Development of Manufacturing Process of PNC-FMS Wrapper Tube with SUS316 Short Joint
スポンサーリンク
概要
- 論文の詳細を見る
When a ferritic-martensitic stainless steel (PNC-FMS) wrapper tube having far greater swelling resistance against neutron irradiation is applied in the JOYO or MONJU reactor, it becomes necessary to weld it with SUS316 austenitic stainless steel (entrance nozzle and handling head). Such welding between PNC-FMS and SUS316 causes the delta (δ) ferrite formation at heat-affected zone, which leads to significant toughness degradation. In addition, bending of wrapper tube caused by their differential thermal expansion should be straightened. For preventing those problems, manufacturing process of the complex wrapper tube was developed. This process involves TIG-welding with SUS316 short pipe joints in 50 mm length to both ends of a PNC-FMS round tube, and then performing the drawing and normalizing and tempering. Normalizing induces complete disappearance of the δ ferrite in the course of wrapper tube manufacturing. The mechanical properties of PNC-FMS/SUS316 welded zone were confirmed to be equivalent to those of the base metal even after thermal aging.
- 社団法人 日本原子力学会の論文
- 2005-09-25
著者
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FUJIWARA Masayuki
Kobelco, Ltd.
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Kaito T
Japan Atomic Energy Agency
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Kaito Takeji
O-arai Engineering Center Japan Nuclear Cycle Development Institute
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Narita Takeshi
Japan Atomic Energy Agency
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Ukai S
Japan Atomic Energy Agency
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Ukai Shigeharu
O-arai Engineering Center Japan Nuclear Cycle Development Institute
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Kobayashi Tsuguyuki
Japan Atomic Energy Agency
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Kobayashi Tsuguyuki
Komae Laboratory Central Research Institute Of Electric Power Industry
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OHTSUKA Satoshi
Japan Atomic Energy Agency
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NARITA Takeshi
O-arai Engineering Center, Japan Nuclear Cycle Development Institute (JNC)
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OHTSUKA Satoshi
O-arai Engineering Center, Japan Nuclear Cycle Development Institute (JNC)
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OHTSUKA Satoshi
Advanced Nuclear System Research and Development Directorate, Japan Atomic Energy Agency
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Fujiwara Masayuki
Kobelco Research Institute Inc.
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Fujiwara Masayuki
Oarai Engineering Center Japan Nuclear Cycle Development Institute
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Fujiwara Masayuki
Kobelco Ltd.
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Fujiwara M
Oarai Engineering Center Japan Nuclear Cycle Development Institute
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UKAI Shigeharu
Materials Science and Engineering, Faculty of Engineering, Hokkaido University
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