Effects of Microstructural Evolution on Charpy Impact Properties of Modified Ferritic/Martensitic Steel after Neutron Irradiation
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概要
- 論文の詳細を見る
The effects of fast neutron irradiation have been investigated on Charpy impact properties and microstructural evolution of ferritic/martensitic (F/M) 11Cr-0.5Mo-2W, Nb, V stainless steel (PNC-FMS) which were developed by the Japan Atomic Energy Agency for core component applications in advanced fast reactors. One-half-size Charpy specimens were irradiated in the experimental fast reactor JOYO using the material irradiation rig to doses of 4.4 dpa at 773 K and 2.8 dpa at 923 K. Post irradiation Charpy impact tests and microstructural observations by transmission electron microscope were carried out. The results of the Charpy impact tests showed that there was no significant degradation in Charpy impact properties after neutron irradiation at 773 K to 4.4 dpa compared with the as-received specimens, but there was significant degradation in the properties after neutron irradiation at 923 K to 2.8 dpa. The Charpy impact property changes were attributed to matrix softening by recovery of martensite lath structures and to precipitate distributions.
- 社団法人 日本原子力学会の論文
- 2006-06-25
著者
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Ohnuki Somei
Graduate School of Engineering, Hokkaido University
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Ohnuki Somei
Graduate School Of Engineering Hokkaido University
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Abe Yasuhiro
Oarai Research And Development Center Japan Atomic Energy Agency
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YANO Yasuhide
Oarai Research and Development Center, Japan Atomic Energy Agency
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OKA Keiichiro
Graduate School of Engineering, Hokkaido University
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AKASAKA Naoaki
Oarai Research and Development Center, Japan Atomic Energy Agency
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YOSHITAKE Tsunemitsu
Oarai Research and Development Center, Japan Atomic Energy Agency
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Yano Yasuhide
Oarai Engineering Center Japan Nuclear Cycle Development Institute
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Oka Keiichiro
Graduate School Of Engineering Hokkaido University
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Akasaka Naoaki
Oarai Research And Development Center Japan Atomic Energy Agency
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Yoshitake Tsunemitsu
Oarai Research And Development Center Japan Atomic Energy Agency
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- PREFACE
- Mechanical properties and microstructural stability of 11Cr-ferritic/martensitic steel cladding under irradiation