Eutectic Corporation

Mahesh S Patel

Joseph F Quaas

A flame spray powder mix is provided for producing metal coatings on metal substrates, such as ferrous metal substrates, e.g., steel, case iron, among other metal substrates, the powder mix comprising particles of at least one metal silicide, e.g., titaniium disilicide, mixed with a coating metal powder, such as nickel powder. The amount of metal silicide in the powder mix preferably ranging from about 2% to 20% by weight.

Flame spray powder mix

A flame spray powder mix or blend is provided for producing metal coatings on metal substrates, such as ferrous metal substrates, e.g., steel, cast iron, among other metal substrates, the powder mix comprising agglomerates of at least one oxidizable metal, e.g., aluminum, homogeneously mixed or blended with a coating metal powder, such as nickel powder. The coating produced is characterized by a strong bond and also being substantially low in dispersed oxides.

A flame spray powder mix is provided for producing metal coatings on metal substrates, such as ferrous metal substrates, e.g., steel, cast iron, among other metal substrates, the powder mix comprising agglomerates of silicon and at least one metal disilicide, e.g., titanium disilicide, homogeneously mixed or blended with a coating metal powder, such as nickel powder.

A flame spray powder mix is provided for producing metal coatings on metal substrates, such as ferrous metal substrates, e.g. steel, cast iron, among other metal substrates, the powder mix comprising agglomerates of at least one metal silicide, e.g. titanium disilicide, homogeneously mixed with a coating metal powder, such as nickel powder. The mix may additionally contain agglomerates of silicon powder with the coating metal powder making up the major portion of the powder mix.

A copper-aluminum alloy flame spray powder is provided consisting essentially by weight of 0 to about 5% Fe, about 2% to 8% Ni, about 5% to 15% Al, and the balance essentially copper, a coating produced from said powder being characterized by improved as-sprayed hardness in combination with resistance to oxidation and galling.

High hardness copper-aluminum alloy flame spray powder

A flame spray powder mix is provided for producing metal coatings on metal substrates, such as ferrous metal substrates, e.g., steel, case iron, among other metal substrates, the powder mix comprising particles of at least one metal silicide, e.g., titanium disilicide, mixed with a coating metal powder, such as nickel powder. The amount of metal silicide in the powder mix preferably ranging from about 2% to 20% by weight.

A method and coating material are provided for improving the wear and abrasion resistance of a composite nickel-base hard facing alloy applied to metal substrates comprising the system Ni-Cr-Si-B having dispersed therein particles comprising tungsten carbide, the improvement residing in controlling the average particle size of tungsten carbide to below 10 microns, e.g. 0.1 to 10 microns, preferably an average size ranging from about 2 to 8 microns (such as 2 to 6 microns), at an average interparticle spacing of less than 15 microns, and preferably less than 10 microns, e.g. up to 5 microns, the hard facing coating produced being further characterized in that the coating exhibits metallographically a substantially uniform structure at the surface thereof with respect to said tungsten carbide particles.

Wear resistant alloy coating containing tungsten carbide

A method is provided for producing adherent metal coatings on metal substrates, such as ferrous metal substrates, e.g. steel, cast iron and other metal substrates said material comprising a plurality of ingredients physically combined in intimate contact with each other, each of said plurality of ingredients comprising by weight about 3% to 15% aluminum, about 2% to 15% of a refractory metal silicide and the balance essentially a metal selected from the group consisting of nickel-base, cobalt-base, iron-base and copper-base metals.

Metaliferous flame spray material for producing machinable coatings

A metaliferous flame spray material is provided for producing adherent metal coatings on metal substrates, such as ferrous metal substrates, e.g. steel, cast iron and other metal substrates, said material comprising a plurality of ingredients physically combined in intimate contact with each other, each of said plurality of ingredients comprising by weight about 3% to 15% aluminum, about 2% to 15% of a refractory metal silicide and the balance essentially a metal selected from the group consisting of nickel-base, cobalt-base, iron-base and copper-base metals.

A metal spray powder blend is provided characterized by the property of forming a dense coating on a metal substrate comprising a self-fluxing nickel-base alloy powder having intimately associated with the surface thereof by blending an aluminum powder ranging in amount from about 0.5 to 5% by weight, the average size ratio of the nickel-base alloy powder to the aluminum powder being over 5:1, the aluminum powder having an average particle size of less than about 15 microns. A preferred method of spraying the powder is to gravity feed it into the flame of a metal spraying torch.

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Albertson, NY, United States of America

Mahesh S Patel