Microstructure, wear, and oxidation resistance of nanostructured carbide-strengthened cobalt-based composite coatings on Invar alloys by laser cladding

To strengthen Invar alloy, nanostructured carbide-strengthened cobalt-based cladding layers were fabricated on an Invar alloy by laser cladding. The cladding layers contained cubic γ-(Fe, Ni) or Co-based solid solution and hard carbides such as W2C, Cr3C2/V8C7, CoCx, and niobium carbide at the grain...

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