Electrolytic Corrosion of Iron and Copper

Abstract

IT is generally accepted that if cast iron and copper are coupled together in a brine solution, the iron, being the less noble member, is likely to suffer corrosion. The copper, on the other hand, will be made ‘more negative’ by contact with the iron and will be prevented in greater or less degree from corroding. The classical work on this subject was that of Sir Humphry Davy, and is well known to electro-chemists and to corrosion engineers.