Microstructures of High-Purity Ferritic Steels after Helium Implantation
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概要
- 論文の詳細を見る
The purification and its influence on the property are important in developing low activation ferritic steels for fusion applications. In order to clarify the influence of purity on microstructure development in Fe-Cr alloys, the cavity formation caused by relatively high amount of helium was studied. High-purity Fe-9Cr binary alloys (99.99-99.995 wt% purity) and commercial-grade ones (99.9-99.95 wt% purity) were prepared. About 1000 appm helium associated with about 0.2 dpa was implanted into TEM disks at room temperature by using a Dynamitron accelerator with energy degrader. After post-irradiation annealing at 1123 K for 3.6 ks small cavities were observed in the high-purity alloys half in average size and 3-10 times higher in density compared with commercial-grade ones. The role of trace elements in cavity formation was discussed.ferritic steelsFe-Cr alloylow activation materialshigh purity alloyhelium effectsirradiation effects
- 東北大学の論文
- 1997-03-28
著者
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Hasegawa Akira
Department Of Applied Bioorganic Chemistry Gifu University
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Nagasaka Takuya
Tohoku University
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Kayano Hideo
The Oarai Branch Institute For Materials Reseach Tohoku University
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Abe Katsunori
Department Of Quantum Science And Energy Engineering Tohoku University
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Abe Katsunori
Department Of Nuclear Engineering Tohoku University
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Hasegawa Akira
Department Of Quantum Science And Energy Engineering Tohoku University
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Shibayama T
Hokkaido Univ. Sapporo Jpn
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Shibayama Tamaki
The Oarai Branch Institute For Materials Research Tohoku University
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Hasegawa Akira
Departmemt Of Information And Imaging Sciences Faculty Of Engineering Chiba University
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