Here is a good powerpoint presentation about galvanic corrosion.
www.rose-hulman.edu/~stienstr/me%20328/Day_36.ppt
----- Original Message -----
From: "Hugh" <h...@scoraigwind.co.uk>
To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org>
Sent: Saturday, January 15, 2011 2:46 PM
Subject: Re: [RE-wrenches] Incompatible Metals
>Hi Kelly:
Are you sure about the XHHW listing. Doesn't that designate aluminum
wire? You mentioned CU before.
I have seen some discolloration from copper wire against module
frames, but not real corrosion.
The way I understand galvanic corrosion is that it is produced by a
current as in a battery, and if the base metal side of the equation is
large in area, and the noble metal is small then the effect is diluted.
If you use aluminium rivets in a copper vessel then they might disappear
fast, but copper rivets will have little effect on an aluminum vessel. So
much for the theory anyway.
--
Hugh Piggott
Scoraig
http://www.scoraigwind.co.uk
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