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    NICKEL ALLOY AND ARTICLES
    33.
    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

    Applicant: Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    Inventor： Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

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

    CPC classification number: C22C19/056 ,  C22C19/03 ,  C22C19/05 ,  C22C19/07 ,  C22F1/10

    Abstract: 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.

    Abstract translation: 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。

    Friction stir welding system
    34.
    发明授权
    Friction stir welding system 有权
    摩擦搅拌焊接系统

    公开(公告)号：US07832613B2

    公开(公告)日：2010-11-16

    申请号：US12354221

    申请日：2009-01-15

    Applicant: Timothy Hanlon ,  Timothy Joseph Trapp ,  Earl Claude Helder ,  Pazhayannur Ramanathan Subramanian

    Inventor： Timothy Hanlon ,  Timothy Joseph Trapp ,  Earl Claude Helder ,  Pazhayannur Ramanathan Subramanian

    IPC: B23K20/12 ,  B23K37/04

    CPC classification number: B23K20/126 ,  B23K20/1245 ,  B23K37/06

    Abstract: A system, in certain embodiments, includes a backing plate, a tungsten-based member disposed along the backing plate, wherein the tungsten-based member defines a welding work surface, and the tungsten-based member comprises curved grooves configured to secure the tungsten-based member to the backing plate. The system also includes a drive. The system includes a pin tool movable by the drive to create friction along one or more workpieces disposed on the welding work surface, wherein the frictional heating and mechanical stirring is configured to create a stir weld along the one or more workpieces. The system, in some embodiments, also may include a backing plate comprising liquid passages and gas passages and a tungsten-based member disposed along the backing plate, wherein the tungsten-based member defines a welding work surface.

    Abstract translation: 在某些实施例中，系统包括背板，沿着背板设置的钨基构件，其中钨基构件限定焊接工作表面，并且所述钨基构件包括弯曲凹槽，其被构造成固定钨 - 基板构件到背板。 该系统还包括一个驱动器。 所述系统包括可由所述驱动器移动以沿着设置在所述焊接工作表面上的一个或多个工件产生摩擦的销工具，其中所述摩擦加热和机械搅拌被配置成沿着所述一个或多个工件产生搅拌焊接。 在一些实施例中，该系统还可以包括包括液体通道和气体通道的背板和沿着背板设置的钨基构件，其中钨基构件限定焊接工作表面。

    FRICTION STIR WELDING SYSTEM
    36.
    发明申请
    FRICTION STIR WELDING SYSTEM 有权
    摩擦焊接系统

    公开(公告)号：US20100176182A1

    公开(公告)日：2010-07-15

    申请号：US12354221

    申请日：2009-01-15

    Applicant: Timothy Hanlon ,  Timothy Joseph Trapp ,  Earl Claude Helder ,  Pazhayannur Ramanathan Subramanian

    Inventor： Timothy Hanlon ,  Timothy Joseph Trapp ,  Earl Claude Helder ,  Pazhayannur Ramanathan Subramanian

    IPC: B23K20/12

    CPC classification number: B23K20/126 ,  B23K20/1245 ,  B23K37/06

    Abstract: A system, in certain embodiments, includes a backing plate, a tungsten-based member disposed along the backing plate, wherein the tungsten-based member defines a welding work surface, and the tungsten-based member comprises curved grooves configured to secure the tungsten-based member to the backing plate. The system also includes a drive. The system includes a pin tool movable by the drive to create friction along one or more workpieces disposed on the welding work surface, wherein the frictional heating and mechanical stirring is configured to create a stir weld along the one or more workpieces. The system, in some embodiments, also may include a backing plate comprising liquid passages and gas passages and a tungsten-based member disposed along the backing plate, wherein the tungsten-based member defines a welding work surface.

    Abstract translation: 在某些实施例中，系统包括背板，沿着背板设置的钨基构件，其中钨基构件限定焊接工作表面，并且所述钨基构件包括弯曲凹槽，其被构造成固定钨 - 基板构件到背板。 该系统还包括一个驱动器。 所述系统包括可由所述驱动器移动以沿着设置在所述焊接工作表面上的一个或多个工件产生摩擦的销工具，其中所述摩擦加热和机械搅拌被配置成沿着所述一个或多个工件产生搅拌焊接。 在一些实施例中，该系统还可以包括包括液体通道和气体通道的背板和沿着背板设置的钨基构件，其中钨基构件限定焊接工作表面。

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