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Nondestructive Observation and Evaluation of Surface Local Defects by Photoacoustic Imaging

Research Project

Project/Area Number 13650099
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionTOHOKUGAKUIN UNIVERSITY

Principal Investigator

HIWATASHI Yoichiro  Faculty of Engineering, 工学部, 助教授 (30048813)

Co-Investigator(Kenkyū-buntansha) HOSHIMIYA Tsutomu  Faculty of Engineering, 工学部, 教授 (40118336)
ENDOH Haruo  Faculty of Engineering, 工学部, 教授 (20137582)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥3,200,000 (Direct Cost: ¥3,200,000)
KeywordsPitting Corrosions / Photoacoustic Microscopy (PAM) / Photoacoustic Imaging / Imersion Test / NDE / Electrochemical Method / 電気化学的測定 / 電気化学的測定法
Research Abstract

In this study, imaging of the real pitting corrosions occurred in salt - alcohol aqueous solution by photoacoustic microscope (PAM) has been demonstrated. Two types of the real pitting corrosions were generated by immersion tests and electrochemical methods. Immersion tests were conducted in sodium chloride and magnesium chloride alcohol aqueous solutions for pure aluminum plate.
Nondestructive measurement of pitting corrosions was carried out with PAM and simultaneous measurement of amplitude and phase of the photoacoustic (PA) signal at every point of scanning was carried out and the PA amplitude and phase images are obtained. The PA amplitude signal intensity varied with both shape and depth of a pitting corrosions. Phase signal intensity relatively reflected the depth and cross section of a pitting corrosion.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Yoichiro Hiwatashi et al.: "Imaging Pitting Corrosion Produced in Salt-Alcohol Aqueous Solution by Photoacoustic Microscopy"Analytical Sciences. 17. 61-62 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Haruo Endoh et al.: "Observation of Branched Complicated Defect and its Nondestructive Evaluation by Photoacoustic Microscopy"Jpn.J.Appl.Phys.. 40・5B. 3604-3605 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Haruo Endoh et al.: "Nondestructive Evaluation Surface-subsurface Complicated Defects Using Photoacoustic Microscope"Optical Engineering for Sensing and Nanotechnology (ICOSN'01). 4416. 428-431 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yoichiro Hiwatashi et al.: "Photoacoustic Microscopic Imaging of Pitting Corrosions Generated in Alcoholic Aqueous Solutions"Proc.APCFS & ATEM'01. 194-198 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Haruo Endoh et al.: "Imaging of Intersecting Surface Defect by Photoacoustic Metod"Proc.APCFS & ATEM'01. 173-177 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Haruo Endoh et al.: "Measurement of Subsurface Defect Shape by Photoacoustic Microscopy"Jpn.J.Appl.Phys.. 41・5B. 3361-3362 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.ENDOH, N.YAEGASHI, Y.HIWATASHI and T.HOSHIMIYA: "Nondestructive Evaluation of Surface-subsurface Combined Defects Using Photoacoustic Microscope"Optical Engineering for Sensing and Nanotechnology (ICOSN '01). Vol.4416. 428-431 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.ENDOH, Y.HIWATASHI and T.HOSHIMIYA: "Observation of Branched Complicated Defect and its Nondestructive Evaluation by Photoacoustic Microscopy"Jpn.J.Appl.Phys.. Vol.40, Part1, No.5B. 3604-3605 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.ENDOH, Y.HIWATASHI and T.HOSHIMIYA: "Imaging of Intersecting Surface Defect by Photoacoustic Method"Proc. APCEFS & ATEM '01. 173-177 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.HIWATASHI, H.ENDOH and T.HOSHIMIYA: "Photoacoustic Microscopy Imaging of Pitting Corrosions Generated in Alcoholic Aqueous Solutions"Proc. APCEFS & ATEM '01. 194-198 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.ENDOH, Y.HIWATASHI and T.HOSHIMIYA: "Measurement of Subsurface Defect Shape by Photoacoustic Microscopy Jpn.J."Jpn.J.Appl.Phys.. Vol.41, Part1, No.5B. 3361-3362 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.Endoh et al.: "Measurement of Subsurface Defect Shape by Photoacoustic Microscopy"Jpn. J. Appl. Phys.,. 41・5B. 3361-3362 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yoichiro Hiwatashi et al.: "Imaging Pitting Corrosion Produced in Salt-Alcohol Aqueous Solution by Photoacoustic Microscopy"Analytical Seiences. 17. 61-62 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Haruo Endoh et al.: "Observation of Branched Complicated Defect and its Nondestructive Evaluation by Photoacoustic Microscopy"Jpn. J. Appl. Phys.. 40・5B. 3604-3605 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Haruo Endoh et al.: "Nondestructive Evaluation of Surface-subsurface Complicated Defects Using Photoacoustic Microscope"Optical Engineering for Sensing and Nanotechnology (ICOSN'01). 4416. 428-431 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yoichiro Hiwatashi et al.: "Photoacoustic Microscopic Imaging of Pitting Corrosions Generated in Alioholic Aqueous Solutions"Proc. APC FS & ATEM'01. 194-198 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Haruo Endoh et al.: "Imaging of Intersecting Surface Pefect by Photoacoustic Method"Proc. APC FS & ATEM'01. 173-177 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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