Development of Oxide Dispersion Strengthened Steels for FBR Core Application, (II) Morphology Improvement by Martensite Transformation
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概要
- 論文の詳細を見る
Previously manufactured oxide dispersion strengthened (ODS) ferritic steel cladding tubes had inferior internal creep rupture strength in the circumferential hoop direction. This unexpected feature of ODS cladding tubes was substantially ascribed to the needle-like grain structure aligned with the forming direction. In this study, the grain morphology was controlled by using the martensite transformation in ODS martensitic steels to produce an equi-axial grain structure. A major improvement in the strength anisotropy was successfully achieved. The most effective yttria addition was about 1mass% in improving the strength of the ODS martensitic steels. A simple addition of titanium was particularly effective in increasing the strength level of the ODS martensitic steels to that of ODS ferritic steels.
- 社団法人 日本原子力学会の論文
- 1998-04-25
著者
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Nishida Toshio
Power Reactor And Nuclear Fuel Development Corporation
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Okuda Takanari
Kobe Special Tube Co. Ltd.
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Ukai S
Japan Atomic Energy Agency
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UKAI Shigeharu
Power Reactor and Nuclear Fuel Development Corporation
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YOSHITAKE Tunemitsu
Power Reactor and Nuclear Fuel Development Corporation
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Yoshitake T
Japan Nuclear Cycle Dev. Inst.
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UKAI Shigeharu
Materials Science and Engineering, Faculty of Engineering, Hokkaido University
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- Development of Oxide Dispersion Strengthened Steels for FBR Core Application, (II) Morphology Improvement by Martensite Transformation
- Development of Oxide Dispersion Strengthened Ferritic Steels for FBR Core Application, (I) Improvement of Mechanical Properties by Recrystallization Processing
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- Development of Oxide Dispersion Strengthened Ferritic Steels for FBR Core Application, (I). Improvement of Mechanical Properties by Recrystallization Processing.:Improvement of Mechanical Properties by Recrystallization Processing