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Recent progress in reduced activation ferritic steels R&D in Japan

A. Kimura, T. Sawai, K. Shiba, A. Hishinuma, S. Jitsukawa, S. Ukai, A. Kohyama2003年被引用 29Nuclear FusionIF 3出版社

The Japanese reduced activation ferritic steels (RAFSs) R&D road map towards DEMO is shown. The important steps include high-dose irradiation in fission reactors such as the high flux isotope reactor at Oak Ridge National Laboratory, irradiation tests with 14 MeV neutrons in the International Fusion Materials Irradiation Facility and application to ITER test blanket modules to provide an adequate database of RAFSs for the design of DEMO. The current status of RAFS development is also introduced. The major properties of concern are well-known, and process technologies are mostly ready for fusion application. RAFSs are now certainly ready to proceed to the next stage. A materials database is already in hand, and further progress is anticipated with the design of the ITER test blanket. Oxide dispersion strengthening steels are quite promising for high temperature operation of the blanket system, with potential improvements in radiation resistance and in corrosion resistance.

日本語訳

日本の低放射化フェライト鋼(RAFS)のDEMOに向けた研究開発ロードマップを示す。重要なステップには、オークリッジ国立研究所の高中性子束同位体炉などの核分裂炉における高線量照射、国際核融合材料照射施設における14 MeV中性子を用いた照射試験、およびITERテストブランケットモジュールへの適用が含まれ、DEMO設計のための十分なRAFSデータベースを提供する。また、RAFS開発の現状も紹介する。主要な関心事項は周知であり、製造技術はおおむね核融合適用の準備が整っている。RAFSは現在、次の段階に進む準備が確かに整っている。材料データベースはすでに入手可能であり、ITERテストブランケットの設計によりさらなる進展が見込まれる。酸化物分散強化鋼は、ブランケットシステムの高温運転に対して非常に有望であり、耐放射線性と耐食性の向上が期待される。

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