公开(公告)号：US10179377B2

公开(公告)日：2019-01-15

申请号：US14775964

申请日：2013-12-30

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Gabriel L Suciu ,  Gopal Das ,  Ioannis Alvanos ,  Brian D Merry ,  James D Hill ,  Allan R Penda

IPC: B23K26/342 ,  B22F3/105 ,  B22F5/00 ,  C22C1/04 ,  B33Y10/00

Abstract: A process for manufacturing a turbine engine component includes the steps of: providing a powder containing gamma titanium aluminide; and forming a turbine engine component from said powder using a direct metal laser sintering technique.

公开(公告)号：US20180010468A1

公开(公告)日：2018-01-11

申请号：US15204162

申请日：2016-07-07

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Gopal Das

IPC: F01D5/28 ,  C22C14/00

CPC classification number: F01D5/28 ,  C22C14/00 ,  C22F1/183 ,  F05D2300/174

Abstract: An alloy composition including a γ-TiAl alloy with a sustained temperature capability of about 1500 F. An alloy composition including a γ-TiAl alloy with an oxygen level of about 100 wppm and between about 1500-3000 appm carbon. An alloy composition including a γ-TiAl alloy with an alpha stabilizer.

公开(公告)号：US20160273079A1

公开(公告)日：2016-09-22

申请号：US15034063

申请日：2014-10-28

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Gopal Das ,  Luliana Cernatescu ,  Dilip M. Shah

IPC: C22C19/05 ,  B23K9/04 ,  B23K9/23 ,  B23K26/342 ,  B23K26/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C1/02 ,  C22C1/04 ,  B22F3/15 ,  C22F1/10 ,  F01D5/28 ,  F01D25/00 ,  B23K15/00

CPC classification number: C22C19/056 ,  B22F3/1055 ,  B22F3/15 ,  B22F5/009 ,  B22F5/04 ,  B22F2998/10 ,  B23K9/042 ,  B23K9/044 ,  B23K9/046 ,  B23K9/23 ,  B23K15/002 ,  B23K15/0086 ,  B23K15/0093 ,  B23K26/0006 ,  B23K26/342 ,  B23K2101/001 ,  B23K2103/08 ,  B23K2103/26 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C1/023 ,  C22C1/0433 ,  C22C19/05 ,  C22C19/055 ,  C22C19/057 ,  C22C33/0257 ,  C22F1/10 ,  C30B11/007 ,  C30B29/52 ,  F01D5/28 ,  F01D5/286 ,  F01D25/005 ,  F05D2300/175 ,  Y02P10/295

Abstract: The present disclosure provides a method of preparing superalloy metals having a crystallographic texture controlled micro structure by electron beam melting.

Abstract translation: 本公开内容提供了通过电子束熔化制备具有晶体学结构受控微结构的超合金金属的方法。

公开(公告)号：US20160186578A1

公开(公告)日：2016-06-30

申请号：US14868903

申请日：2015-09-29

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Gabriel L. Suciu ,  James D. Hill ,  Gopal Das

IPC: F01D5/28 ,  F01D5/14 ,  F01D5/02

CPC classification number: F01D5/28 ,  F01D5/02 ,  F01D5/147 ,  F05D2230/23 ,  F05D2230/60 ,  F05D2240/24 ,  F05D2300/174 ,  F05D2300/5023 ,  Y02T50/671

Abstract: Components include a low pressure turbine having a plurality of rotor assemblies including a first gamma TiAl intermetallic blade having a maximum operating temperature over 1180° F. (638° C.). At least two of the rotor assemblies include gamma TiAl intermetallic alloy blades. In an embodiment, a method of making a turbine having a plurality of rotor assemblies includes attaching a first gamma TiAl intermetallic alloy blade to an upstream stage of the plurality of rotor assemblies.

Abstract translation: 组件包括具有多个转子组件的低压涡轮机，其包括具有超过1180°F（638℃）的最大工作温度的第一伽马TiAl金属间刀片。 至少两个转子组件包括γTiAl金属间合金刀片。 在一个实施例中，制造具有多个转子组件的涡轮机的方法包括将第一伽马TiAl金属间合金叶片附接到多个转子组件的上游级。

公开(公告)号：US09963977B2

公开(公告)日：2018-05-08

申请号：US14868903

申请日：2015-09-29

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Gabriel L. Suciu ,  James D. Hill ,  Gopal Das

IPC: F01D5/28 ,  F01D5/02 ,  F01D5/14

CPC classification number: F01D5/28 ,  F01D5/02 ,  F01D5/147 ,  F05D2230/23 ,  F05D2230/60 ,  F05D2240/24 ,  F05D2300/174 ,  F05D2300/5023 ,  Y02T50/671

Abstract: Components include a low pressure turbine having a plurality of rotor assemblies including a first gamma TiAl intermetallic blade having a maximum operating temperature over 1180° F. (638° C.). At least two of the rotor assemblies include gamma TiAl intermetallic alloy blades. In an embodiment, a method of making a turbine having a plurality of rotor assemblies includes attaching a first gamma TiAl intermetallic alloy blade to an upstream stage of the plurality of rotor assemblies.

公开(公告)号：US20180010213A1

公开(公告)日：2018-01-11

申请号：US15204092

申请日：2016-07-07

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Gopal Das

IPC: C22C14/00 ,  C22C1/00

CPC classification number: C22C14/00 ,  C22C1/00 ,  C22F1/183

Abstract: A process to increase ductility includes utilizing γ-TiAl alloy as a base alloy and reducing at least one interstitial of the base alloy to create an alloy compositions with extremely low interstitials (Eli).

公开(公告)号：US10294556B2

公开(公告)日：2019-05-21

申请号：US15200038

申请日：2016-07-01

Applicant: United Technologies Corporation

Inventor： Gopal Das

IPC: C22F1/10 ,  B33Y10/00 ,  B33Y40/00 ,  B22F3/105 ,  B22F3/15 ,  B22F3/24 ,  C22C19/05

Abstract: A method of metallurgical processing includes, providing a workpiece that has been formed by additive manufacturing of a nickel-chromium based superalloy. The workpiece has an internal porosity and a microstructure with a columnar grain structure and delta phase. The workpiece is then hot isostatically pressed to reduce the internal porosity and to at least partially retain the columnar grain structure and the delta phase. The workpiece is then heat treated to at least partially retain the columnar grain structure and the delta phase.

公开(公告)号：US20180002795A1

公开(公告)日：2018-01-04

申请号：US15200038

申请日：2016-07-01

Applicant: United Technologies Corporation

Inventor： Gopal Das

IPC: C22F1/10 ,  B33Y40/00 ,  B33Y10/00 ,  B22F3/105 ,  B22F3/15 ,  B22F3/24 ,  C22C19/05

CPC classification number: C22F1/10 ,  B22F3/1055 ,  B22F3/15 ,  B22F3/24 ,  B33Y10/00 ,  B33Y40/00 ,  C22C19/055 ,  C22C19/056

Abstract: A method of metallurgical processing includes, providing a workpiece that has been formed by additive manufacturing of a nickel-chromium based superalloy. The workpiece has an internal porosity and a microstructure with a columnar grain structure and delta phase. The workpiece is then hot isostatically pressed to reduce the internal porosity and to at least partially retain the columnar grain structure and the delta phase. The workpiece is then heat treated to at least partially retain the columnar grain structure and the delta phase.

公开(公告)号：US20150377073A1

公开(公告)日：2015-12-31

申请号：US14769801

申请日：2014-02-18

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Gabriel L. Suciu ,  Gopal Das ,  Ioannis Alvanos ,  Brian D. Merry

IPC: F01D25/30 ,  F02C3/04 ,  B23K31/02 ,  B21K7/12

CPC classification number: F01D25/30 ,  B21K7/12 ,  B23K31/02 ,  F01D25/162 ,  F02C3/04 ,  F02C7/20 ,  F02K1/78 ,  F05D2220/30 ,  F05D2230/236 ,  F05D2230/25 ,  F05D2230/60 ,  F05D2300/174 ,  Y02T50/672

Abstract: A turbine exhaust case for a gas turbine engine includes a multiple of CMC turbine exhaust case struts between a CMC core nacelle aft portion and a CMC tail cone.

Abstract translation: 用于燃气涡轮发动机的涡轮机排气箱包括在CMC核心机舱后部和CMC尾锥之间的多个CMC涡轮机排气外壳支柱。