公开(公告)号：US09039960B2

公开(公告)日：2015-05-26

申请号：US13745506

申请日：2013-01-18

Applicant: General Electric Company

Inventor： Richard Didomizio ,  Matthew Joseph Alinger ,  Raymond Joseph Stonitsch ,  Samuel Vinod Thamboo

IPC: B22F3/15 ,  B22F5/00 ,  C22C33/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/28 ,  F01D5/28 ,  B22F3/24

CPC classification number: B22F5/00 ,  B22F3/15 ,  B22F3/24 ,  B22F2003/247 ,  B22F2998/10 ,  C22C33/0285 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/28 ,  F01D5/286 ,  F05D2230/00 ,  F05D2230/90 ,  F05D2300/502 ,  Y02T50/67 ,  Y02T50/671 ,  B22F3/17 ,  B22F9/082

Abstract: A formed article comprising a nanostructured ferritic alloy is provided. Advantageously, the article is not formed via extrusion, and thus, cost savings are provided. Methods are also provided for forming the article, and the articles so produced, exhibit sufficient continuous cycle fatigue crack growth resistance and hold time fatigue crack growth resistance to be utilized as turbomachinery components, and in particular, large, hot section components of a gas or steam turbine engines. In other embodiments, a turbomachinery component comprising an NFA is provided, and in some such embodiments, the turbomachinery component may be extruded.

Abstract translation: 提供了包含纳米结构的铁素体合金的成型制品。 有利地，制品不是通过挤出成型，因此提供了成本节约。 还提供了用于形成制品的方法，并且这样制造的制品表现出足够的连续循环疲劳裂纹扩展阻力和保持时间疲劳裂纹扩展性，以用作涡轮机械部件，特别是气体的大的热部件 汽轮机。 在其它实施例中，提供了包括NFA的涡轮机械部件，并且在一些这样的实施例中，可以挤压涡轮机械部件。

公开(公告)号：US20130129556A1

公开(公告)日：2013-05-23

申请号：US13745506

申请日：2013-01-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Richard Didomizio ,  Matthew Joseph Alinger ,  Raymond Joseph Stonitsch ,  Samuel Vinod Thamboo

IPC: B22F5/00 ,  B22F3/15 ,  B22F3/24

CPC classification number: B22F5/00 ,  B22F3/15 ,  B22F3/24 ,  B22F2003/247 ,  B22F2998/10 ,  C22C33/0285 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/28 ,  F01D5/286 ,  F05D2230/00 ,  F05D2230/90 ,  F05D2300/502 ,  Y02T50/67 ,  Y02T50/671 ,  B22F3/17 ,  B22F9/082

Abstract: A formed article comprising a nanostructured ferritic alloy is provided. Advantageously, the article is not formed via extrusion, and thus, cost savings are provided. Methods are also provided for forming the article, and the articles so produced, exhibit sufficient continuous cycle fatigue crack growth resistance and hold time fatigue crack growth resistance to be utilized as turbomachinery components, and in particular, large, hot section components of a gas or steam turbine engines. In other embodiments, a turbomachinery component comprising an NFA is provided, and in some such embodiments, the turbomachinery component may be extruded.

Abstract translation: 提供了包含纳米结构的铁素体合金的成型制品。 有利地，制品不是通过挤出成型，因此提供了成本节约。 还提供了用于形成制品的方法，并且这样制造的制品表现出足够的连续循环疲劳裂纹扩展阻力和保持时间疲劳裂纹扩展性，以用作涡轮机械部件，特别是气体的大的热部件 汽轮机。 在其它实施例中，提供了包括NFA的涡轮机械部件，并且在一些这样的实施例中，可以挤压涡轮机械部件。

公开(公告)号：US09322090B2

公开(公告)日：2016-04-26

申请号：US14171901

申请日：2014-02-04

Applicant: General Electric Company

Inventor： George Albert Goller ,  Raymond Joseph Stonitsch ,  Richard DiDomizio

IPC: C22F1/10 ,  C22C38/00 ,  C22C19/03 ,  C22C19/05 ,  B22F3/15 ,  B21J1/06 ,  B21K1/32 ,  B22F3/17 ,  F01D5/02 ,  F01D25/00

CPC classification number: C22F1/10 ,  B21J1/06 ,  B21K1/32 ,  B22F3/15 ,  B22F3/17 ,  B22F2998/00 ,  B22F2998/10 ,  C22C19/05 ,  C22C19/055 ,  C22C19/056 ,  F01D5/02 ,  F01D25/005 ,  F05D2220/32 ,  F05D2230/22 ,  F05D2230/411 ,  F05D2230/42 ,  B22F2003/248 ,  C22C1/0433

Abstract: Components and methods of processing such components from precipitation-strengthened alloys so that the components exhibit desirable grain sizes following a supersolvus heat treatment. The method includes consolidating a powder of the alloy to form a billet having an average grain size. The billet is then forged at a temperature below the solvus temperature to form a forging having an average grain size of not coarser than the grain size of the billet. The billet is then forged at a total strain of at least 5%, after which at least a portion of the forging is heat treated at a temperature below the solvus temperature to pin grains within the portion. The entire forging can then be heat treated at a temperature above the solvus temperature of the alloy without coarsening the grains in the portion.

Abstract translation: 通过沉淀强化合金处理这些组分的组分和方法，使得组分在超声热处理后表现出期望的晶粒尺寸。 该方法包括固化合金粉末以形成具有平均晶粒尺寸的坯料。 然后将坯料在低于溶剂温度的温度下锻造，以形成平均晶粒尺寸不比坯料的晶粒尺寸更粗的锻造。 然后以至少5％的总应变锻造坯料，然后将至少一部分锻件在低于solvus温度的温度下热处理以在该部分内的针晶粒。 然后可以在高于合金的固溶温度的温度下对整个锻造进行热处理，而不使该部分中的晶粒粗大化。

公开(公告)号：US20150284832A1

公开(公告)日：2015-10-08

申请号：US14171901

申请日：2014-02-04

Applicant: General Electric Company

Inventor： George Albert Goller ,  Raymond Joseph Stonitsch ,  Richard DiDomizio

IPC: C22F1/10 ,  B22F3/17 ,  F01D25/00 ,  C22C19/05 ,  F01D5/02 ,  B22F3/15 ,  B21K1/32

CPC classification number: C22F1/10 ,  B21J1/06 ,  B21K1/32 ,  B22F3/15 ,  B22F3/17 ,  B22F2998/00 ,  B22F2998/10 ,  C22C19/05 ,  C22C19/055 ,  C22C19/056 ,  F01D5/02 ,  F01D25/005 ,  F05D2220/32 ,  F05D2230/22 ,  F05D2230/411 ,  F05D2230/42 ,  B22F2003/248 ,  C22C1/0433

Abstract: Components and methods of processing such components from precipitation-strengthened alloys so that the components exhibit desirable grain sizes following a supersolvus heat treatment. The method includes consolidating a powder of the alloy to form a billet having an average grain size. The billet is then forged at a temperature below the solvus temperature to form a forging having an average grain size of not coarser than the grain size of the billet. The billet is then forged at a total strain of at least 5%, after which at least a portion of the forging is heat treated at a temperature below the solvus temperature to pin grains within the portion. The entire forging can then be heat treated at a temperature above the solvus temperature of the alloy without coarsening the grains in the portion.

Abstract translation: 通过沉淀强化合金处理这些组分的组分和方法，使得组分在超声热处理后表现出期望的晶粒尺寸。 该方法包括固化合金粉末以形成具有平均晶粒尺寸的坯料。 然后将坯料在低于溶剂温度的温度下锻造，以形成平均晶粒尺寸不比坯料的晶粒尺寸更粗的锻造。 然后以至少5％的总应变锻造坯料，然后将至少一部分锻件在低于solvus温度的温度下热处理以在该部分内的针晶粒。 然后可以在高于合金的固溶温度的温度下对整个锻造进行热处理，而不使该部分中的晶粒粗大化。

公开(公告)号：US08991611B2

公开(公告)日：2015-03-31

申请号：US13804991

申请日：2013-03-14

Applicant: General Electric Company

Inventor： Raymond Joseph Stonitsch ,  George Albert Goller

IPC: B03C1/00 ,  B03C1/02 ,  B03C1/10 ,  B03C1/247

CPC classification number: B03C1/02 ,  B03C1/005 ,  B03C1/10 ,  B03C1/247 ,  B03C2201/20 ,  B03C2201/32

Abstract: A method of separating a powder mixture is disclosed. A first magnetic field is applied to the powder mixture which may contains a non-magnetic metal powder and a contaminant powder. A field strength of the first magnetic field magnetizes the non-magnetic metal powder and leaves the contaminant powder non-magnetized. A second magnetic field is applied to the powder mixture to separate the magnetized metal powder from the non-magnetized contaminant powder.

Abstract translation: 公开了一种分离粉末混合物的方法。 对可能含有非磁性金属粉末和污染粉末的粉末混合物施加第一磁场。 第一磁场的场强使非磁性金属粉末磁化，并使未被磁化的污染物粉末离开。 将第二磁场施加到粉末混合物以将磁化的金属粉末与非磁化的污染物粉末分离。

公开(公告)号：US20140262967A1

公开(公告)日：2014-09-18

申请号：US13804991

申请日：2013-03-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Raymond Joseph Stonitsch ,  George Albert Goller

IPC: B03C1/02

CPC classification number: B03C1/02 ,  B03C1/005 ,  B03C1/10 ,  B03C1/247 ,  B03C2201/20 ,  B03C2201/32

Abstract: A method of separating a powder mixture is disclosed. A first magnetic field is applied to the powder mixture which may contains a non-magnetic metal powder and a contaminant powder. A field strength of the first magnetic field magnetizes the non-magnetic metal powder and leaves the contaminant powder non-magnetized. A second magnetic field is applied to the powder mixture to separate the magnetized metal powder from the non-magnetized contaminant powder.

Abstract translation: 公开了一种分离粉末混合物的方法。 对可能含有非磁性金属粉末和污染粉末的粉末混合物施加第一磁场。 第一磁场的场强使非磁性金属粉末磁化，并使未被磁化的污染物粉末离开。 将第二磁场施加到粉末混合物以将磁化的金属粉末与非磁化的污染物粉末分离。