31
Dilip M Shah, Alan D Cetel, Alan W Stoner, William P Allen: Carlson Gaskey & Olds PC, September 8, 2005: US20050196268-A1

A high modulus component, such as an aircraft engine turbine blade, is formed from a base metal that has a high modulus crystallographic orientation that is aligned with the primary, i.e. radial, direction of the turbine blade. The base metal is Ni, Fe, Ti, Co, Al, Nb, or Mo based alloy. Alignment o ...


32
Alan D Cetel: Oxidation resistant superalloy and article. Pratt & Whitney, December 8, 2005: US20050271886-A1

An oxidation resistant, nickel base superalloy is described. The combination of alloy and a thermal barrier coating can be used to fabricate turbine components with good high temperature strength and good oxidation resistance, while maintaining other relevant properties.


33
Kevin W Schlichting, Alan D Cetel, Stephen D Murray, John J Marcin: Single crystal combustor panels having controlled crystallographic orientation. Bachman & Lapointe PC, October 13, 2005: US20050227106-A1

An article has a characteristic thermal-mechanical stress principal direction. The article has a single crystal substrate having a lowest modulus direction within a target alignment with the principal direction.


34
Alan D Cetel: High strength hot corrosion and oxidation resistant, directionally solidified nickel base superalloy and articles. Pratt & Whitney, Legal Department Patent Group, June 19, 2003: US20030111138-A1

Corrosion and oxidation resistant, high strength, directionally solidified superalloy alloys and articles are described. The articles have a nominal composition in weight percent of about 12% Cr, 9% Co, 1.9% Mo, 3.8% W, 5% Ta, 3.6% Al, 4.1% Ti, 0.015% B, 0.1% C, up to about 0.02 Zr, balance essentia ...


35
Alan D Cetel, Shiela R Woodard, Dwayne A Braithwaite, Joseph J Parkos JR: Process for preventing the formation of secondary reaction zone in susceptible articles, and articles manufactured using same. United Technologies Corporation, Bachman & Lapointe PC, October 14, 2010: US20100260613-A1

A process for reducing secondary reaction zone formation articles includes the steps of non-selective removing an external surface of an as-cast article free of coating to form an as-cast article having a surface substantially free of residual surface stress; and applying a coating material upon the ...


36
Alan D Cetel, Dilip M Shah: Low sulfur nickel base substrate alloy and overlay coating system. United Technologies Corporation, June 16, 2011: US20110143164-A1

A coated article having an improved coating oxidation life includes a superalloy substrate material having a composition which includes sulfur, herein the sulfur is present in an amount less than 1 ppm; and an overlay coating formed over a surface of the substrate material.


37
Alan D Cetel, Dilip M Shah: Lower cost high strength single crystal superalloys with reduced re and ru content. United Technologies Corporation, Bachman & Lapointe PC, June 3, 2010: US20100135846-A1

A first embodiment of a nickel based alloy consists essentially of from 3.0 to 5.2 wt % chromium, from 1.5 to 3.0 wt % molybdenum, from 6.0 to 12.5 wt % tungsten, from 5.0 to 11 wt % tantalum, from 5.5 to 6.5 wt % aluminum, from 11 to 14 wt % cobalt, from 0.001 to 1.75 wt % rhenium, from 0.2 to 0.6 ...


38
Venkatarama K Seetharaman, Alan D Cetel: Moderate density, low density, and extremely low density single crystal alloys for high an2 applications. United Technologies Corporation, Bachman & Lapointe PC, April 8, 2010: US20100086411-A1

A single crystal alloy for high AN2 applications has a composition consisting essentially of from 4.0 to 10 wt % chromium, from 1.0 to 2.5 wt % molybdenum, up to 5.0 wt % tungsten, from 3.0 to 8.0 wt % tantalum, from 5.5 to 6.25 wt % aluminum, from 6.0 to 17 wt % cobalt, up to 0.2 wt % hafnium, from ...


39
Dilip M Shah, Alan D Cetel, Alan W Stoner, William P Allen: Carlson Gaskey & Olds PC, December 3, 2009: US20090297359-A1

A high modulus component, such as an aircraft engine turbine blade, is formed from a base metal that has a high modulus crystallographic orientation that is aligned with the primary, i.e. radial, direction of the turbine blade. The base metal is Ni, Fe, Ti, Co, Al, Nb, or Mo based alloy. Alignment o ...


40
Kirk C Newton, Alan D Cetel, Mario P Bochiechio, James T Beals, John Joseph Marcin: Casting system for investment casting process. Carlson Gaskey & Olds Pratt & Whitney, January 7, 2010: US20100000698-A1

A casting system includes a core and a shell positioned relative to the core. A barrier coating is applied on at least one of the core and the shell.