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Development of Nondestructive Evaluation System Using the Excitation Type High Sensitivity Magnetic Sensor to Ddetect Fatigue Damage of Metallic Material

Research Project

Project/Area Number 15560371
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Measurement engineering
Research InstitutionOita National College of Technology

Principal Investigator

OKA Mohachiro  Oita National College of Technology, Department of Computer and Control Engineering, Professor, 制御情報工学科, 教授 (80107838)

Co-Investigator(Kenkyū-buntansha) KANADA Tsugunori  Oita National College of Technology, Department of Computer and Control Engineering, Professor, 制御情報工学科, 教授 (70040756)
ENOKIZONO Masato  Oita University, Faculty of Engineering, Department of Electric and Electronics Engineering, Professor, 工学部・電気電子工学科, 教授 (40136784)
YAKUSHIJI Terutoshi  Oita National College of Technology, Department of Mechanical Engineering, Professor, 機械工学科, 教授 (90210228)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2004: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2003: ¥2,800,000 (Direct Cost: ¥2,800,000)
KeywordsNon-destructive Evaluation / Excitation Type Magnetic Sensor / SUS304 / SUS316 / Austenite / Martensite / Bending Stress / Fatigue Damage / 透磁率 / 励磁コイル / 垂直残留磁化
Research Abstract

In this project, we have elucidated the following results for the evaluation of fatigue damage in an austenitic stainless steel using the FG magnetic sensor and we developed the non-destructive evaluation system using the excitation type high sensitivity magnetic sensor to detect fatigue damage of metallic material.
In order to estimate the amount of bending fatigue damage on austenitic stainless steel plates, we have investigated the relationship between plane bending stress and residual magnetization caused by martensitic structure in austenitic stainless steel plates. Magnetic flux density in the Z component caused by residual magnetization at 1 mm above a specimen is measured by using a high sensitivity thin-film flux-gate magnetic sensor.
The eddy current probe which is a new magnetic sensor to detect fatigue damage on austenitic stainless steels consists of an excitation coil and two pick-up coils wound on a ferrite core. The size of the EC probe is 10 mm x 4 mm x 8 mm.
Results of this project are shown as follows:
1) The value of B_<zmax> clearly increases with the increase of the bending stress (σ_a) and N.
2) The value of B_<zmax> is a useful parameter to estimate the amount of fatigue damage.
3) We could detect the small leakage magnetic flux density on the specimens such as SUS304, SUS304L, SUS316 and SUS316L caused by the residual magnetization by using the FG magnetic sensor.
4) The residual magnetization in SUS316 series is about ten times smaller than SUS304 series.
5) This new eddy current probe was surely able to catch the change in electromagnetic properties such as magnetic permeability caused by the transformation from austenite to martensite in SUS304.
6) The value of Rc_<max> obviously depends on the number of stress cycles.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (16 results)

All 2005 2004 Other

All Journal Article (13 results) Publications (3 results)

  • [Journal Article] Evaluation of Fatigue Damage in an Austenitic Stainless Steel (SUS304) Using the Eddy Current Probe2005

    • Author(s)
      岡 茂八郎 他
    • Journal Title

      ABSTRACTS of The 2005 IEEE International Magnetic Conference

      Pages: 214-214

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] 漏洩磁束によるオーステナイトステンレス鋼の疲労蓄積量評価2005

    • Author(s)
      岡 茂八郎 他
    • Journal Title

      第14回MAGDAコンファレンス(岐阜)講演論文集

      Pages: 170-175

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Fatigue Dependence of the Residual Leakage Magnetic Flux Density in SUS3162005

    • Author(s)
      岡 茂八郎 他
    • Journal Title

      Proceedings of Seoul National University - Oita University Joint Symposium on the Applied Electromagnetics

      Pages: 49-50

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Evaluation of Fatigue Damage in SUS316 and SUS316L Using the FG Magnetic Sensor2005

    • Author(s)
      岡 茂八郎 他
    • Journal Title

      Studies in Applied Electromagnetics and Mechanics, ELECTRICMAGNETIC NONDESTRUCTIVE EVALUATION (IX) (採録済み)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Evaluation of Fatigue Damage in an Austenitic Stainless Steel (SUS304) Using the Eddy Current Probe2005

    • Author(s)
      M.Oka, T.Yakushiji, Y.Tsuchida, M.Enokizono
    • Journal Title

      ABSTRACTS of The 2005 IEEE International Magnetic Conference BW-09

      Pages: 214-214

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Fatigue Dependence of the Residual Leakage Magnetic Flux Density in SUS3162005

    • Author(s)
      M.Oka, T.Yakushiji, T.Tsuchida, M.Enokizono
    • Journal Title

      Proceedings of Seoul National University Oita University Joint Symposium on the Applied Electromagnetics

      Pages: 49-50

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] オーステナイトステンレス鋼(SUS316,SUS316L)の漏洩磁束による平面曲げ疲労評価2005

    • Author(s)
      岡 茂八郎 他
    • Journal Title

      14回MAGDAコンファレンス(岐阜)講演論文集

      Pages: 170-175

    • Related Report
      2004 Annual Research Report
  • [Journal Article] オーステナイトステンレス鋼(SUS316,SUS316L)の漏洩磁束による平面曲げ疲労評価2004

    • Author(s)
      岡 茂八郎 他
    • Journal Title

      第13回MAGDAコンファレンス(仙台)講演論文集

      Pages: 203-206

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 磁気センサによるSUS316Lの引張試験ひずみ評価2004

    • Author(s)
      岡 茂八郎 他
    • Journal Title

      第13回MAGDAコンファレンス(仙台)講演論文集

      Pages: 181-184

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of the the Amount of Fatigue Damage in Austenitic Stainless Steels by the Leakage Magnetic Flux2004

    • Author(s)
      M.Oka, T.Yakushiji, Y.Tsuchida, M.Enokizono
    • Journal Title

      Proceedings of The 14^<th> MAGDA Conference in Gifu

      Pages: 170-175

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of Fatigue Damage in SUS316 and SUS316L Using the FG Magnetic Sensor2004

    • Author(s)
      M.Oka, E.Wada, T.Yakushiji, Y.Tsuchida, M.Enokizono
    • Journal Title

      The 10th International Workshop on Electromagnetic Nondestructive Evaluation, 2004 ENDE Short Papers

      Pages: 80-81

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of the Plane Bending Fatigue Damage in Austenitic Stainless Steels (SUS316 and SUS316L) by the Leakage Magnetic Flux2004

    • Author(s)
      M.Oka, E.Wada, T.Yakushiji, Y.Tsuchida, M.Enokizono
    • Journal Title

      Proceedings of The 13^<th> MAGDA Conference in Sendai

      Pages: 203-206

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of Tensile Strain in SUS316L Using the Magnetic Sensor2004

    • Author(s)
      Y.Tsuchida, M.Oka, T.Yakushiji, M.Enokizono
    • Journal Title

      Proceedings of The 13^<th> MAGDA Conferencein Sendai

      Pages: 181-184

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] 岡茂八郎 他: "Estimation of Fatigue Damage in Austenitic Stainless Steels Using the Perpendicular Residual Magnetization Method for NDE"Record of the Fourth Asian Symposium on Applied Electromagnetics. 59 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 岡茂八郎 他: "オーステナイトステンレス鋼(SUS316,SUS316L)の漏洩磁束による平面曲げ疲労評価"第13回電磁MAGDAコンファレンス(仙台)講演論文集. 203-206 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 吉田隆志, 薬師寺輝敏, 岡茂八郎: "季節によって疲労限度の変化するSUS304鋼の寿命予測"第9回高専シンポジウム講演要旨集. 179 (2004)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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