Letter 4087

Electropolishing for Nitinol wires 

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My name is Emanoel R. of Almeida, and I work in a parts factory for use orthodontics. I seek information on equipment and composition of the electrolyte for polishing of Nitinol (Ni-Ti alloys). Some attempts, in laboratory equipment, presented embrittlement, probably due to nascent hydrogen. Any information is of a lot of help. Thank you advance / Best Regards.

Emanoel Ribeiro de Almeida  
SP - Brazil

Nitinol is subjected to hydrogen embrittlement. Bake after your process for 30 minutes @ 400 F. You will be ok again.

Todd Huehn
- Blaine, Minnesota