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Examining ZiNi Alloys and Post Plate Fabrication

From Pavco, Inc.

In recent years, the demand for increased corrosion protection of ferrous substrates has significantly increased. Zinc-nickel alloy plating systems are being chosen to meet this need. Often these component parts are subjected to post-plate forming and fabrication processes. Ductility, hardness, and stress were thought to be important physical properties to maintain the integrity of the zinc-nickel deposit during these forming processes. To achieve these goals, the following operating parameters were found to be important: the donor type and denticity of the chelate, the chelate-to-total metal mole ratio and the secondary brightener concentration.

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