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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Electric Arc Spraying Compatibility of Stainless Steel on Aluminum

I am wanting to spray stainless steel on an aluminum piston. The piston is used in a natural gas gathering environment. I am concerned with bonding of the metals and galvanic reaction.

Bruce Griffin
- Oklahoma
2006

In metal spraying, the bond strength depends partly on cleanness but mostly on mechanical factors which are related to surface roughness, anchor pattern, impact energy and surface deformation. There are proven methods to maximize adhesion between those two metals. The sprayed SS must be sealed with a compatible sealant to prevent corrosion.

Guillermo Marrufo
Monterrey, NL, Mexico
2006

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