馬渕 靖宏
著者に関連した記事は3件です。
更新情報
第5回
円筒形炉内構造物に対する評価における未点検範囲の扱いに関するガイドラインの改訂について
著者:
堂崎 浩二,Koji DOZAKI,伊東 敬,Takashi ITO,馬渕 靖宏,Yasuhiro MABUCHI
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Cylindrical Reactor Internals Flaw Characterization JANTI Guidelines Uninspected region
堂崎 浩二,Koji DOZAKI,伊東 敬,Takashi ITO,馬渕 靖宏,Yasuhiro MABUCHI
発刊日:
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Cylindrical Reactor Internals Flaw Characterization JANTI Guidelines Uninspected region
“Guidelines for Inspection and Evaluation of Reactor Internals”, published by Thermal and Nuclear Power Engineering Society (TENPES) and taken over by Japan Nuclear Technology Institute (JANTI), adopted a very conservative assumption on flaw characterization for uninspected region of cylindrical components. Fully penetrated flaw should be assumed for uninspected region, when SCC is found and flaw evaluation is performed on cylindrical core internals such as core shroud. The authors suggested a modified me...
英字タイトル:
Technical Basis for Revision of Guidelines for Inspection and Evaluation of Reactor Internals on Flaw Characterization for Uninspected Region of Cylindrical Components
英字タイトル:
Technical Basis for Revision of Guidelines for Inspection and Evaluation of Reactor Internals on Flaw Characterization for Uninspected Region of Cylindrical Components
第6回
沸騰水型原子炉の蒸気乾燥器及び主蒸気系の流力音響共鳴振動
著者:
高橋 志郎,Shiro TAKAHASHI,奥山 圭太,Keita OKUYAMA,田村 明紀,Akinori TAMURA,大塚 雅哉,Masaya OHTSUKA,吉川 和宏,Kazuhiro YOSHIKAWA,椿 正昭,Masaaki TSUBAKI,馬渕 靖宏,Yasuhiro MABUCHI
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Boiling Water Reactor Flow-Induced Acoustic Resonance Safety Relief Valve Steam Dryer
高橋 志郎,Shiro TAKAHASHI,奥山 圭太,Keita OKUYAMA,田村 明紀,Akinori TAMURA,大塚 雅哉,Masaya OHTSUKA,吉川 和宏,Kazuhiro YOSHIKAWA,椿 正昭,Masaaki TSUBAKI,馬渕 靖宏,Yasuhiro MABUCHI
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Boiling Water Reactor Flow-Induced Acoustic Resonance Safety Relief Valve Steam Dryer
The BWR-3 steam dryer in the Quad Cities Unit 2 Nuclear Power Plant was damaged by high cycle fatigue due to acoustic-induced vibration under extended power up-rate conditions. The dryer failure was as attributed to flow-in duced acoustic resonance at the stub pipes of safety relief valves (SRVs) in the main steam lines (MSLs). The acoustic resonance was considered to be generated by interaction between the sound field and unstable shear layer s across the closed side branches with SRV stub pipes. We have ...
英字タイトル:
Flow-induced Acoustic Resonance Vibration of Main Steam Lines and Dryer in Boiling Water Reactor
英字タイトル:
Flow-induced Acoustic Resonance Vibration of Main Steam Lines and Dryer in Boiling Water Reactor
第6回
表面処理方法がステンレス材料の表面組織に与える影響
著者:
馬渕 靖宏,玉古 博朗,金田 潤也,山下 理道,宮川 雅彦
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Clean N Strip Flapper Wheel Polishing SCC Shot Peening Water Jet Peening
馬渕 靖宏,玉古 博朗,金田 潤也,山下 理道,宮川 雅彦
発刊日:
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Clean N Strip Flapper Wheel Polishing SCC Shot Peening Water Jet Peening
It is revealed that Stress Corrosion Cracking (SCC) on the surface of the L-grade stainless steels in Nuclear Power Plants is caused by heavily cold work of the materials. The microstructure, hardness and residual stress on the surface of the material are factors for SCC initiation. There are surface treatment methods that is effective reduction on SCC such as Flap Wheel (FW) polishing, Clean N Strip (CNS) polishing, Water Jet Peening (WJP) and Shot Peening(SP). In this paper, the characteristics of the su...
英字タイトル:
Effects of Surface Treatments on Microstructure in Stainless Steel
英字タイトル:
Effects of Surface Treatments on Microstructure in Stainless Steel