[TheForge] Electrolysis

[Saint Phlip]

Yeah, I'd avoid combining the two. While there may be enough oxides to
prevent the two from interacting initially, any joint has a certain amount
of wibble wobble (technical term :) which could lead to friction wearing
away the oxides so you have direct contact between the two metals. Being
outside means water to mix into the mess, and disparate metals can generate
their own electricity, so unless you intend to have the contraption,
whatever it is, to be very temporary,  getting or making aluminum rivets is
the way to go.

On Mon, Apr 13, 2020 at 10:40 AM jerry Frost <akfrosty at mtaonline.net> wrote:

> Bruce covered it pretty well, the answer is probably yes. Chromed metal
> isn't very reactive, chrome oxide is what makes stainless steel so
> resistant
> to oxidization. It is susceptible to mechanical erosion though.
>
> I'd use aluminum pop rivets. Or you could use a header and make piened
> rivets.
>
> Frosty
>
> -----Original Message-----
> From: theforge-bounces at mailman.qth.net
> [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Dave Mudge
> Sent: Monday, April 13, 2020 5:37 AM
> To: theforge mailist
> Subject: [TheForge] Electrolysis
>
> Good morning metalheads,
> Question: If I made an aluminum frame for something that is going to be
> used
> outdoors, could I use stainless steel fasteners (lag screws or bolts) or
> would the combination of metals cause electrolysis (corrosion) at the point
> of contact of the dissimilar metals?
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-- 
Saint Phlip

“Everyone knows that dragons don’t exist. But while this simplistic
formulation may satisfy the layman, it does not suffice for the scientific
mind. The School of Higher Neantical Nillity is in fact wholly unconcerned
with what does exist. Indeed, the banality of existence has been so amply
demonstrated, there is no need for us to discuss it any further here. The
brilliant Cerebron, attacking the problem analytically, discovered three
distinct kinds of dragon: the mythical, the chimerical, and the purely
hypothetical. They were all, one might say, nonexistent, but each
non-existed in an entirely different way.” ― Stanisław Lem, The Cyberiad