ISSN: 0090-3973
Page Count: 12

The Effect of Oxygen, Salt Concentration, and pH on Galvanic Cells Between a Carbon Filled Polyethylene Cathode and Various Metal Anodes
Schick, G
Member of technical staff, Bell Telephone Laboratories, Inc., N.J.

Abstract

Laboratory experimental techniques are described for the study of galvanic corrosion between carbon black filled polyethylene cathode and galvanized steel, stainless steel, copper, tinned copper, and lead anodes. The environmental variables include 0.001N to 1.0N sodium chloride and sodium sulfate solutions in air-containing and deaerated conditions. Experiments in 1N sodium chloride, adjusted with hydrochloric acid or sodium hydroxide, show the behavior of the above galvanic cells in the 2.5 to 10.5 pH range. Corrosion current densities derived from polarization diagrams for the galvanic couples are presented to demonstrate the effectiveness of the experimental technique.

Keywords:
galvanic corrosion, cathodic polarization, carbon steel, stainless steel, carbon filled polyethylene, galvanized steel, galvanized cast iron, copper, tin coated copper, lead

Paper ID: JTE10610J
DOI: 10.1520/JTE10610J
ASTM International is a member of CrossRef.