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Galvanic corrosion on carbon fiber yachts

thread338-483351

Galvanic corrosion on carbon fiber yachts

Galvanic corrosion on carbon fiber yachts

(OP)
Hi there,

I would like to find out if there are any preventative measures for galvanic corrosion on carbon fiber vessels. More specifically, it seems that carbon fiber, when in contact with aluminium for instance, could cause galvanic corrosion. A follow-up question would then be: Can carbon fiber cause stainless screws/bolts to corrode as well, assuming both materials are exposed to seawater?

Cheers

RE: Galvanic corrosion on carbon fiber yachts

(OP)
Thanks

RE: Galvanic corrosion on carbon fiber yachts

Use Ti with C fiber like they do in aerospace.
Coupled to Al is a guaranteed disaster, and common SS alloys will not stand a chance either.
The only real options to mate with CF in wet environments are high alloy SS (6% Mo superaustenitic or superduplex) or Ti alloys.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

RE: Galvanic corrosion on carbon fiber yachts

Carbon fiber must not contact most metals in wet environments. Insulating washers and bushings will work.

RE: Galvanic corrosion on carbon fiber yachts

(OP)
Thanks, I appreciate the feedback

RE: Galvanic corrosion on carbon fiber yachts

I use Teadit 24BB gasket tape between any flanged connections of similar or dissimilar materials on my boats.

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