It's not a corrosion issue, they are compatible, we use cres fasteners all over on the beam (collars and nuts primarily). Similar to Titanium as far as corrosion goes and Titanium is also fully compatible.
Why is the industry standard in aerospace to not intall CRES (15-5PH, AISI 301, or otherwise) on CFRP. I realize that the materials have significantly different modulas of elasticity and would strain differently, therefore it would not be suggested for doublers and or large fittings, but I can...
