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    Nickel alloy and articles
    1.
    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。

    NICKEL ALLOY AND ARTICLES
    2.
    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。

    TITANIUM-CONTAINING ARTICLE AND METHOD FOR MAKING
    3.
    发明申请
    TITANIUM-CONTAINING ARTICLE AND METHOD FOR MAKING 审中-公开
    含钛的制品和制造方法

    公开(公告)号：US20100326571A1

    公开(公告)日：2010-12-30

    申请号：US12494405

    申请日：2009-06-30

    申请人： Andrew David Deal ,  Radhakrishna Badekila Bhat ,  Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    发明人： Andrew David Deal ,  Radhakrishna Badekila Bhat ,  Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    IPC分类号： C22C14/00 ,  C22F1/18

    CPC分类号： C22C14/00 ,  C22C1/02 ,  C22F1/183

    摘要： An article made of an alloy, and a method for making the article, are presented. The alloy is substantially free of martensite, and comprises the following composition: at least about 75 weight percent titanium; up to about 10 weight percent of a beta stabilizing component; from about 3 weight percent to about 15 weight percent of an alpha stabilizing component; and from about 0.05 weight percent to about 5 weight percent germanium. Another embodiment is a method for fabricating an article. The method comprises providing a billet made of an alloy as described above, and stabilizing the billet microstructure to form a stabilized billet; the method may further comprise superplastically processing the stabilized billet to form a processed item.

    摘要翻译： 介绍了一种合金制成的制品及其制造方法。 该合金基本上不含马氏体，并且包含以下组成：至少约75重量％的钛; 至多约10重量％的β稳定组分; 约3重量％至约15重量％的α稳定组分; 和约0.05重量％至约5重量％的锗。 另一实施例是用于制造制品的方法。 该方法包括提供如上所述的由合金制成的坯料，并且使坯料微结构稳定以形成稳定的坯料; 该方法还可以包括超塑性处理稳定的坯料以形成经处理的物品。

    Method of forming a structural component having a nano sized/sub-micron homogeneous grain structure
    8.
    发明授权
    Method of forming a structural component having a nano sized/sub-micron homogeneous grain structure 失效
    形成具有纳米尺寸/亚微米均匀晶粒结构的结构组分的方法

    公开(公告)号：US07296453B1

    公开(公告)日：2007-11-20

    申请号：US11285853

    申请日：2005-11-22

    申请人： Ramkumar Kashyap Oruganti ,  Pazhayannur Ramanathan Subramanian ,  Judson Sloan Marte

    发明人： Ramkumar Kashyap Oruganti ,  Pazhayannur Ramanathan Subramanian ,  Judson Sloan Marte

    IPC分类号： B21C23/00

    CPC分类号： B21C23/002 ,  B21C23/001 ,  B21C23/22

    摘要： A method of making nano/sub-micron sized grains in a work piece material having a lateral side has the steps of providing a die. The die has an entrance channel with a longitudinal axis and an exit channel. The entrance channel and the exit channel are connected to one another to form an angle. The method has the step of providing a first sacrificial material with a complementary size to the work piece and placing the sacrificial first material and the work piece in an entrance channel. The first sacrificial material and the work piece are aligned with the longitudinal axis. The method has the step of extruding the combination of the first sacrificial material, and the work piece through the intersection of the entrance and the exit channels. The resulting shear deformation forms the nano/sub-micron sized grains in the work piece. This configuration reduces frictional effects thereby producing homogenous nano grain structure. This configuration reduces applied load and enables equal channel angular extrusion of thin sheets.

    摘要翻译： 在具有侧面的工件材料中制造纳米/亚微米尺寸的颗粒的方法具有提供模具的步骤。 模具具有纵向轴线和出口通道的入口通道。 入口通道和出口通道彼此连接形成一个角度。 该方法具有提供具有与工件互补的尺寸的第一牺牲材料并将牺牲的第一材料和工件放置在入口通道中的步骤。 第一牺牲材料和工件与纵向轴线对齐。 该方法具有通过入口和出口通道的交叉部分挤出第一牺牲材料和工件的组合的步骤。 所产生的剪切变形在工件中形成纳米/亚微米尺寸的颗粒。 这种结构降低摩擦效应，从而产生均匀的纳米晶粒结构。 该配置减少了施加的负载，并实现了薄板的等通道角挤压。