Olaf Greve wrote:
<snip>
Now, supposing
> this is aluminium, I seem to remember that (sea) ships use blocks of
> aluminium as so-called "sacrificial metal", the idea is that aluminium is a
> stronger reductor than the metal of the ship it self, causing the aluminium
> to get oxidised rather than the ship
Close, but I think the sacrifical metal is zinc instead of aluminum.
later,
mike m.
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