Just for clarification here's the definition of Galvanic corrosion from the dictionary(Yes cut and pasted): Quote :Galvanic corrosion (also called bimetallic corrosion) is an electro-chemical process in which one metal corrodes preferentially when it is in electrical contact with another, in the presence of an electrolyte. End Quote
Just saying !
Cheers Steve
No quarrel with the definition of "galvanic corrosion" however there are often more that one "metal" or metal contaminants within what would otherwise be a single metal. In fact most metals are made up of more than one base metal. These contaminants (other metals) can set up a galvanic cell within that single piece of metal as demonstrated by the Groco and many other instances of metals from that "other" country.
The well know "dezincification" of brass is due to this process i.e. a galvanic cell caused by different metallic componentsl within a single piece of metal.
PS. Recently retired Certified Corrosion Analyst.
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