Nondestructive Evaluation of Creep Damage of High Cr Ferritic Steels by EMAT-Nonlinear ECT multi-sensor

2009 Fiscal Year Final Research Report

• Project/Area Number: 20760062
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Materials/Mechanics of materials
• Research Institution: Tohoku University
• Principal Investigator: UCHIMOTO Tetsuya Tohoku University, 流体科学研究所, 准教授 (70313038)
• Project Period (FY): 2008 – 2009
• Keywords: 改良9Cr1Mo鋼 / クリープ損傷評価 / マルチセンサ / 非線形渦電流試験 / 電磁超音波試験 / 転位 / 析出物

Research Abstract

This study aims at quantitative evaluation of micro-structural change by creep damage of high Cr ferritic steels by electromagnetic acoustic transducer (EMAT)-nonlinear eddy current testing (ECT) multi-sensor, and the followings were investigated. Examined were the relationship between structural change by creep damage and acoustic/electromagnetic properties. Finally, structure of EMAT-Nonlinear ECT multi-sensor was discussed to evaluate the micro-structural change by creep damage of high Cr ferritic steels.

Research Products

• [Journal Article] 電磁超音波-渦電流複合プローブを用いた鋳鉄の非破壊材質評価日本機械学会論文集A編 (2010)
  • Author(s): 大瀧啓太郎, 内一哲哉, 高木敏行
  • Journal Title: 第76巻 Pages: 968-975
  • Peer Reviewed
• [Presentation] Material characterization of Cast Irons with an EMAT/EC Dual Probe (2009)
  • Author(s): Keitaro Ohtaki, Tetsuya Uchimoto, Toshiyuki Takagi
  • Organizer: The 14th International Symposium on Applied Electromagnetics and Mechanics
  • Place of Presentation: Xi'an, China.
  • Year and Date: 20090920-20090924
• [Presentation] Application of an EMAT/EC Dual Probe for Material Characterization of Cast Irons (2009)
  • Author(s): Keitaro Ohtaki, Tetsuya Uchimoto, Toshiyuki Takagi
  • Organizer: Sixth International Conference on Flow Dynamics
  • Place of Presentation: Sendai.
  • Year and Date: 2009-11-05
• [Presentation] 非線形電磁応答に基づく高クロム鋼のクリープ損傷評価 (2009)
  • Author(s): 上野聡一, 内一哲哉, 高木敏行, 高橋由紀夫
  • Organizer: 日本機械学会東北支部第44期講演会
  • Place of Presentation: 仙台
  • Year and Date: 2009-03-13
• [Presentation] 電磁超音波-過電流複合プローブを用いた鋳鉄の非破壊材質評価 (2009)
  • Author(s): 大瀧啓太郎, 内一哲哉, 高木敏行
  • Organizer: 日本機械学会東北学生会第39回卒業研究発表講演会
  • Place of Presentation: 秋田
  • Year and Date: 2009-03-06
• [Presentation] 電磁非破壊評価を用いた高クロム鋼のクリープ損傷に伴う組織変化の評価 (2008)
  • Author(s): 上野聡一, 内一哲哉, 高木敏行, 高橋由紀夫
  • Organizer: 日本非破壊検査協会平成20年度秋季大会 pp.251-252
  • Place of Presentation: 多賀城
  • Year and Date: 20081105-20081107
• [Presentation] Evaluation of Microstructure Change by Creep Damage in High Chromium Ferritic Steels Using Electromagnetic Non-destructive Method (2008)
  • Author(s): S.Ueno, T.Uchimoto, T.Takagi, Y.Takahashi
  • Organizer: Proceedings of Eighth International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration
  • Place of Presentation: Sendai.
  • Year and Date: 2008-12-19