cathodic-protection

cathodic protection

noun
protection of ferrous metals against electrolysis by the attachment of sacrificial anodes.
Also called electrolytic protection.


Origin:
1930–35

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World English Dictionary
cathodic protection
 
n
metallurgy See also sacrificial anode a technique for protecting metal structures, such as steel ships and pipelines, from electrolytic corrosion by making the structure the cathode in a cell, either by applying an electromotive force directly or by putting it into contact with a more electropositive metal

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