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    NICKEL ALLOY AND ARTICLES
    14.
    发明申请
    NICKEL ALLOY AND ARTICLES 有权
    镍合金和文章

    公开(公告)号：US20120027607A1

    公开(公告)日：2012-02-02

    申请号：US12844277

    申请日：2010-07-27

    申请人： Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    发明人： Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    IPC分类号： F04D29/38 ,  C22F1/00 ,  C22C30/00

    CPC分类号： C22C19/056 ,  C22C19/03 ,  C22C19/05 ,  C22C19/07 ,  C22F1/10

    摘要： Articles suitable for use in high temperature applications, such as turbomachinery components, and methods for making such articles, are provided. One embodiment is an article. The article comprises a material comprising a plurality of L12-structured gamma-prime phase precipitates distributed within a matrix phase at a concentration of at least 20% by volume, wherein the gamma-prime phase precipitates are less than 1 micrometer in size, and a plurality of A3-structured eta phase precipitates distributed within the matrix phase at a concentration in the range from about 1% to about 25% by volume. The solvus temperature of the eta phase is higher than the solvus temperature of the gamma-prime phase. Moreover, the material has a median grain size less than 10 micrometers. The method comprises providing a workpiece, the workpiece comprising at least about 40% nickel, from about 1.5% to about 8% titanium, and from about 1.5% to about 4.5% aluminum. A weight ratio of titanium to aluminum is in the range from about 1 to about 4, and the workpiece further comprises a plurality of A3-structured ordered eta phase precipitates distributed within the matrix phase at a concentration in the range from about 1% to about 25% by volume. The method further comprises mechanically working the workpiece at a temperature below a solvus temperature of the eta phase; and heat treating the workpiece at a temperature sufficiently high to dissolve any gamma prime phase present in the workpiece but below the solvus temperature of the eta phase.

    摘要翻译： 提供适用于高温应用的制品，例如涡轮机械部件，以及制造这种制品的方法。 一个实施例是一篇文章。 该制品包括一种材料，其包含分布在基质相中的至少20体积％浓度的多个L12-结构的γ-初相相析出物，其中γ'相析出物的尺寸小于1微米， 分布在基质相中的多个A3结构的η相析出物以约1体积％至约25体积％的浓度。 eta相的solvus温度高于γ-phase相的solvus温度。 此外，材料的中值粒径小于10微米。 所述方法包括提供工件，所述工件包括至少约40％的镍，约1.5％至约8％的钛和约1.5％至约4.5％的铝。 钛与铝的重量比在约1至约4的范围内，并且工件进一步包含分布在基质相中的多个A3结构有序的η相析出物，浓度范围为约1％至约 25％（体积）。 该方法还包括在低于eta相的solvus温度的温度下机械加工工件; 并在足够高的温度下对工件进行热处理，以溶解存在于工件中但低于eta相的solvus温度的任何γ'相。

    Nickel alloy and articles
    18.
    发明授权
    Nickel alloy and articles 有权
    镍合金和制品

    公开(公告)号：US08608877B2

    公开(公告)日：2013-12-17

    申请号：US12844277

    申请日：2010-07-27

    申请人： Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    发明人： Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    IPC分类号： C22F1/10 ,  C22F1/16 ,  C22C30/00 ,  C22C19/03 ,  C22C19/05

    CPC分类号： C22C19/056 ,  C22C19/03 ,  C22C19/05 ,  C22C19/07 ,  C22F1/10

    摘要： Articles that include a material that has L12-structured gamma-prime phase precipitates within a matrix phase at a concentration of at least 20% by volume are disclosed. The gamma-prime phase precipitates are less than 1 micrometer in size. The material also has A3-structured eta phase precipitates distributed within the matrix phase at a concentration in the range from about 1% to about 25% by volume. The articles may be formed by mechanically working a workpiece that has at least about 40% nickel, about 1.5% to about 8% titanium, and about 1.5% to about 4.5% aluminum. The workpiece may be worked at a temperature below a solvus temperature of the eta phase; and then heat treated at a temperature sufficient to dissolve any gamma prime phase present in the workpiece but below the solvus temperature of the eta phase.

    摘要翻译： 公开了包含具有至少20体积％浓度的基质相中具有L12结构的γ-原相的材料的制品。 γ相相析出物的尺寸小于1微米。 该材料还具有分布在基质相中的A3结构的η相析出物，浓度范围为约1体积％至约25体积％。 制品可以通过机械加工具有至少约40％的镍，约1.5％至约8％的钛和约1.5％至约4.5％的铝的工件来形成。 可以在低于eta相的solvus温度的温度下加工工件; 然后在足以溶解存在于工件中但低于eta相的溶质温度的任何γ'相的温度下进行热处理。