COMPOSITE NANOSTRUCTURED POWDER FOR COATING APPLICATION Russian patent published in 2015 - IPC C22C1/05 B22F1/02 B82B1/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to powder metallurgy, in particular to powder production for application of wear- and corrosion-resistant coatings with high adhesive and cohesive strength by method of cold gas-dynamic spattering. The composite nanostructured powder for coatings application by the method of cold gas-dynamic spattering comprises particles containing metal core out of Hadfield steel, clad layer with thickness 4-8 mcm out of aluminium powder, diffusion layer out of intermetallic compounds with thickness 0.6-1.2 mcm created at border of the core and clad layer during annealing, and reinforced surface layer created during interaction of the clad layer and oxide reinforcing agent comprising nanoparticles 10-100 nm, at that the volume share of the oxide reinforcing agent in the clad layer is 30-40%.

EFFECT: coatings made from the suggested composite nanostructured powder have high adhesive and cohesive strength, uniform hardness distribution through the coating cross-section.

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