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자료유형
학술저널
저자정보
Zunqi Xiao (Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academ) Jing Liu (Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academ) Zhizhong Jiang (Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academ) Lin Luo (Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academ)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제54권 제6호
발행연도
2022.6
수록면
1,954 - 1,961 (8page)
DOI
https://doi.org/10.1016/j.net.2021.12.014

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Lead-based fast reactor (LFR) has become one of the most promising reactors for Generation IV nuclearsystems. A developing trend of LFR is high efficiency, along with operation temperatures up to 800 C oreven higher. One of key issues in the high-efficiency LFR is corrosion of cladding materials with lead athigh temperatures. In this study, corrosion behavior of some refractory metals (Nb, Nb521, and Mo-0.5La)was investigated in static lead at 1000 C for 1000 h. The results showed that Nb and Nb521 exhibited anintense dissolution corrosion with obvious lead penetration after corrosion, and lead penetrationextended along the grain boundaries of the specimens. Furthermore, Nb521 showed a better corrosionresistance than that of Nb as a result of the elements of W and Mo included in Nb521. Mo-0.5La showedmuch better corrosion resistance than that of Nb and Nb521, and no lead penetration could be observed. However, an etched morphology appeared on the surface of Mo-0.5La, indicating the occurrence ofcorrosion to a certain degree. The results indicate that Mo-0.5La is compatible with lead up to 1000 C. While Nb and

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