sink generation and growth in order to understand the phenomenon of irradiation hardening of 6061 aluminum alloy in research reactor conditions. In order to have a fundamental understanding, various sink behavior characteristics such as size and number density of dislocation loop, void, and precipitation were calculated and examined. Thereafter, theoretical assessment of various sink effects on irradiation hardening was conducted based on the mean field rate theory (MFRT). Dislocation loop, void, and precipitation were examined by defect flux. For the quantitative analysis of radiation-induced degradation, change in sink size was calculated using number density. 6061 Alloy showed great dependence on precipitation generation and growth. However, dislocation loop and void did not have any significant effect on irradiation hardening. Finally, the behavior of sinks was compared with the experimental results for validation.
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