Corrosion between dissimilar metals

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Re: Corrosion between dissimilar metals

Post by Rick » Tue Dec 05, 2017 8:59 am

Thanks for the explanation, I have always wondered about that

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John Hasler
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Re: Corrosion between dissimilar metals

Post by John Hasler » Tue Dec 05, 2017 9:57 am

Here is a discussion of corrosion in stainless steels:

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Re: Corrosion between dissimilar metals

Post by rudd » Fri Dec 08, 2017 7:46 pm

When you have two dis-similar metals in a corrosive environment, you have electrical potential. If you connect them, yes, it's like a battery.
" In 1800, Volta invented the first true battery, which came to be known as the voltaic pile. The voltaic pile consisted of pairs of copper and zinc discs piled on top of each other, separated by a layer of cloth or cardboard soaked in brine (i.e., the electrolyte)."
Ask one of the nice boat people above how boat zincs work.

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