INVESTIGATION OF THE CORROSION RESISTANCE OF ALUMINUM-STEEL ASSEMBLIES EXPOSED TO SEA WATER -PART III: EVALUATION OF ONE-YEAR SAMPLES.

Abstract

The first set of riveted, aluminum-steel assemblies was removed after exposure in tide-range immersion for one year. An evaluation of these assemblies was made on the basis of exterior appearance, the condition of faying surfaces, and a comparison of their breaking strength with unexposed, control samples. The results of this evaluation show that (1) there has been a small loss in the breaking strength of exposed assemblies, (2) the attack of faying surfaces is more a function of the protective paint and joint insulation system than of the rivet material or the aluminum alloy used in the assembly, and (3) significant attack of aluminum exterior surfaces by copper, deposited from the anti-fouling paint used, may cause significant damage of the samples still in test before completion of the program. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 20, 1963
Accession Number
AD0431266

Entities

People

  • Thomas A. Lowe

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Assembly
  • Chemical Attack (Degradation)
  • Corrosion
  • Corrosion Resistance
  • Insulation
  • Material Degradation Processes
  • Materials
  • Paints
  • Resistance
  • Sea Water
  • Test And Evaluation

Readers

  • Forest Ecology
  • Nanoscale Plasmonic Nanotechnology
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Microelectronics