Relative Effects of a Graphite Fiber Reinforced Epoxy Composite and Nickel-Aluminum Bronze on a Cathodic Protection System in Seawater

Abstract

This study was designed to quantify the cathodic efficiency of a graphite fiber reinforced epoxy laminated composite material by comparing the amount of zinc consumption from a sacrificial-anode cathodic protection system on the composite with the consumption due to a nickel-aluminum bronze in seawater. Specimens of the composite or of bronze were electrically coupled to anode zinc in seawater at flow velocities of 0 and 10 meters per second for up to 270 days. The composite did not cause a significantly different current demand than bronze on the zinc sacrificial cathodic protection system. It was noted that this represents a worst-case condition for the composite, since the specimens were deliberately prepared with the graphite-fiber ends exposed on the test surface. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1981
Accession Number
ADA109078

Entities

People

  • Aleksander B. Macander
  • David W Taylor
  • HP Hack

Tags

Communities of Interest

  • Cyber
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Body Weight
  • Cathodic Protection
  • Classification
  • Composite Material Fabrication
  • Composite Materials
  • Corrosion
  • Efficiency
  • Epoxy Composites
  • Fabrication
  • Fiber Reinforced Composites
  • Graphite Epoxy Composites
  • Graphitic Materials
  • Laminates
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Materials Science

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Reinforced Composite Materials
  • Surface Engineering/Surface Coating Technology.