Corrosion-resistant plating system

摘要

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.

主权项

1. A method of providing a corrosion-resistant plating on a steel bumper comprising:
depositing a galvanized zinc layer over a steel surface of the steel bumper; depositing a plurality of nickel layers having at least a first porosity and a second porosity over the galvanized zinc layer, wherein at least one of the plurality of nickel layers is electrodeposited to form a burnt deposit layer; and applying a chrome layer over the plurality of nickel layers, wherein said burnt deposit layer is immediately adjacent to said chrome layer, so as to form the corrosion-resistant plating, wherein the corrosion-resistant plating delocalizes and distributes a stress applied at an impact area width-wise and depth-wise over a dispersed area that is larger than the impact area, so as to prevent damage to the steel bumper.