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    Nickel-Based Superalloys and Articles
    3.
    发明申请
    Nickel-Based Superalloys and Articles 审中-公开
    镍基超合金和制品

    公开(公告)号：US20110076182A1

    公开(公告)日：2011-03-31

    申请号：US12571013

    申请日：2009-09-30

    Applicant: Akane Suzuki ,  Michael Francis Xavier Gigliotti, JR. ,  Shyh-Chin Huang ,  Pazhayannur Ramanathan Subramanian

    Inventor： Akane Suzuki ,  Michael Francis Xavier Gigliotti, JR. ,  Shyh-Chin Huang ,  Pazhayannur Ramanathan Subramanian

    IPC: C22C19/05 ,  B22D27/04

    CPC classification number: C22C19/057

    Abstract: Rhenium-free nickel based alloys are provided. More particularly, the alloys comprise preferred levels and ratios of elements so as to achieve good high temperature strength of both gamma matrix phase and gamma prime precipitates, as well as good environmental resistance, without using rhenium. When cast and directionally solidified into single crystal form, the alloys exhibit creep resistance substantially equivalent to rhenium-bearing single-crystal alloys. Further, the alloys can be processed by directional solidification into articles in single crystal form or columnar structure comprising fine dendrite arm spacing, e.g., less than 400 μm, if need be, so that further improvements in mechanical properties in the articles can be seen.

    Abstract translation: 提供无铼镍基合金。 更具体地，合金包括优选的含量和元素比例，以便在不使用铼的情况下实现γ基质相和γ初始沉淀物的良好的高温强度以及良好的耐环境性。 当铸造和定向凝固成单晶形式时，合金具有基本上等同于含铼单晶合金的抗蠕变性。 此外，如果需要，合金可以通过定向固化加工成单晶形状或柱状结构的制品，包括细小的枝晶臂间距，例如小于400μm，从而可以看到制品中机械性能的进一步改善。

    Nickel-Based Superalloys and Articles
    4.
    发明申请
    Nickel-Based Superalloys and Articles 审中-公开
    镍基超合金和制品

    公开(公告)号：US20110076181A1

    公开(公告)日：2011-03-31

    申请号：US12570861

    申请日：2009-09-30

    Applicant: Akane Suzuki ,  Michael Francis Xavier Gigliotti, Jr. ,  Shyh-Chin Huang ,  Pazhayannur Ramanathan Subramanian

    Inventor： Akane Suzuki ,  Michael Francis Xavier Gigliotti, Jr. ,  Shyh-Chin Huang ,  Pazhayannur Ramanathan Subramanian

    IPC: C22C19/05 ,  B22D27/04

    CPC classification number: C22C19/057 ,  C30B11/00 ,  C30B28/06 ,  C30B29/52 ,  C30B29/605

    Abstract: Rhenium-free nickel based alloys are provided. More particularly, the alloys comprise preferred levels and ratios of elements so as to achieve good high temperature strength of both gamma matrix phase and gamma prime precipitates, as well as good environmental resistance, without using rhenium. When cast and directionally solidified into single crystal form, the alloys exhibit oxidation resistance better than or comparable to rhenium-bearing single-crystal alloys, and creep rupture life comparable to rhenium-bearing single-crystal alloys. Further, the alloys can be processed by directional solidification into articles in single crystal form or columnar structure comprising fine dendrite arm spacing, e.g., less than 400 μm, if need be, so that further improvements in mechanical properties in the articles can be seen.

    Abstract translation: 提供无铼镍基合金。 更具体地，合金包括优选的含量和元素比例，以便在不使用铼的情况下实现γ基质相和γ初始沉淀物的良好的高温强度以及良好的耐环境性。 当铸造和定向凝固成单晶形式时，合金表现出比具有铼承载单晶合金更好或可媲美的抗氧化性，以及与含铼单晶合金相当的蠕变断裂寿命。 此外，如果需要，合金可以通过定向固化加工成单晶形状或柱状结构的制品，包括细小的枝晶臂间距，例如小于400μm，从而可以看到制品中机械性能的进一步改善。

    CASTING MOLDS FOR USE IN A DIRECTIONAL SOLIDIFICATION PROCESS AND METHODS OF MAKING
    7.
    发明申请
    CASTING MOLDS FOR USE IN A DIRECTIONAL SOLIDIFICATION PROCESS AND METHODS OF MAKING 审中-公开
    铸造用于方向性固化方法的方法和制备方法

    公开(公告)号：US20090205799A1

    公开(公告)日：2009-08-20

    申请号：US12033486

    申请日：2008-02-19

    Applicant: Andrew John Elliott ,  Michael Francis Xavier Gigliotti ,  Shyh-Chin Huang ,  Roger Petterson ,  Stephen Francis Rutkowski

    Inventor： Andrew John Elliott ,  Michael Francis Xavier Gigliotti ,  Shyh-Chin Huang ,  Roger Petterson ,  Stephen Francis Rutkowski

    IPC: B22D27/04 ,  B22C9/00

    CPC classification number: B22D27/045 ,  B22C3/00 ,  B22C9/04

    Abstract: Molds 16 for casting molten materials using a directional solidification process and methods for forming a barrier layer between a liquid cooling medium 20 and a molten material of a casting process are provided. According to an embodiment, a mold 16 for casting a molten material comprises an inner surface at least partially coated with a metal oxide slurry 32 comprising metal oxide particles, wherein the metal oxide slurry 32 is capable of inhibiting a liquid cooling medium 20 from contacting a molten metal or metal alloy when the molten metal or metal alloy is disposed within an interior of the mold 16 and the mold 16 is disposed in the liquid cooling medium 20.

    Abstract translation: 提供了使用定向凝固方法铸造熔融材料的模具16和用于在液体冷却介质20和铸造工艺的熔融材料之间形成阻挡层的方法。 根据实施例，用于铸造熔融材料的模具16包括至少部分地涂覆有包含金属氧化物颗粒的金属氧化物浆料32的内表面，其中金属氧化物浆料32能够抑制液体冷却介质20接触 当熔融金属或金属合金设置在模具16的内部并且模具16设置在液体冷却介质20中时，熔融金属或金属合金。

    Brazing alloy compositions and methods
    8.
    发明申请
    Brazing alloy compositions and methods 审中-公开
    钎焊合金组成和方法

    公开(公告)号：US20090159645A1

    公开(公告)日：2009-06-25

    申请号：US12316889

    申请日：2008-12-16

    Applicant: Laurent Cretegny ,  Ann Melinda Ritter ,  Shyh-Chin Huang ,  Liang Jiang ,  Warren Martin Andre Miglietti

    Inventor： Laurent Cretegny ,  Ann Melinda Ritter ,  Shyh-Chin Huang ,  Liang Jiang ,  Warren Martin Andre Miglietti

    IPC: C22C19/05 ,  B23K31/02 ,  C22C19/07

    CPC classification number: C22C19/058 ,  C22C19/056 ,  C22C19/057 ,  C22C19/07

    Abstract: Various braze alloy compositions are described, along with methods for using them. In one instance, a boron-free, high-temperature braze alloy includes selected amounts of chromium, hafnium, and nickel. The braze alloy can be used, for example, as a component in a wide gap braze mixture where a higher or lower melting point superalloy and/or brazing powder is used. The braze alloys may permit joining or repairing of superalloy articles with complex shapes, and may be used in high temperature applications. In some other braze alloy embodiments, a nickel- or cobalt-based braze composition can contain selected amounts of boron, but includes restricted amounts of chromium.

    Abstract translation: 描述了各种钎焊合金组合物以及使用它们的方法。 在一种情况下，无硼的高温钎焊合金包括选定量的铬，铪和镍。 钎焊合金可以用作例如使用更高或更低熔点的高合金和/或钎焊粉末的宽间隙钎焊混合物中的组分。 钎焊合金可以允许具有复杂形状的超合金制品的接合或修复，并且可以在高温应用中使用。 在一些其它钎焊合金实施例中，基于镍或钴的钎焊组合物可以含有选定量的硼，但包括限定量的铬。

    Wrought gamma titanium aluminide alloys modified by chromium, boron, and nionium
    10.
    发明授权
    Wrought gamma titanium aluminide alloys modified by chromium, boron, and nionium 失效
    由铬，硼和镍改性的锻造的γ钛化铝合金

    公开(公告)号：US5205875A

    公开(公告)日：1993-04-27

    申请号：US801557

    申请日：1991-12-02

    Applicant: Shyh-Chin Huang

    Inventor： Shyh-Chin Huang

    IPC: C22C14/00 ,  C22F1/00 ,  C22F1/18

    CPC classification number: C22C14/00 ,  C22F1/183

    Abstract: A TiAl composition is prepared to have high strength and to have improved ductility by altering the atomic ratio of the titanium and aluminum to have what has been found to be an effective aluminum concentration and by addition of chromium, boron, and niobium according to the approximate formula Ti-Al.sub.46-48 Cr.sub.2 Nb.sub.2 B.sub.0.1-0.2. The composition is preferably prepared by casting, homogenization at a high temperature, and forging the homogenized casting.

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