LAYERED SYSTEM WITH IMPROVED CORROSION RESISTANCE Russian patent published in 2014 - IPC C23C28/02 C23C30/00 

FIELD: metallurgy industry.

SUBSTANCE: invention relates to the field of protecting metals against corrosion, in particular structural elements that are exposed to sea water and/or hydraulic structural components. A corrosion-resistant coating has corrosion resistance that meets the standard ASTM G48, the method A, and consists of the first inner layer and the second outer layer deposited on the first layer, and the second outer layer is a layer of a metal-nickel alloy, where the metal is selected from the group consisting of tin, copper, iron, tungsten and cobalt or an alloy of these metals, and the first inner layer is a bronze alloy or a layer of a metal from the group consisting of molybdenum, niobium, cobalt, vanadium, manganese, titanium, and magnesium or an alloy of these metals. The method comprises the deposition of the first inner layer on the surface of the substrate, and the deposition of the second outer layer on the first layer, and as the second outer layer a layer of a metal-nickel alloy is deposited, where the metal is selected from the group consisting of tin, copper, iron, tungsten and cobalt or an alloy of these metals, and as the first inner layer a layer of bronze alloy is deposited or a metal layer of the group consisting of molybdenum, niobium, cobalt, vanadium, manganese, titanium, magnesium or an alloy of these metals.

EFFECT: improved mechanical strength and corrosion resistance of the coating.

5 cl