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Plating impact resistance

I have an application where I need a plating to protect a surface but it is impacted by a loose ball in a tube due to lateral vibration. What plating properties, thickness, etc., is needed to absorb the energy without inducing wear?

Today the material is brass and I find oxides being dislodged, which then have abrasive action, which accelerate the wear.

The final solution needs to be conductive. For systems of this nature, can both surfaces be of the same material or will this cause sticking problems?

Bob Delong
Engineer - Prescott, Arizona
November 4, 2010

It would help most people if they knew what this "part" was.
I like EN for the tube or a hardened brass or hardened stainless. I personally do not like two of the same surfaces rubbing together. It promotes galling and in extreme cases, cold welding.

James Watts
- Navarre, Florida
November 5, 2010

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