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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsGeneral Corrosi...General Corrosi...Copper-Nickel-Zinc Corrosion in WaterCopper-Nickel-Zinc Corrosion in Water
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4/8/2005 9:00 AM
 
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A Cu-Ni-Zn alloy we mill seems to develop a white surface deposit when exposed to DI water or water/solvent vapor. We first assumed it was dezincification, but this crystal-like coating is shown to be lead. There is only 1% Pb in this material. How can this be occuring?
 
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4/17/2005 9:00 AM
 
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Kevin: Lead in copper alloys is typically present as a second phase constituent, plus it is anodic to copper, thus its tendency to preferentially corrode in an aqueous medium. Hope this helps! David Hendrix The Hendrix Group Inc.
 
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