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JOM

, Volume 47, Issue 9, pp 36–39 | Cite as

Detecting in-situ active corrosion by a SQUID magnetometer

  • Delin Li
  • Yupei Ma
  • William F. Flanagan
  • Barry D. Lichter
  • John P. WikswoJr.
Aqueous Corrosion Research Summary

Abstract

The magnetic field distributions above the surface of in-situ active corroding 2024-T3 and 7075-T6 aircraft aluminum alloy plates have been measured using a high-resolution superconducting quantum interference device (SQUID) magnetometer. The magnetic field distributions and their variation with time are clearly different for the two aluminum alloys in an identical solution and for 2024-T3 in two different solutions. It is believed that these results demonstrate theability of SQUID to noninvasively detect in-situ active corrosion in aircraft aluminum alloys in a way that present corrosion-detection methods do not allow.

Keywords

Aluminum Alloy Active Corrosion Corrosion Current Squid Magnetometer Corrosion Attack 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© TMS 1995

Authors and Affiliations

  • Delin Li
    • 1
  • Yupei Ma
    • 1
  • William F. Flanagan
    • 1
  • Barry D. Lichter
    • 1
  • John P. WikswoJr.
    • 1
  1. 1.Department of Mechanical EngineeringVanderbilt UniversityUSA

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