公开(公告)号：US20160362773A1

公开(公告)日：2016-12-15

申请号：US14735617

申请日：2015-06-10

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Andrew David Deal ,  Laura Cerully Dial ,  Christopher Jay Klapper

IPC: C23C2/26 ,  C23C2/12 ,  C22C27/04 ,  C23C2/34 ,  C22C21/02 ,  C22C27/06

CPC classification number: C23C2/26 ,  B05D7/22 ,  C22C21/02 ,  C22C27/04 ,  C22C27/06 ,  C23C2/12 ,  C23C2/14 ,  C23C2/34

Abstract: A method for reducing surface roughness of an article includes contacting a surface of an article with a molten metal agent, the surface having an initial roughness; altering at least a portion of the surface in the molten metal agent; and removing the surface from contact with the agent; wherein, after the removing step, the surface has a processed roughness that is less than the initial roughness.

Abstract translation: 一种用于降低制品的表面粗糙度的方法包括使制品的表面与熔融金属剂接触，所述表面具有初始粗糙度; 改变所述熔融金属剂中的所述表面的至少一部分; 并将表面除去与试剂的接触; 其中，在去除步骤之后，表面具有小于初始粗糙度的加工粗糙度。

公开(公告)号：US20160122840A1

公开(公告)日：2016-05-05

申请号：US14533145

申请日：2014-11-05

Applicant: General Electric Company

Inventor： Laura Cerully Dial ,  Richard DiDomizio ,  Shenyan Huang

IPC: C21D7/13 ,  F01D5/28 ,  C22C38/28

CPC classification number: C21D7/13 ,  C22C38/00 ,  C22C38/28 ,  F01D5/286 ,  F05D2230/40 ,  F05D2300/608 ,  F05D2300/609

Abstract: A method of forming an article including a nanostructured ferritic alloy is provided. The method provides steps for substantially inhibiting grain growth of a workpiece that includes nanostructured ferritic alloy, during heating and deforming at high temperatures and at high strain rates. Advantageously, the article is formed via conventional high strain rate techniques and thus, cost savings are provided. Articles are also provided which are formed by the method, and the articles so produced exhibit good mechanical properties at high operating temperatures, and thus are utilized as turbomachinery components, and in particular, component of a heavy duty gas turbine or steam turbine. A turbomachinery component comprising an NFA is provided.

Abstract translation: 提供一种形成包括纳米结构的铁素体合金的制品的方法。 该方法提供了用于在加热期间和在高应变速率下变形期间基本上抑制包括纳米结构的铁素体合金的工件的晶粒生长的步骤。 有利地，通过常规的高应变速率技术形成制品，从而提供成本节约。 还提供了通过该方法形成的制品，并且如此制造的制品在高操作温度下表现出良好的机械性能，因此用作涡轮机组件，特别是重型燃气轮机或蒸汽轮机的部件。 提供了包括NFA的涡轮机组件。

公开(公告)号：US20150115749A1

公开(公告)日：2015-04-30

申请号：US14068937

申请日：2013-10-31

Applicant: General Electric Company

Inventor： Laura Cerully Dial ,  Richard DiDomizio ,  Francis Johnson

IPC: H01F7/02 ,  H01F41/02 ,  H02K19/02 ,  C21D1/26 ,  C23C8/26 ,  H01F1/147 ,  C21D9/00

CPC classification number: C23C8/04 ,  C21D1/06 ,  C21D1/26 ,  C21D9/00 ,  C21D2221/00 ,  C22C38/38 ,  C23C8/26 ,  H01F1/147 ,  H02K15/12 ,  H02K19/02 ,  H02K19/103

Abstract: A magnetic component having intermixed first and second regions, and a method of preparing that magnetic component are disclosed. The first region includes a magnetic phase and the second region includes a non-magnetic phase. The method includes mechanically masking pre-selected sections of a surface portion of the component by using a nitrogen stop-off material and heat-treating the component in a nitrogen-rich atmosphere at a temperature greater than about 900° C. Both the first and second regions are substantially free of carbon, or contain only limited amounts of carbon; and the second region includes greater than about 0.1 weight % of nitrogen.

Abstract translation: 具有混合的第一和第二区域的磁性部件，以及制备该磁性部件的方法。 第一区域包括磁性相，第二区域包括非磁性相。 该方法包括通过使用氮气截止材料机械地掩蔽部件的表面部分的预选部分，并在高于大约900℃的温度的富氮气氛中热处理该组分。第一和第 第二区域基本上不含碳，或只含有限量的碳; 并且第二区域包括大于约0.1重量％的氮气。

公开(公告)号：US20150004044A1

公开(公告)日：2015-01-01

申请号：US14074768

申请日：2013-11-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Laura Cerully Dial ,  Matthew Joseph Alinger ,  Richard DiDomizio

IPC: C22C1/05 ,  B22F3/24

CPC classification number: C22C1/051 ,  B22F9/082 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/0285 ,  C22C38/00 ,  B22F2009/041 ,  B22F3/15 ,  B22F3/17

Abstract: An alloy and method of forming the alloy are provided. The alloy includes a matrix phase, and a multimodally distributed population of particulate phases dispersed within the matrix. The matrix includes iron and chromium, and the population includes a first subpopulation of particulate phases and a second subpopulation of particulate phases. The first subpopulation of particulate phases include a complex oxide, having a median size less than about 15 nm, and present in the alloy in a concentration from about 0.1 volume percent to about 5 volume percent. The second subpopulation of particulate phases have a median size in a range from about 25 nm to about 10 microns, and present in the alloy in a concentration from about 0.1 volume percent to about 15 volume percent. Further embodiments include articles, such as turbomachinery components and fasteners, for example, that include the above alloy, and methods for making the alloy.

Abstract translation: 提供合金和合金的形成方法。 该合金包括基质相和分散在基体内的多峰分布的颗粒相的群体。 该基质包括铁和铬，并且群体包括第一亚群的颗粒相和第二亚群的颗粒相。 颗粒相的第一亚群包括中值大小小于约15nm的复合氧化物，并且以约0.1体积％至约5体积％的浓度存在于合金中。 颗粒相的第二亚群的中值大小在约25nm至约10微米的范围内，并且以约0.1体积％至约15体积％的浓度存在于合金中。 另外的实施例包括诸如涡轮机械部件和紧固件的物品，例如包括上述合金，以及制造该合金的方法。

公开(公告)号：US20150004043A1

公开(公告)日：2015-01-01

申请号：US13931108

申请日：2013-06-28

Applicant: General Electric Company

Inventor： Richard DiDomizio ,  Matthew Joseph Alinger ,  Laura Cerully Dial

IPC: C22C1/05 ,  B22F3/24

CPC classification number: C22C38/18 ,  B22F3/24 ,  B22F9/08 ,  B22F9/082 ,  B22F2003/248 ,  B22F2998/10 ,  C22C32/0047 ,  C22C33/0285 ,  C22C38/00 ,  C22F1/11 ,  C22F1/183 ,  C22F1/186 ,  B22F2009/041 ,  B22F3/15 ,  B22F3/17

Abstract: An alloy and method of forming the alloy are provided. The alloy includes a matrix phase, and a population of particulate phases dispersed within the matrix. The matrix includes iron and chromium; and the population includes a first subpopulation of particulate phases and a second subpopulation of particulate phases. The first subpopulation of particulate phases include a complex oxide, having a median size less than about 20 nm, and present in the alloy in a concentration from about 0.1 volume percent to about 5 volume percent. The second subpopulation of particulate phases have a median size in a range from about 30 nm to about 10 microns, and present in the alloy in a concentration from about 1 volume percent to about 15 volume percent.

Abstract translation: 提供合金和合金的形成方法。 合金包括基体相和分散在基体内的颗粒相的群体。 基质包括铁和铬; 并且群体包括颗粒相的第一亚群和颗粒相的第二亚群。 颗粒相的第一亚群包括中值大小小于约20nm的复合氧化物，并且以约0.1体积％至约5体积％的浓度存在于合金中。 颗粒相的第二亚群的中值大小在约30nm至约10微米的范围内，并且以约1体积％至约15体积％的浓度存在于合金中。