Corrosion-resistant plating system
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United States of America Patent
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Oct 28, 2014
Grant Date -
Apr 18, 2013
app pub date -
Oct 14, 2011
filing date -
Oct 14, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Methods of providing a corrosion-resistant plating on a steel bumper are provided. A galvanized zinc layer is deposited over a steel substrate. A plurality of nickel layers is deposited over the zinc layer. The plurality of zinc layers has at least a first porosity and a second porosity. A chrome layer is applied over the plurality of nickel layers. The porous nickel layer is immediately adjacent the chrome layer such that a stress applied to the chrome layer is distributed over the porous nickel layer. The porous nickel layer delocalizes a stress applied at an impact area to a dispersed area and the dispersed area is larger than the impact area.
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