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Passivate stainless medical instruments before or after TiN coatings?

March 4, 2008

Should we passivate before or after TiN coating on 17-4 ph stainless steel.
I beleiee we should passivate before but I'm not totally sure.
Thanks for your help.

Scott Jones
- Mcmurray, Pennsylvania, USA

March 6, 2008

Passivation should be before, since TiN is very corrosion resistant by itself. It is quite thin, so it does not have an infinite corrosion resistance life.

James Watts
- Navarre, Florida

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