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US 9,309,583 B2Granted
Erosion resistant hard composite materials
AssigneeHalliburton Energy Services, Inc.
InventorGarrett T. Olsen
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Abstract
A hard composite composition comprises a binder; and a polymodal blend of matrix powder. In an embodiment, the polymodal blend of matrix powder has at least one local maxima at a particle size of 30 μm or less, at least one local maxima at a particle size of 200 μm or more, and at least one local minima between a particle size of about 30 μm to about 200 μm that has a value that is less than the local maxima at a particle size of 30 μm or less.
Claims21
A method of hardfacing a substrate comprising;
- providing the substrate;
- and
- applying a hard composite material to a surface of the substrate;
- wherein the hard composite material comprises:
- a binder;
- and
- a polymodal blend of matrix powder, wherein the polymodal blend of matrix powder comprises at least three local maxima that include at least a first local maxima at a particle size of 30 μm or less, a second local maxima between a particle size of 30 μm and 200 μm, a third local maxima at a particle size of 200 μm or more, and the polymodal blend of matrix powder further comprising a first local minima between the first local maxima and the second local maxima and a second local minima between the second local maxima and the third local maxima, wherein the second local maxima has a value that is less than the first local maxima.
4 more elements
A method of hardfacing a substrate comprising;
- providing the substrate;
- and using a welding rod and/or a welding rope comprising a hard composite material to apply the hard composite material to a surface of the substrate;
- wherein the hard composite material comprises:
- a binder;
- and a polymodal blend of matrix powder, wherein the polymodal blend of matrix powder comprises at least three local maxima that include at least a first local maxima at a particle size of 30 μm or less, a second local maxima between a particle size of 30 μm and 200 μm, a third local maxima at a particle size of 200 μm or more, and the polymodal blend of matrix powder further comprising a first local minima between the first local maxima and the second local maxima and a second local minima between the second local maxima and the third local maxima, and wherein the second local maxima has a value that is less than the first local maxima.
2 more elements
Dependencies are inferred from the claim text.