The Corrosion Behavior of Copper-Based Materials Exposed to Natural Seawater
Abstract
The corrosion behavior of Cu, Cu-Ni alloys, Admiralty Brass and A1 Bronze has been studied as a function of exposure time to natural seawater at the Naval Civil Engineering Laboratory in Port Huenema, California. Samples were exposed at the open-circuit potential Bcorr and at - 850 mV vs SCE. The properties of the biofilms and rhe calcareous deposits were examined as a function of exposure time with electrochemical impedance spectroacopy (MIS) and SEM/EDAX. Comparisons will be made with the results for the stainless steels 304, 316, A16X, and Ti grade 2 which have been exposed under identical conditions. The effects of mana transport have been studied with a rotating cylinder electrode in laboratory experiments and in natural seawater. Current data were collected as a function of rotation spread at Bcorr, at - 850 mV Va SCE and at an anodic potential. Comparisons were made with the results for stainless steel 304 and Ti grade 2 which showed different effects of mass transport on the electrochemical reactions which determine the corrosion behavior of these materials.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1990
- Accession Number
- ADA229005
Entities
People
- Bryan Little
- F. Mansfeld
- H. Shih
- P. Wagner
- R. Ray
- R. Teal
Organizations
- United States Naval Research Laboratory