Hi Syed - depends on the product use environment, what your
cathode-to-anode ratio is and the type of interface you have, to understand
the possible corrosion issues you may encounter. The Galvanic tables are
not particularly helpful as they are for pure elements (not alloys) and
don't take into effect a number of factors. Good for a first order estimate
but not much beyond that aspect.

Dave Hillman
Rockwell Collins
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On Mon, Sep 15, 2014 at 3:22 PM, Syed Ahmad <[log in to unmask]> wrote:

> Looking for observations on an aluminum plate mechanically attached to a
> gold plated PCB for shielding purposes: Galvanic reactions? Corrosion
> possibilities?
>
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