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Corrosion of nickel plating

We have a torsion spring (302 Stainless) that is nickel coated by electrodeposition. It appears to have a corrosive product on the surface which is green in color. Is this a corrosive product of the plating?

Jason VanMeter
- Rocket Center, WV, USA
2003

It sounds like a corrosion product of nickel to me. But what is causing the corrosion is not clear; nickel is a fairly corrosion resistant material.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003

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