Evaluation of creep damage of high Cr ferritic steel by non-linear eddy current testing focusing on dynamic magnetization process

基于动态磁化过程的非线性涡流检测评价高铬铁素体钢的蠕变损伤

• 批准号: 23360421
• 负责人: UCHIMOTO Tetsuya
• 金额: $ 11.98万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23360421/
• 关键词: 非破壊評価; 高クロム耐熱鋼; クリープ損傷; 動的磁化過程; 高クロム鋼; 原子力材料; 核燃料

This study investigates the possibility of nondestructive evaluation of structural changes by creep damage of Mod. 9Cr-1Mo steel which is used for structural material of the Japanese demonstration reactor of fast breeder, JSFR. For the purpose, dislocation density and precipitations of creep specimens were quantitatively analyzed, and frequency response of dynamic magnetization process were evaluated by the magneto-optical Kerr effect measurements and the FEM analysis of electromagnetic field. Through these investigations, the relation between structural change of creep specimens and dynamic response of magnetization were organized and the mechanism was discussed. Based on the measuring principle, the creep specimens of Mod. 9Cr-1Mo steel were evaluated by the non-linear eddy current method and the feasibility of evaluating structural change by creep damage was demonstrated.

本文研究了日本快中子增殖示范堆（JSFR）结构材料9 Cr-1 Mo钢蠕变损伤引起的结构变化的无损评价的可能性。通过磁光克尔效应测量和电磁场有限元分析，定量分析了蠕变试样的位错密度和析出相，并对动态磁化过程的频率响应进行了评价。通过这些研究，整理了蠕变试样的结构变化与磁化动态响应之间的关系，并对其机理进行了探讨。根据非线性涡流检测原理，对9 Cr-1 Mo钢蠕变试样进行了非线性涡流检测，论证了用蠕变损伤评价组织变化的可行性。

项目成果

非線形渦電流法による 12CrMoWV鋼のクリープ損傷評価

非线性涡流法评估12CrMoWV钢的蠕变损伤

• 作者: K.Ishii;A. Terakawa;S. Matsuyama;A. Ishizaki;H. Arai;N. Osada;H. Sugai;H. Takahashi;K. Sera;H. Sasaki;K. Sasaki;T. Sawamura;高橋洋平，内一哲哉，高木敏行
• 通讯作者: 高橋洋平，内一哲哉，高木敏行

Evaluation of Creep Damage of High Cr Ferritic Steels by Magnetic Nondestructive Testing Methods

磁力无损检测方法评价高铬铁素体钢的蠕变损伤

• 作者: Tetsuya Uchimoto;Toshiyuki Takagi
• 通讯作者: Toshiyuki Takagi

Electromagnetic modeling of fatigue cracks in plant environment for eddy current testing

用于涡流检测的工厂环境中疲劳裂纹的电磁建模

• DOI: 10.3233/jae-2012-1469
• 发表时间: 2012
• 期刊: International Journal of Applied Electromagnetics and Mechanics
• 影响因子: 0.6
• 作者: Tetsuya Uchimoto;Toshiyuki Takagi;Keitaro Ohtaki;Yoichi Takeda;Akira Kawasaki
• 通讯作者: Akira Kawasaki

改良9Cr-1Mo 鋼のクリープ損傷の電磁非破壊評価の数値電磁解析による検討, 安全・安心な社会を築く先進材料・非破壊計測技術

利用数值电磁分析、先进材料和无损测量技术对改性 9Cr-1Mo 钢蠕变损伤进行无损电磁评估，以构建安全可靠的社会

• 发表时间: 2014
• 作者: 松本貴則;内一哲哉;高木敏行;高屋茂
• 通讯作者: 高屋茂