CORROSION CHARACTERIZATION AND RESPONSE TO CATHODIC PROTECTION OF EIGHT WIRE-ROPE MATERIALS IN SEA WATER

The corrosion behavior and response to cathodic protection from zinc anodes have been studied on eight wire-rope materials during 790 days exposure in sea water at the NRL Marine Corrosion Research Laboratory, Key West, Florida. The titanium alloy 13V-11Cr-3Al, the nickel-base alloy, and the aluminized steel were inherently corrosion resistant. Based solely on corrosion resistance, their use would be suitable for two years total immersion in sea water even without cathodic protection. Unprotected phosphor bronze, galvanized steel, and copper-nickel clad stainless steels are not suitable for extended use in sea water. Phosphor bronze and galvanized steel would be satisfactory for long-term service if cathodically protected. The 90/10 copper-nickel clad Type 304L stainless steel was essentially corrosion free when cathodically protected. Pitting was not eliminated on unclad Type 304L stainless steel even when cathodically protected. The 90/10 copper-nickel clad Type 205 stainless steel showed localized corrosion on some of the wires when cathodically protected with a zinc anode. (Modified author abstract)

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  • Corporate Authors:

    Naval Research Laboratory

    4555 Overlook Avenue, SW
    Washington, DC  USA  20375-5320
  • Authors:
    • Lennox Jr, T J
    • Groover, R E
    • Peterson, M H
  • Publication Date: 1973-9-12

Media Info

  • Pagination: 55 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00051695
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • ISBN: SF51-542
  • Report/Paper Numbers: NRL-7584 Final Rpt
  • Files: TRIS
  • Created Date: Mar 12 1974 12:00AM