公开(公告)号：AT301203T

公开(公告)日：2005-08-15

申请号：AT01309195

申请日：2001-10-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ZELESKY MARK F ,  GUPTA DINESH K ,  CETEL ALAN D

IPC: C22C19/05 ,  C23C8/12 ,  C23C28/00 ,  C23C28/04 ,  F01D5/28 ,  C23C14/08

Abstract: A low density superalloy and no bond coat thermal barrier coating system is described. The combination of alloy and TBC system can be used to fabricate light weight turbine blades with reduced blade pull. The present invention concerns nickel base superalloy articles which include additions of yttrium and hafnium that causes them to develop a durable, adherent aluminium oxide coating which will adhere to both the substrate and a ceramic thermal barrier coating thereby eliminating the need for an intermediate bond coat.

公开(公告)号：DE69914409T2

公开(公告)日：2004-12-02

申请号：DE69914409

申请日：1999-06-11

Applicant: UNITED TECHNOLOGIES CORP

Inventor： RISTAU RAYMOND P ,  BOSE SUDHANGSHU ,  CETEL ALAN D

IPC: C23C8/10 ,  C23C14/02 ,  C23G1/00 ,  C23C28/04

Abstract: A method of preparing a superalloy component to receive a ceramic thermal barrier coating without an intermediate bond coat is disclosed. The superalloy substrate is degreased, abrasively cleaned, ultrasonically cleaned, washed in an aqueous bath containing a wetting agent, rinsed at least once, and then heat treated in an atmosphere that is non-reactive with the substrate and alumina at a temperature and time sufficient to form a surface alumina layer which is predominantly alumina.

公开(公告)号：DE69711724T2

公开(公告)日：2002-08-08

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：EP2931458A4

公开(公告)日：2016-07-27

申请号：EP13862454

申请日：2013-12-13

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: B22D19/16

CPC classification number: B22D19/16 ,  B22D27/045 ,  F01D5/147 ,  F05D2230/211

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：SG10201900946WA

公开(公告)日：2019-03-28

申请号：SG10201900946W

申请日：2013-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHAH DILIP M ,  CETEL ALAN D

Abstract: HYBRID TURBINE BLADE FOR IMPROVED ENGINE PERFORMANCE OR ARCHITECTURE A method is provided for casting an article such as a blade having an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The method comprises introducing a molten alloy into a mold; and varying a composition of the introduced alloy during the introduction so as to produce a compositional variation. FIG. 2

公开(公告)号：SG11201503471RA

公开(公告)日：2015-06-29

申请号：SG11201503471R

申请日：2013-12-13

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: B22D19/16

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：SG11201503276PA

公开(公告)日：2015-06-29

申请号：SG11201503276P

申请日：2013-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHAH DILIP M ,  CETEL ALAN D

IPC: B22D19/16 ,  B22D25/00 ,  C22C19/03

Abstract: A method is provided for casting an article such as a blade having an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The method comprises introducing a molten alloy into a mold; and varying a composition of the introduced alloy during the introduction so as to produce a compositional variation.

公开(公告)号：DE60211297D1

公开(公告)日：2006-06-14

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：DE60112382T2

公开(公告)日：2006-06-01

申请号：DE60112382

申请日：2001-10-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ZELESKY MARK F ,  GUPTA DINESH K ,  CETEL ALAN D

IPC: C22C19/05 ,  C23C8/12 ,  C23C14/08 ,  C23C28/00 ,  C23C28/04 ,  F01D5/28

Abstract: A low density superalloy and no bond coat thermal barrier coating system is described. The combination of alloy and TBC system can be used to fabricate light weight turbine blades with reduced blade pull. The present invention concerns nickel base superalloy articles which include additions of yttrium and hafnium that causes them to develop a durable, adherent aluminium oxide coating which will adhere to both the substrate and a ceramic thermal barrier coating thereby eliminating the need for an intermediate bond coat.

公开(公告)号：DE60112382D1

公开(公告)日：2005-09-08

申请号：DE60112382

申请日：2001-10-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ZELESKY MARK F ,  GUPTA DINESH K ,  CETEL ALAN D

IPC: C22C19/05 ,  C23C8/12 ,  C23C28/00 ,  C23C28/04 ,  F01D5/28 ,  C23C14/08

Abstract: A low density superalloy and no bond coat thermal barrier coating system is described. The combination of alloy and TBC system can be used to fabricate light weight turbine blades with reduced blade pull. The present invention concerns nickel base superalloy articles which include additions of yttrium and hafnium that causes them to develop a durable, adherent aluminium oxide coating which will adhere to both the substrate and a ceramic thermal barrier coating thereby eliminating the need for an intermediate bond coat.