rob768
Mechanical
- Aug 3, 2005
- 440
Hello all, We have encountered a very serious pitting corrosion in the chromium layer of a Ni/Cr coated steel rod of a hydraulic piston. The nickel layer seems to be fully intact, but the chrome is seriously and very agressively pitted. The corrosion appears, position wise, to be related to a metal scraper ring in the cover of the cylinder, so galvanic corrosion may be an option. Anyone has any experience with similar damages?
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some photo's:
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