Scoperta, Inc.

Oerlikon Metco (US) Inc.

Oerlikon Metco Inc.

Jonathon Bracci

Justin Lee Cheney

John Hamilton Madok

James Vecchio

Kevin R Williams

Cameron Eibl

Petr Fiala

Adolfo Castells

Shengjun Zhang

Jorg Spatzier

Arkadi Zikin

Disclosed herein are embodiments of nickel-based alloys. The nickel-based alloys can be used as feedstock for PTA and laser cladding hardfacing processes, and can be manufactured into cored wires used to form hardfacing layers. The nickel-based alloys can have high corrosion resistance and large numbers of hard phases such as isolated hypereutectic hard phases.

Corrosion and wear resistant nickel based alloys

A method of manufacturing a device includes thermally spraying tungsten carbine in feedstock that does not include Cobalt but that includes Nickel, Copper, or a Nickel-Copper alloy, the method improves the base coating toughness, anticorrosion, and antifouling properties for high load application in sea water and brackish water environments. Additionally, a Cobalt-free material lowers material costs and reduces the global demand of Cobalt. Providing a topcoat of a Silicon-doped DLC significantly reduces the topcoat brittleness of common DLC failures such as 'egg shell' in high stress applications. Thus, high hardness, low friction applications may be tailored in high stress applications.

High-temperature low-friction cobalt-free coating system for gate valves, ball valves, stems, and seats

Disclosed herein are embodiments of hardfacing alloys which can be resistant to hot tearing and cracking. In doing so, the hardfacing alloys can meet certain thermodynamic, microstructural, and performance criteria. For example, embodiments of the alloy have a martensitic matrix embedded with isolated carbides and/or borides. Further, in some embodiments the hardfacing alloys can also have high levels of macro-hardness.

Hardfacing alloys resistant to hot tearing and cracking

Disclosed herein are embodiments of alloys which can be used for hardfacing applications, and hardfacing layers themselves. In particular, embodiments of the alloys can have high hardness as well as impact resistance. These advantageous properties can occur due to the inclusion of hardfacing particles, as well as other compositional, microstructural, thermodynamic, and performance criteria.

Impact resistant hardfacing and alloys and methods for making the same

Disclosed herein are embodiments of iron-based corrosion resistant hardfacing alloys. The alloys can be designed through the use of different compositional, thermodynamic, microstructural, and performance criteria. In some embodiments, chromium content in the alloy can be increased while avoiding the formation of different hard chromium carbides, thereby increasing the corrosion resistance of the alloy.

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Carlsbad, CA, United States of America

Jonathon Bracci