Copper-nickel sheathing study-phase 2. Two-year service performance of test panels on the Arco Texas. Final report
This report describes the results of a two-year, in-service test of Copper-Nickel (Cu-Ni) panels emplaced on the underwater hull surfaces of the SS ARCO TEXAS. Four groups of Cu-Ni test panels were installed on the SS ARCO TEXAS, a crude oil tanker. Each group was attached to the hull by a different method. Two of the attachment methods gave a thoroughly satisfactory performance, remaining tightly in place against the hull under severe berthing and canal-lock conditions. The test showed no evidence of galvanic corrosion on nearby steel hull plates. No bio-fouling could be detected on the Cu-Ni panels. In contrast, the steel hull exhibited extensive algal growth after two years of service. The surface roughness of the panels remained almost hydrodynamically smooth over the test period -- measuring approximately 50 micrometers average roughness. The steel hull, by contrast, roughened considerably over the two years. Full technical descriptions of the test and results, along with excellent color photographs of the hull and test panels, are presented in the report.
- Research Organization:
- Copper Development Association, Inc., New York (USA)
- OSTI ID:
- 6362992
- Report Number(s):
- PB-84-242411
- Country of Publication:
- United States
- Language:
- English
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