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    Combustion system including a transition piece and method of forming using a cast superalloy
    4.
    发明公开
    Combustion system including a transition piece and method of forming using a cast superalloy 审中-公开
    包括过渡件的燃烧系统和使用铸造高温合金成形的方法

    公开(公告)号：EP2657453A3

    公开(公告)日：2018-03-28

    申请号：EP13164742.2

    申请日：2013-04-22

    申请人： General Electric Company

    发明人： McMahan, Kevin Weston ,  Peck, Arthur ,  Vlessis, Nicholas

    IPC分类号： F01D9/02 ,  B22C9/04 ,  B22D19/04 ,  B22D21/02

    CPC分类号： F01D9/023 ,  B22C9/04 ,  B22D19/0009 ,  B22D19/045 ,  B22D21/025 ,  B23P2700/13 ,  F05D2230/21 ,  F05D2230/211 ,  F05D2230/53 ,  F05D2300/175 ,  Y10T29/49988

    摘要： A combustion system including a transition piece (44) and method of forming the transition piece (44) using a cast nickel-based superalloy is provided. The transition piece (44) includes a body (68) defining a flowpath (72) and enclosure (70), the body (68) having a circular inlet section (60) for receiving combustion product from the combustor (40) and an outlet end (62) for flowing the combustor products into a first stage nozzle of a gas turbine. The transition piece (44) comprises a one-piece single casting construction of the circular inlet section (60), the body (68), and the outlet end (62). The transition piece (44) is formed from a nickel-based superalloy. The transition piece has a thick-to-thin ratio of wall thickness (84) of thick transition (80) to wall thickness (84) of thin transition (82) of about 1.1 to about 2.5.

    摘要翻译： 提供了包括过渡件（44）的燃烧系统以及使用铸造镍基超级合金来形成过渡件（44）的方法。 过渡件（44）包括限定流动路径（72）和外壳（70）的主体（68），主体（68）具有用于从燃烧器（40）接收燃烧产物的圆形入口部分（60） （62），用于使燃烧器产品流入燃气轮机的第一级喷嘴。 过渡件（44）包括圆形入口部分（60），主体（68）和出口端（62）的单件单一铸造结构。 过渡件（44）由镍基超级合金形成。 所述过渡件具有约1.1至约2.5的厚至薄比例的厚过渡部（80）的壁厚（84）与薄过渡部（82）的壁厚（84）。

    GRAIN REFINEMENT IN IN706 USING LAVES PHASE PRECIPITATION
    5.
    发明公开
    GRAIN REFINEMENT IN IN706 USING LAVES PHASE PRECIPITATION 审中-公开
    在IN706中利用相分离进行晶粒细化

    公开(公告)号：EP3290536A1

    公开(公告)日：2018-03-07

    申请号：EP17188058.6

    申请日：2017-08-28

    申请人： General Electric Company

    发明人： MORRA, Martin Matthew ,  DETOR, Andrew Joseph ,  MARTIN, Etienne ,  SHARGHI-MOSHTAGHIN, Reza

    IPC分类号： C22C19/03 ,  C22F1/10

    CPC分类号： C22F1/10 ,  C21D2211/004 ,  C22C19/03 ,  C22C19/056 ,  C22C30/00 ,  F01D5/28 ,  F05D2240/30 ,  F05D2300/175 ,  F05D2300/608

    摘要： Provided is a method (200) of fabricating an article, including deforming (210) an ingot of a nickel-based superalloy to form an intermediate article, forming a substantially homogeneous dispersion of Laves phase precipitates (240) within the intermediate article by cooling the intermediate article (220) and exposing the intermediate article to a temperature range (230) wherein the Laves phase precipitates are present at a concentration of at least about 0.05 % by volume and the precipitates have a mean diameter of less than one micron. Also provided is a nickel-based superalloy including a substantially homogeneous dispersion of Laves phase precipitates, wherein the intergranular and transgranular Laves phase precipitates are present at a concentration of at least about 0.1 % by volume and wherein the precipitates have a mean diameter of less than one micron. Precipitation of Laves phase may control microstructure during Thermo-mechanical processing and produce superalloys with refined grain size.

    摘要翻译： 提供一种制造制品的方法（200），包括使镍基超级合金锭变形（210）以形成中间制品，通过冷却所述中间制品而在所述中间制品内形成基本均匀的Laves相沉淀物分散体（240） 中间制品（220）并将中间制品暴露于温度范围（230），其中Laves相沉淀物以至少约0.05体积％的浓度存在，并且沉淀物的平均直径小于1微米。 还提供了一种镍基高温合金，其包括Laves相沉淀物的基本上均匀的分散体，其中晶间和穿晶Laves相沉淀物以至少约0.1体积％的浓度存在，并且其中沉淀物的平均直径小于 一微米。 Laves相的析出可控制热机械加工过程中的微观组织，并生成晶粒尺寸精细的超合金。

    ENHANCED SUPERALLOYS BY ZIRCONIUM ADDITION
    9.
    发明公开
    ENHANCED SUPERALLOYS BY ZIRCONIUM ADDITION 审中-公开
    通过添加锆来增强超级合金

    公开(公告)号：EP3183372A2

    公开(公告)日：2017-06-28

    申请号：EP15837155.9

    申请日：2015-08-17

    申请人： General Electric Company

    发明人： MOURER, David, Paul ,  WESSMAN, Andrew, Ezekiel

    IPC分类号： C22C19/05

    CPC分类号： C22C19/056 ,  F01D5/02 ,  F01D5/3007 ,  F01D25/005 ,  F05D2220/32 ,  F05D2300/175

    摘要： A gamma prime nickel-based superalloy is provided, which can include a combination of Ti and Zr in a total weight amount sufficient to form cellular precipitates located at grain boundaries of the alloy, wherein the cellular precipitates define gamma prime arms that distort the grain boundaries at which they are located. The Hf-containing, gamma prime nickel-based superalloy and/or the gamma prime nickel-based superalloy can include cellular precipitates that are predominantly located at grain boundaries of the alloy such that the cellular precipitates define gamma prime arms that distort the grain boundaries at which they are located. The superalloys can further include finer gamma prime precipitates (e.g., cuboidal or spherical precipitates) than the cellular precipitates.

    摘要翻译： 提供一种γ基镍基高温合金，其可以包括足以形成位于合金的晶界（32）处的细胞沉淀（30）的总重量的Ti和Zr的组合，其中细胞沉淀（30） 定义使它们所在的晶界（32）变形的伽马主臂（42）。 含Hf的γ'基镍基超级合金和/或γ'基镍基超级合金可包括主要位于合金的晶界（32）处的细胞沉淀物（30），使得细胞沉淀物（30）限定 γ原子臂（42）扭曲它们所在的晶界（32）。 超级合金可以进一步包括比细胞沉淀物（30）更细的γ'沉淀物（例如立方形或球形沉淀物）。