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第3回
FBR を対象としたリスクベース保全検討について
著者:
土井 基尾,Motoo DOI,月森 和之,Kazuyuki TSUKIMORI,渡士 克己,Katsumi WATASHI
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An improved method of FBR maintenance program by utilizing the risk-informed approach is discussed through investigation of RI-ISI implementation progr am. This paper presents current activities such as extraction of failure mod es and mechanisms in FBR plant, the risk index ,ranking criteria and so on....
英字タイトル:
Study on Risk-Based Maintenance approach to FBR Plant
第3回
MR センサおよび ECT センサを用いた オーステナイト系ステンレス鋼の疲労損傷評価
著者:
鈴木 隆之,Takayuki SUZUKI,寺本 徳郎,Tokuo TERAMOTO,笹本 明,Akira SASAMOTO
発刊日:
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Fatigue damage evaluation for austenitic stainless steel SUS304 was performed by electromagnetic non-destructive testings using magnetoresista nce(MR) and eddy current technique(ECT) sensors. The fatigue damage and fatigue crack could be detected by MR and ECT sensors. Especially, by M R sensors, changes in fatigue crack of notched specimens were measured, and by ECT sensors fatigue damage of martensitic transformation of pla in specimens was evaluated. These results were explained by the difference of mar...
英字タイトル:
Fatigue Damage Evaluation of Austenitic Stainless Steel by MR and ECT sensors
第3回
Ni基超合金のクリープ,
著者:
赤星 国晃,Kuniaki AKAHOSHI,鈴木 研,Ken SUZUKI,三浦 英生,Hideo MIURA
発刊日:
公開日:
キーワードタグ:
In order to assure the reliability of advanced gas turbine systems, it is very important to evaluate the damage of high temperature materials such as Ni-ba sed superalloys under creep and fatigue conditions quantitatively. The refractive index of the gamma-prime phase was found to be smaller than that of the g amma phase in the Ni-based superalloy, when the wavelength of an irradiated laser beam is shorter than 500 nm. Therefore, it is possible to evaluate the cr eep damage of this material quantitatively ...
英字タイトル:
Basic Study of Non-destructive Evaluation of Creep or Fatigue Damage of Ni-based Superalloy
第3回
Non Destructive Evaluation and Modelling of Structural Materials Durabilityin relation with Maintenology Concerns at INSA Lyon
著者:
Joel COURBON,Alain VINCENT
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Abstract Two aspects of maintenology concerns relating to materials science in a French technical university as I NSA Lyon are addressed: a first one about modelling the life distribution of mechanical components manufactured f rom high strength steel; the second one about the development and interpretation of Barkhausen noise measurements, an original non-destructive evaluation method for the integrity of stainless steel used in nuclear power plants....
英字タイトル:
Non Destructive Evaluation and Modelling of Structural Materials Durabilityin relation with Maintenology Concerns at INSA Lyon
第3回
Numerical Evaluation of ECT Signals of Cracks with Inclination
著者:
Weiying CHENG,Ichiro KOMURA
発刊日:
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キーワードタグ:
Some simplification models are proposed in order to sizing complicated shape defects practically, and the ECT signals of these simplified model cracks are calculated and the difference of ECT signal between the simplified models and i ts perpendicular to conductor surface counterparts is investigated phenomenally. The equivalency of depth sizing of t hese simplified models by using the method for its perpendicular to conductor surface counterparts is discussed also....
英字タイトル:
Numerical Evaluation of ECT Signals of Cracks with Inclination
第3回
PD 資格試験の実施経過とその方向
著者:
笹原 利彦,Toshihiko SASAHARA
発刊日:
公開日:
キーワードタグ:
On November 1, 2005, Central Research Institute of Electric Power Industry (CRIEPI) established PD Center to contribute for the safety of nuclear power plant by tak ing a key role in the Japanese Performance Demonstration system. At the end of March 2006, Japanese Performance Demonstration (JPD) for flaw depth sizing of austen itic stainless steel pipes started. As of beginning of June 2006, 6 JPD examinations had been done for 18 candidates and 9 personnel had successfully cleared the ac ceptance criteria...
英字タイトル:
Experience of Japanese Performance Demonstration and Future Direction
第3回
「ASCC 感受性の予兆診断手法に関する研究
著者:
根本 義之,Yoshiyuki NEMOTO,上野 文義,Fumiyoshi UENO,永江 勇二,Yuji NAGAE,高屋 茂,Shigeru TAKAYA,吉武 庸光,Tsunemitsu YOSHITAKE,青砥 紀身,Kazumi AOTO,塚田 隆,Takashi TSUKADA
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This study proposes a predictive monitoring method for irradiation assisted stress corrosion cracking (IASCC) of austenitic stainless steels. High purity model austenitic stainless steel s were irradiated up to ldpa or 5dpa in JRR-3. IASCC susceptibility of the irradiated specimens was determined by scanning electro microscopy (SEM) on fractured surface of the specimens after slow strain rate tensile (SSRT) testing in high temperature water simulating boiling water reactor (BWR) conditions. Magnetic proper...
英字タイトル:
A Study of Testing Method for Predictive-Monitoring of IASCC Susceptibility
第3回
き裂を有する円筒形炉内構造物に対する構造健全性評価法について
著者:
堂崎 浩二,Koji DOZAKI
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公開日:
キーワードタグ:
This study confirms applicability of so-called twice-slope method that is one of the limit analyses to evaluate llapse or plastic buckling, to cylindrical struc ture of core internals even when it has cracks. Three lindrical test specimens with radius to thickness ratio equivalent of core shroud were used for monotonic nding test with various condition of cracking to confirm applicability of twice-slope method. The other o specimens with duplicate condition of cracking and dif ferent range of loading were ...
英字タイトル:
Evaluation Method of Structural Integrity for Cylindrical Internal Structure with Cracks
第3回
もんじゅ」原子炉容器 ISI システムの開発
著者:
田川 明広,Akihiro TAGAWA,岡本 久彦,Hisahiko OKAMOTO,上田 雅司,Masashi UEDA,山下 卓哉,Takuya YAMASHITA
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This paper describes the development of a new inspection robot and support system used for the in-service inspection (ISI) of the reactor vessel of the FBR MONJU. The inspection is carried o ut using a CCD camera for visual tests and an EMAT for volumetric tests at elevated temperature (200 degree C) and high irradiation dose condition (10Sv/hr). The applicability of a commercia l CCD camera and an EMAT have been confirmed by experiments under severe conditions. In addition, reduction of the robot weight f...
英字タイトル:
Development of ISI system for FBR MONJU reactor vessel
第3回
アコースティック・エミッションと電位揺動の同時計測による進展性塩化物応力腐食割れのモニタリング
著者:
米津 明生,Akio YONEZU,長 秀雄,Hideo CHO,竹本 幹男,Mikio TAKEMOTO
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This paper discusses monitoring method of active path corrosion (anodic dissolution ) type SCC of stainless steel utilizing both of acoustic emission (AE) and corrosion potential fluctuation (CPF). The SCC in this paper is limited t o chloride SCC of Type-304 steel. TG-SCC in boiling 42% MgCl2 solution (JIS ???) does not emit strong AEs since it is caused by anodic dissolution of active path. However we often monitor weak AEs from fracture of corrosion products, friction of SCC and hydrogen gas evolution. ...
英字タイトル:
Monitoring of Chloride Stress Corrosion Cracking utilizing Simultaneous Measurement of Acoustic Emission and Corrosion Potential Fluctuation
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