CATHODIC PROTECTION CURRENT DEMAND OF VARIOUS ALLOYS IN SEA WATER (paper presented at Corrosion 86, Albert Thomas Convention Center, Houston Texas, March 17-21 1986)

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Authors
  1. Foster, T.
  2. Moores, J.G.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
The long term current demand can be useful when choosing the potential and determining the current output for a cathodic protection system. The current demand of various copper based, aluminum, titanium, stainless, monel, and mild steel alloys at potentials between -0.6V and -1.1V (vs Ag/AgCl) has been monitored for over 800 days. The lowest current densities for most alloys were obtained at 01.9V. The influence of factors such as oxygen level, fouling, and the formation of cathodic film on the current demand have been determined. This investigation was carried out on a state-of-the-art potentiostat designed in-house. The potentiostat can monitor the current demand of up to ten specimens at each of six potentials.
Date of publication
01 Jan 1986
Number of Pages
26
DSTKIM No
86-02068
CANDIS No
96786
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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