Method of manufacturing a metallic component or substrate with bonded coating
AssigneeMTU Motoren-und Turbinen-Union Munchen GmbH
InventorsWilhelm Hoffmuller, Josef Eichner, Robert Sigl, Thomas Uihlein
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Abstract
A metallic alloy part having a bonded coating that includes dispersed hard-material particles embedded in a metal matrix, composed of a eutectic solder whose alloy elements include at least the base metal of the metallic alloy part. The solder is formed by fusion bonding on the metallic alloy part, a precoating composed of sequential layers of the elemental components of the solder applied on the metal part or on the hard-material particles. The composition and disposition of the various layers are graduated such that the melting points of the elemental solder components increase towards the outermost layer.
Claims20
A method of manufacturing a metal part having a bonded coating on said part, said method comprising:
- providing, on a surface of a metal alloy part, metal compound particles and a succession of layers of elemental component of a eutectic solder in which the elemental component of one of said layers is the same as a metal element of said metal alloy part, said layers being arranged so that melting points of the elemental components in said layers increase successively towards the outermost of the layers,
- melting and fusing said elemental components in said layers to form a metal matrix of said eutectic solder which at least partially envelops said particles and bonds the particles and said metal alloy part.
Dependencies are inferred from the claim text.