公开(公告)号：DE69711724D1

公开(公告)日：2002-05-08

申请号：DE69711724

申请日：1997-12-11

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CETEL ALAN D ,  DUHL DAVID N

IPC: F01D5/28 ,  C22C19/05 ,  C30B11/00 ,  C30B29/52

Abstract: A superalloy composition and single crystal articles of the composition are disclosed. The broad range, in weight percent, is 3.0-20.0% Co, 5.0-10.0% W, 5.0-7.0% Al, 0.4-2.9% Cr, 4.0-8.0% Ta, 0-1.0% V, 0-8.5% Re, 0-1.5% Ti, 0-3.0% Hf, 0-4.0% Mo, 0-2.0% Nb, 0-10.0% of one or more elements selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, 0-1.0 of one or more elements selected from the group consisting of Y, La, Sc, Ac, lanthanides or actinides series of elements, balance essentially Ni. An equation is presented to select the most useful specific compositions from within this range.

公开(公告)号：DE3686525D1

公开(公告)日：1992-10-01

申请号：DE3686525

申请日：1986-03-06

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DUHL DAVID N ,  CETEL ALAN D

IPC: C22C19/05 ,  C30B11/00 ,  C30B29/52

Abstract: A superalloy composition and single crystal articles of the composition are described. The broad range is 3-12% Cr, 0-3% Mo,3-10% W, 0-5% Re, 6-12% Ta, 4-7% Al, 0-15% Co, 0-0.045% C,0-0.02% B, 0-0. 1 % Zr, 0-0.8% Hf, 0-2% Nb, 0-1% V, 0-0.7% Ti, 0-10% (Ru+Rh+Pd+Os+Ir+Pt), balance essentially Ni. An equation is presented to select the most useful specific compositions from within this range. An exemplary preferred composition is 5.0% Cr, 10.0% Co, 2.0% Mo, 6.0% W, 3,1% Re, 5.6% Al, 9.0% Ta, 0.1% Hf, balance essentially Ni.

公开(公告)号：SG10201610144XA

公开(公告)日：2017-01-27

申请号：SG10201610144X

申请日：2013-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BULLIED STEVEN J ,  SHAH DILIP M ,  CETEL ALAN D ,  MARCIN JOHN J

Abstract: An alloy part is cast in a mold (280) having a part-forming cavity (292, 294, 296). The method comprises pouring a first alloy into the mold. The pouring causes: a surface (550) of the first alloy in the part-forming cavity to raise relative to the part-forming cavity; a branch flow of the poured first alloy to pass upwardly through a first portion (304) of a passageway; and the branch flow to pass downwardly through a second portion (310), of the passageway; solidifying some of the first alloy in the passageway to block the passageway while at least some of the first alloy in the part-forming cavity remains molten. A second alloy is poured into the mold atop the first alloy and solidified.

公开(公告)号：DE602007009493D1

公开(公告)日：2010-11-11

申请号：DE602007009493

申请日：2007-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SEETHARAMAN VENKATARAMA K ,  CETEL ALAN D

IPC: C22C19/05 ,  C22F1/00 ,  C30B11/00 ,  F01D5/00

公开(公告)号：SG132583A1

公开(公告)日：2007-06-28

申请号：SG2006063440

申请日：2006-09-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CETEL ALAN D ,  RIEWE CURTIS HEATH ,  BRAITHWAITE DWAYNE A

Abstract: A process for forming a coated substrate comprises providing a nickel base alloy substrate, depositing a chromium coating onto the nickel base alloy substrate and diffusing chromium from said coating into the substrate, applying a MCrAlY coating onto the nickel base alloy substrate and heat treating the substrate with the deposited chromium and the MCrAlY coating so that chromium diffuses into an outer region of the substrate. Further, in accordance with the present invention, a strip process for removing a coating from a substrate broadly comprises the steps of providing a nickel base alloy substrate having chromium diffused into an outer region and a MCrAlY coating deposited over the substrate with the diffused chromium and removing the MCrAlY coating by immersing the nickel base alloy substrate in an acid solution containing a sulfuric acid - hydrochloric acid mixture in water.

公开(公告)号：DE3686525T2

公开(公告)日：1993-01-21

申请号：DE3686525

申请日：1986-03-06

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DUHL DAVID N ,  CETEL ALAN D

IPC: C22C19/05 ,  C30B11/00 ,  C30B29/52

Abstract: A superalloy composition and single crystal articles of the composition are described. The broad range is 3-12% Cr, 0-3% Mo,3-10% W, 0-5% Re, 6-12% Ta, 4-7% Al, 0-15% Co, 0-0.045% C,0-0.02% B, 0-0. 1 % Zr, 0-0.8% Hf, 0-2% Nb, 0-1% V, 0-0.7% Ti, 0-10% (Ru+Rh+Pd+Os+Ir+Pt), balance essentially Ni. An equation is presented to select the most useful specific compositions from within this range. An exemplary preferred composition is 5.0% Cr, 10.0% Co, 2.0% Mo, 6.0% W, 3,1% Re, 5.6% Al, 9.0% Ta, 0.1% Hf, balance essentially Ni.

公开(公告)号：DE60331203D1

公开(公告)日：2010-03-25

申请号：DE60331203

申请日：2003-03-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BOSE SUDHANGSHU ,  CETEL ALAN D ,  DRAGHI PETER J ,  PIETRUSKA NORMAN

IPC: C23C4/02 ,  F01D5/14 ,  B23P6/00 ,  C23C10/02 ,  C23G1/20 ,  F01D5/00 ,  F01D5/28 ,  F01D25/00 ,  F02C7/00

Abstract: The present invention relates to a method for repairing turbine engine components, such as vanes and blades, which have airfoils. The method broadly comprises removing oxidation debris from portions of the component by blending areas exhibiting thermal barrier coating spall and/or oxidation damage, removing a ceramic insulating layer from the component, and blending surfaces of the component where nicks, dents, and/or cracks are located. If the component has a depleted aluminum zone, the depleted zone is either removed or replenished. Further, a tip portion of the component, if damaged, is restored and tip abrasives are applied to restore the component's cutting ability. Thereafter, a ceramic coating is applied to the component.

公开(公告)号：AT457368T

公开(公告)日：2010-02-15

申请号：AT03251391

申请日：2003-03-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BOSE SUDHANGSHU ,  CETEL ALAN D ,  DRAGHI PETER J ,  PIETRUSKA NORMAN

IPC: C23C4/02 ,  F01D5/14 ,  B23P6/00 ,  C23C10/02 ,  C23G1/20 ,  F01D5/00 ,  F01D5/28 ,  F01D25/00 ,  F02C7/00

Abstract: The present invention relates to a method for repairing turbine engine components, such as vanes and blades, which have airfoils. The method broadly comprises removing oxidation debris from portions of the component by blending areas exhibiting thermal barrier coating spall and/or oxidation damage, removing a ceramic insulating layer from the component, and blending surfaces of the component where nicks, dents, and/or cracks are located. If the component has a depleted aluminum zone, the depleted zone is either removed or replenished. Further, a tip portion of the component, if damaged, is restored and tip abrasives are applied to restore the component's cutting ability. Thereafter, a ceramic coating is applied to the component.

公开(公告)号：DE60211297T2

公开(公告)日：2007-04-26

申请号：DE60211297

申请日：2002-12-18

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CETEL ALAN D ,  SHAH DILIP M

IPC: C22C19/03 ,  F02C7/00 ,  C22C19/05 ,  C22F1/10

Abstract: 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 essentially nickel, and include no intentional additions of hafnium or zirconium, and also have a small amounts of tantalum carbide. The resultant articles have good hot corrosion resistance and superior oxidation resistance and creep properties. The articles are preferably columnar grain, but may also be single crystal.

公开(公告)号：ES2261604T3

公开(公告)日：2006-11-16

申请号：ES02258710

申请日：2002-12-18

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CETEL ALAN D ,  SHAH DILIP M

IPC: F02C7/00 ,  C22C19/05 ,  C22C19/03 ,  C22F1/10

Abstract: Un artículo solidificado direccionalmente que comprende una superaleación base níquel resistente a la corrosión y a la oxidación, de alta resistencia que comprende una matriz y de aproximadamente 0, 4 a 1, 5 % en volumen de una fase basada en carburo de tántalo, consistiendo la aleación, en tanto por ciento en peso: 11, 94 Cr, 4, 03 Ti, 1, 84 Mo, 3, 75 W, 5, 15 Ta, 3, 55 Al, 8, 93 Co, 0, 008 B, 0, 02 Zr, 0, 06 C y 0, 01 Hf, y el resto níquel.