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
発刊日:
公開日:
キーワードタグ:
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12回
オーステナイトステンレス鋼の中性子照射による磁気特性変化に関する研究
著者:
根本 義之,Yoshiyuki NEMOTO,大石 誠,Makoto OHISHI,伊藤 正泰,Masayasu ITO,加治 芳行,Yoshiyuki KAJI
発刊日:
公開日:
キーワードタグ:
Authors previously reported that Eddy current method and AC magnetization method have potential to be applied for development of diagnostic technics to detect the sign of augmentation of the irradiation assisted stress corrosion cracking (IASCC) susceptibility before cracking on the austenitic stainless steel used as structural material in nuclear power plants. In typical austenitic stainless steels such as type304, magnetic ferrite phase would exist in the alloy before irradiation, and it is concerned...
英字タイトル:
Study on Magnetic Property Change on Neutron Irradiated Austenitic Stainless Steel
論文
オーステナイト系ステンレス鋼の中性子照射による 磁気特性変化に関する研究
著者:
根本 義之,Yoshiyuki NEMOTO,大石 誠,Makoto OHISHI,伊藤 正泰,Masayasu ITO,加治 芳行,Yoshiyuki KAJI,欅田 理,Satoshi KEYAKIDA
発刊日:
公開日:
キーワードタグ:
Authors previously reported that magnetic data obtained by using Eddy current method and AC magnetization method showed correlation with the increase of susceptibility of the irradiation assisted stress corrosion cracking (IASCC) on neutron irradiated austenitic stainless alloy specimens. To discuss the mechanism of the correlation, microstructure observation was conducted on the irradiated specimen, and this result, magnetic the permalloy radiation induced phase (FeNimagnetic 3) formation phase form...
英字タイトル:
Study on Magnetic Property Change on Neutron Irradiated Austenitic Stainless Steel
論文
ステンレス鋼のIASCC感受性と磁気特性の相関性に関する研究
著者:
根本 義之,Yoshiyuki NEMOTO,欅田 理,Satoshi KEYAKIDA,内一 哲哉,Tetsuya UCHIMOTO,塚田 隆,Takashi TSUKADA
発刊日:
公開日:
キーワードタグ:
Authors previously reported leakage magnetic flux density measured by flux gate (FG) sensor seems to depend on irradiation assisted stress corrosion cracking (IASCC) susceptibility of neutron irradiated austenitic stainless steels. This study aimed to evaluate possibility to develop diagnostic method to detect symptom of IASCC by more practical methods such as Eddy current method and AC magnetization method. Magnetic properties of neutron irradiated specimens and mockup specimens were studied and dep...
英字タイトル:
A Study of Correlativity between IASCC Susceptibility and Magnetic Property of Stainless Steel
第5回
漏えい磁束密度測定による照射誘起応力腐食割れ感受性評価
著者:
高屋 茂,Shigeru TAKAYA,根本 義之,Yoshiyuki NEMOTO,内一 哲哉,Tetsuya UCHIMOTO,欅田 理,Satoshi KEYAKIDA
発刊日:
公開日:
キーワードタグ:
In a previous study, authors showed experimentally the correlation between leakage magnetic flux density and irradiation assisted stress corrosion cracking susceptibility of high purity model austenitic stainless ste els. This study aimed to investigate mechanism of the correlation. Tensile test at elevated temperature and aging test were conducted on materials simulating irradiation-induced segregation, and leakage magnetic flux density was measured before and after these tests in order to study the influ...
英字タイトル:
Evaluation of Sensitivity to Irradiation Assisted Stress Corrosion Crackingby Measurement of Leakage Magnetic Flux Density