Corrosion Morphology in Lap Joints

Abstract

This report describes a metallographic evaluation of lap joint corrosion as a function of location on a KC-135 aircraft. Sites for examination were selected on the fuselage and wings of the aircraft. Both two- and three-dimensional metallographic montages were prepared to characterize the corrosion damages and to determine the extent of the corrosion penetrations. Depending on the location on the airplane, different forms of corrosion were detected, which were dependent on the alloy microstructure. Examination of the microstructure and electrochemical tests provided insight into the distribution and type of corrosion observed in the lap joints.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2000
Accession Number
ADA407945

Entities

People

  • Gerhardus H. Koch
  • Steve E. Styborski

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Aircrafts
  • Airframes
  • Airplanes
  • Aluminum Alloys
  • Anodic Polarization
  • Corrosion
  • Fuselages
  • Grain Boundaries
  • Heat Treatment
  • Materials
  • Mechanical Properties
  • Mechanics
  • Military Aircraft
  • Schematic Diagrams
  • Three Dimensional

Fields of Study

  • Materials science

Readers

  • Explosive Engineering.
  • Materials Science and Engineering.
  • Surface Engineering/Surface Coating Technology.