Explains the technique of cathodic protection in conjunction with the galvanic series of metals and cell action, plus the history and development of cathodic protection. Touches upon thermodynamic considerations, and uses polarization curves to explain the rates of corrosion reaction and how these rates can […]
It is best to review the differences between these two protection techniques before discussing their application in the Paper Industry. Corrosionists have been aware of the electrochemical nature of aqueous corrosion since the studies of Davy & Faraday. Apart from some early experiments using zinc […]
Following a short review of corrosion theory, cathodic and anodic protection is described with reference to some practical problems that arise from the application of these techniques. DOWNLOAD PAPER
“There is a sucker born every minute” is a statement attributed to P.T. Barnum of circus fame who also opined that “Every crowd has a silver lining.” This apparent truism has encouraged all kinds of grifters, con men, and others scoundrels to devise schemes to […]
In a recent editorial m the British Corrosion Journal, they referred to the objection of a councilor on Surrey County Council who objected to the provision of a E 20,000 sterling laboratory to be associated with a new sewage disposal plant. He objected because he […]
Magnetism and magnetic effects are know to nearly everyone but the explanation of how magnetism behaves can be very complicated. This presentation will attempt to simplify magnetic theory to permit the understanding of magnetic fields and their influence on various materials. The nature and strength […]
This paper summarizes the results of ten years of External Corrosion Direct Assessment (ECDA) application on more than 100 projects and includes a number of important lessons learned during the process. The large majority of the ECDA projects resulted in “clean bills of health” for […]
This paper outlines the procedures used in designing a cathodic protection systems for new or existing water piping. Both sacrificial and impressed current systems are discussed, and design examples for various application of these systems are also given. DOWNLOAD PAPER
The data obtained from several municipal watermains corrosion studies in the Province of Ontario is presented. This data corroborates the findings of a previous study indicating that the galvanic couple formed by the connection of the copper service piping to watermain is a principal factor […]
This paper discusses some of the corrosion problems typically experienced by the underground portions of electrical transmission line towers, and examines cathodic protection as a method by which tower footing corrosion can be prevented. A case history of one power company’s cathodic protection experiences is […]
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