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Curated with aloha by
Ted Mooney, P.E. RET

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Coating for Titanium Needed

I am in need of a coating for titanium that will provide me with a harder surface, but more importantly a lower friction coefficient. I have an application where a steel shaft is riding on titanium supports, and need to reduce the friction. (wet lubrication isn't an option)

Scott A. Wheeler
R&D - Albany, New York
2004

Alkaline anodizing should be one of the things you look at. I think it AMS 2488.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2004

There is evidence that cryogenic treatment does modestly increase hardness of titanium (unlike steels). We also know that steels exhibit a reduced coefficient of friction and better heat dissipation properties after treatment. Will your titanium application get both benefits? I can't say for sure, but it may be worth experimenting.

Robin Rhodes
Worcester, Massachusetts
2004

Try nitriding or one of the specialty treatments developed by General Magnaplate.

Toby Padfield
Automotive module supplier - Michigan
2004

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