General Electric Company

Timothy Neal Pletcher

Srikanth Chandrudu Kottilingam

Yan Cui

Brian Lee Tollison

Richard Ryan Pilson

A hybrid preform component including a plurality of elongated metallic cores and a coating paste is provided. The coating paste envelops the plurality of elongated metallic cores. The coating paste includes a first material having a first melting point, a second material having a second melting point, and a binder. A method for treating a component is also provided. The method includes the step of mixing a second material, a first material, and a binder to make coating paste. The method further includes the step of coating the plurality of cores using the coating paste to form a coated rod assembly. The method further includes the step of compressing the coated rod assembly to envelop the coating paste to the plurality of cores and form a preform component having a near net shape. The method further includes the step of sintering the preform component to form a pre-sintered preform.

Hybrid component with multiple cores and method for treating a component

A hybrid article is disclosed including a coating disposed on and circumscribing the lateral surface of a core having a core material. The coating includes about 35% to about 95% of a first metallic material having a first melting point, and about 5% to about 65% of a second metallic material having a second melting point lower than the first melting point. The coating is sinter-bonded to the core. A method for forming the hybrid article is disclosed including disposing the core in a die, introducing a slurry having the metallic materials into a gap between the lateral surface and the die, and sintering the slurry, forming the coating. A method for closing an aperture of an article is disclosed including inserting the hybrid article into the aperture, and brazing the hybrid article to the article, welding the aperture with the hybrid article serving as weld filler, or both.

Sinter-bonded hybrid article, method for forming hybrid article, and method for closing aperture

A hybrid article is disclosed including a coating circumscribing the lateral surface of a hollow core having a core material and a channel disposed within the lateral surface. The coating includes about 35% to about 95% of a first metallic material, and about 5% to about 65% of a second metallic material with a lower melting point than the first metallic material. A method for forming the hybrid article is disclosed including disposing the hollow core in a die, forming a gap between the lateral surface and the die, introducing a slurry having the metallic materials into the gap, and sintering the slurry, forming the coating. A method for closing an aperture of an article is disclosed including inserting the hybrid article into the aperture, and brazing the hybrid article to the article, welding the aperture with the hybrid article serving as weld filler, or a combination thereof.

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Greenwood, SC, United States of America

Timothy Neal Pletcher