Takehiko SERA
著者に関連した記事は14件です。
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論文
溶接施工の乱れや手直し溶接が残留応力分布に及ぼす 変動程度の評価
著者:
瀬良 健彦,Takehiko SERA,平野 伸朗,Shinro HIRANO,千種 直樹,Naoki CHIGUSA,岡野 成威,Shigetaka OKANO,望月 正人,Masahito MOCHIZUKI,西本 和俊,Kazutoshi NISHIMOTO
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nuclear power plant repair weld residual stress SCC weld heat
瀬良 健彦,Takehiko SERA,平野 伸朗,Shinro HIRANO,千種 直樹,Naoki CHIGUSA,岡野 成威,Shigetaka OKANO,望月 正人,Masahito MOCHIZUKI,西本 和俊,Kazutoshi NISHIMOTO
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nuclear power plant repair weld residual stress SCC weld heat
Abstract Various research projects have been conducted on the residual stress distribution in the pipe weld since it is important to evaluate SCC initiation, or to evaluate structural integrity. Our previous report noted the necessity of considering the influence of complicated residual stresses in multi-path weld joint in order to enhance the evaluation of long-term reliability of mitigated stress. This paper describes the evaluation result about the changes in residual stress caused by variations in...
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Evaluation of varying extent on the residual stress distribution by effect of varied welding application and repair welding
英字タイトル:
Evaluation of varying extent on the residual stress distribution by effect of varied welding application and repair welding
論文
表面加工による残留応力改善の長期信頼性評価について
著者:
瀬良 健彦,Takehiko SERA,平野 伸朗,Shinro HIRANO,千種 直樹,Naoki CHIGUSA,岡野 成威,Shigetaka OKANO,才田 一幸,Kazuyoshi SAIDA,望月 正人,Masahito MOCHIZUKI,西本 和俊,Kazutoshi NISHIMOTO
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Alloy 600 Buff Creep Nuclear Power Plants PWSCC Water Jet Peenning
瀬良 健彦,Takehiko SERA,平野 伸朗,Shinro HIRANO,千種 直樹,Naoki CHIGUSA,岡野 成威,Shigetaka OKANO,才田 一幸,Kazuyoshi SAIDA,望月 正人,Masahito MOCHIZUKI,西本 和俊,Kazutoshi NISHIMOTO
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Alloy 600 Buff Creep Nuclear Power Plants PWSCC Water Jet Peenning
Abstract Surface finishing methods, such as Water Jet Peening (WJP), have been applied to welds in some major components of nuclear power plants as a counter measure to Primary Water Stress Corrosion Cracking (PWSCC). In addition, the methods of surface finishing (buffing treatment) is being standardized, and thus the buffing treatment has been also recognized as the well-established method of improving stress. On the other hand, the long-term stability of peening techniques has been confirmed by acc...
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Prediction method of long-term reliability in improving residual stresses by means of surface finishing
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Prediction method of long-term reliability in improving residual stresses by means of surface finishing
第10回
設計疲労線図の開発状況
著者:
朝田 誠治,Seiji ASADA,樋口 洵,Makoto HIGUCHI,金崎 宏,Hiroshi KANASAKI,瀬良 健彦,Takehiko SERA
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Design Fatigue Curve Fatigue Life Tensile Strength
朝田 誠治,Seiji ASADA,樋口 洵,Makoto HIGUCHI,金崎 宏,Hiroshi KANASAKI,瀬良 健彦,Takehiko SERA
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Design Fatigue Curve Fatigue Life Tensile Strength
In order to develop and propose new design fatigue curves for austenitic stainless steels, carbon steels and low alloy steels that are rational and ha ve clear design basis, Design Fatigue Curve (DFC) subcommittee was established in the Atomic Energy Research Committee in the Japan Welding Engineerin g Society and the study on design fatigue curves are going on. The fatigue curves are proposed as a function of their tensile strength based on large number of fatigue data tested in air from room temperature...
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Status of Development for Design Fatigue Curves
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Status of Development for Design Fatigue Curves
論文
ＰＷＲ容器の異種金属溶接部ECT検査手法の開発
著者:
浅田 義浩,Yoshihiro ASADA,徳久 貴一,Kiichi TOKUHISA,高次 正弥,Masaya TAKATSUGU,黒川 政秋,Masaaki KUROKAWA,川田 かよ子,Kayoko KAWATA,平野 伸朗,Shinro HIRANO,瀬良 健彦,Takehiko SERA
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Dissimilar metal weld ECT testing Nickel-Alloy steel welding PWR RV SCC SG
浅田 義浩,Yoshihiro ASADA,徳久 貴一,Kiichi TOKUHISA,高次 正弥,Masaya TAKATSUGU,黒川 政秋,Masaaki KUROKAWA,川田 かよ子,Kayoko KAWATA,平野 伸朗,Shinro HIRANO,瀬良 健彦,Takehiko SERA
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Dissimilar metal weld ECT testing Nickel-Alloy steel welding PWR RV SCC SG
Eddy Current testing (ECT) for detecting stress corrosion cracks (SCCs) in the vessel's dissimilar metal weld of PWR plants was carried out. Appropriate ECT with a single cross-coil can detect shallow artificial SCCs with depth of 0.5mm or over. And magnetic saturation method is very effective for decreasing noise signals come from permeability change in the boundary region between overlay and buttering of safe-end....
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Development of Eddy Current Testing Method for PWR Vessel’s Dissimilar Metal Weld
英字タイトル:
Development of Eddy Current Testing Method for PWR Vessel’s Dissimilar Metal Weld