Accession Number:

AD0499552

Title:

A Zn Anode Cathodic Protection System on the AFDL-20

Descriptive Note:

Technical note

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s):

• Streed, E. R.

Report Date:

1957-06-05

Pagination or Media Count:

21.0

Abstract:

A zinc anode cathodic protection system comprised of six 60-lb anodes suspended around the hull periphery performed adequately for approximately 18 months in a sea water environment. Operational maintenance was required for removal of the anodes during relocation of the drydock and for periodic measurement of the hull potential. If a galvanic anode system is preferred to an impressed current system on the basis of simplicity, cost and maintenance, zinc is recommended.

Descriptors:

• *CORROSION INHIBITION
• *CATHODIC PROTECTION
• MAINTENANCE
• LIFE EXPECTANCY(SERVICE LIFE)
• ELECTROCHEMISTRY
• SURFACE PROPERTIES
• SEA WATER
• WEATHERPROOFING
• FLOATING DOCKS
• DRYDOCK EQUIPMENT
• ANODES
• NAVAL EQUIPMENT
• ZINC
• OXIDATION
• VOLTAGE
• HULLS(MARINE)
• FILMS

Subject Categories:

• Properties of Metals and Alloys
• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE