Raytheon Technologies Corporation

Rtx Corporation

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United Technologies Corporation

Max A Kaplan

Mario P Bochiechio

Eli N Ross

Enrique E Montero

Paul D Bennett

Ashwin Sreekant Raghavan

Stephen D Rittenburg

David Ulrich Furrer

Xuan Liu

Kenneth A Frisk

Michael A Czywczynski

Ashwin Raghavan

Michael A Crywczynski

A method for heat treating a superalloy component includes heating a superalloy component to a first temperature, cooling the superalloy from the first temperature to a second temperature at a first cooling rate in a furnace, and cooling the superalloy component from the second temperature to a final temperature at a second cooling rate. The second cooling rate is higher than the first cooling rate.

Method for heat treating components

A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.

Heat treatment and stress relief for solid-state welded nickel alloys

An embodiment of a superalloy composition includes 1.5 to 4.5 wt % Al; 0.005 to 0.06 wt % B; 0.02 to 0.07 wt % C; 21.0 to 26.0 wt % Co; 11.5 to 16.0 wt % Cr; 8.50 to 19.0 wt % Ta; 0.005-0.10 wt % Zr; and balance Ni and incidental impurities.

Composition and method for enhanced precipitation hardened superalloys

A method for welding a first powder metallurgical (PM) part to a second powder metallurgical (PM) part includes: working a first face of the first PM part; working a first face of the second PM part; and friction welding the first face of the first part to the first face of the second part.

Solid-state welding of coarse grain powder metallurgy nickel-based superalloys

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West Hartford, CT, United States of America

Max A Kaplan