1
John A Miller, Daniel F Paulonis, Paul D Genereux, Jeffery W Samuelson, Laurence A Jackman, Frederick P Vaccaro, William M Thomas: Superalloy forging process. United Technologies Corporation, Teledyne, June 9, 1992: US05120373 (24 worldwide citation)

A process for producing a fine grain forged superalloy article having a high yield strength at intermediate temperatures. A preferred starting composition comprises, by weight, 15% Cr, 13.6% Co, 4.1% Mo, 4.6% Ti, 2.2% Al, 0.01% C, 0.007% B, 0.07% Zr, balance Ni. This material is forged at a temperat ...


2
Paul D Genereux, Daniel F Paulonis: Nickel base superalloy articles and method for making. United Technologies Corporation, September 6, 1988: US04769087 (22 worldwide citation)

A process is described for converting a fine grain superalloy casting into a forging having mechanical properties equivalent to those resulting from powder metallurgy processing. Cast material is extruded and forged. A HIP treatment is employed to close porosity.


3
Paul D Genereux, Daniel F Paulonis: Nickle base superalloy articles and method for making. United Technologies Corporation, Charles E Sohl, March 4, 1986: US04574015 (15 worldwide citation)

Methods for increasing the forgeability of cast superalloy materials are described. An extremely overaged microstructure is developed by solutionizing the material and slow cooling in the vicinity of the solvus temperature to cause a precipitation of extremely coarse gamma prime material. Subsequent ...


4
Roy L Athey, John A Miller, William J Gostic, Paul D Genereux, Timothy P Fuesting: Superalloy forging process. United Technologies Corporation, Charles E Sohl, December 2, 1997: US05693159 (6 worldwide citation)

A process for producing a fine grain forged superalloy article having a high yield strength at intermediate temperatures. A preferred starting composition comprises, by weight, 15% Cr, 13.6% Co, 4.1% Mo, 4.6% Ti, 2.2% Al, 0.01% C, 0.007% B, 0.07% Zr, balance Ni. This material is forged at a temperat ...


5
Daniel F Paulonis, Paul D Genereux: Improved forgeability in nickel superalloys. United Technologies, LIU YUANJIN, January 17, 1987: CN85102029 (1 worldwide citation)

An extremely overaged microstructure is developed by solutionizing the material and slow cooling in the vicinity of the solvus temp. to cause a precipitation of extremely coarse gamma prime material. Sub-sequently the material can be isothermally forged.


6
Daniel Benjamin, Steve A McLeod, Daniel R Kapszukiewicz, Larry James Timmons, Paul D Genereux: Tie shaft for gas turbine engine and flow forming method for manufacturing same. UNITED TECHNOLOGIES CORPORATION, Carlson Gaskey & Olds P C, March 22, 2016: US09291057

A method is disclosed for manufacturing a tie shaft for aero or land based gas turbine engine. The method includes flow forming a tie shaft preform to produce a tie shaft. In one example, the tie shaft includes a nickel alloy cylindrical wall having a length to diameter ratio of at least 6:1, wherei ...


7
Dilip M Shah, Herbert A Chin, John Joseph Marcin, Paul L Reynolds, Gabriel L Suciu, Paul D Genereux, Carl E Kelly: High elastic modulus shafts and method of manufacture. UNITED TECHNOLOGIES CORPORATION, Cantor Colburn, January 24, 2017: US09551049

High modulus turbine shafts and high modulus cylindrical articles are described as are the process parameters for producing these shafts and cylindrical articles. The shafts/articles have a high Young's modulus as a result of having high modulus crystal texture along the longitudinal axis of the sha ...