| Project/Area Number |
22560823
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear fusion studies
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
NAGASAKA Takuya 核融合科学研究所, ヘリカル研究部, 准教授 (40311203)
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| Co-Investigator(Kenkyū-buntansha) |
MUROGA Takeo 核融合科学研究所, ヘリカル研究部, 教授 (60174322)
SHIKAMA Tatsuo 東北大学, 金属材料研究所, 教授 (30196365)
NOGAMI Shuhei 東北大学, 工学研究科, 准教授 (00431528)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 低放射化材料 / 核融合炉ブランケット / フェライト鋼 / バナジウム合金 / ステンレス鋼 / 液体ブランケット |
|---|
| Research Abstract |
In the present study, weld joints between low activation materials and commercial nuclear reactor materials were fabricated. Their mechanical properties, microstructures, fundamental irradiation properties and corrosion properties were investigated. Since irradiation hardening at weld metal of low activation ferritic steel-316L stainless steel joints were similar to that for the base metal 316L stainless steels, it is indicated that irradiation hardening and hence irradiation embrittlement are not enhanced in the weld metal. Corrosion tests on weld joints for low activation vanadium alloy exhibited no embrittlement. It is revealed that operation temperature limit for vanadium-316L stainless steel joints is below 600oC due to formation of brittle intermetalics.
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