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Carbon/epoxy with Ti-Ni: Galvanic Corrosion?

Carbon/epoxy with Ti-Ni: Galvanic Corrosion?

Carbon/epoxy with Ti-Ni: Galvanic Corrosion?

(OP)
Hello everyone,

I am currently designing a structure made of carbon fiber composite plates (the resin is epoxy) incorporating some Ti-Ni inserts. Ti-Ni is a shape memory alloy. I am wondering if there could be a galvanic corrosion problem with this design (carbon with Ti-Ni). The structure is intended to be used in aircrafts. It would be appreciated if someone could give me some hints, or indicate a trustable web site that could help.

Thanks a lot!

RE: Carbon/epoxy with Ti-Ni: Galvanic Corrosion?

Galvanic corrosion is a possibility.  How would the inserts be inserted?  Some type of wet assembly using an epoxy resin would isolate the Ni-Ti from the CFRP composite and thereby minimize the chance of corrosion.  Corrosion inhibitors (polysulfide sealants or similar) may also be a possibility.  A targeted google search would probably find some useful references.  Two general references are the following:

MIL-HDBK-729 CORROSION & CORROSION PREVENTION METALS
http://assist.daps.dla.mil/quicksearch/basic_profile.cfm?ident_number=54073

MIL-HDBK-1568 Material and Processes for Corrosion Prevention and Control in Aerospace Weapons Systems
http://assist.daps.dla.mil/quicksearch/basic_profile.cfm?ident_number=201397
 

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