Quote:
Originally posted by antonye
Stainless bolts are a good replacement if you're taking them out, as these won't corrode in place and cause problems later.
|
Antony,
Stainless steel in aluminium alloy is one of the worst material combinations possible for galvanic corrosion.
In the electro-chemical series, Al Alloy is anodic (negative potential), whilst stainless steel (and carbon) are cathodic (positive potential).
Unprotected Aluminium will suffer uniform corrosion as a result of galvanic action.
Protected Aluminium (anodised/painted) will be subject to deep pitting corrosion where scratches etc break the surface protection.
The worst combination is magnesium and carbon (assuming that gold and platinum are not used as structural materials!).
That said, I've got S/S bolts all over my bike...as long as there's no "electrolyte" (salt water for instance) then it's not a big deal.
R X