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    METHOD FOR ALTERING METAL SURFACES
    3.
    发明申请
    METHOD FOR ALTERING METAL SURFACES 审中-公开
    改善金属表面的方法

    公开(公告)号：US20170051389A1

    公开(公告)日：2017-02-23

    申请号：US14831930

    申请日：2015-08-21

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Laura Cerully Dial ,  William Thomas Carter ,  Michael Francis Xavier Gigliotti, JR.

    IPC: C23C10/08 ,  C23C10/28 ,  C23C10/02 ,  C25D3/12 ,  C23C10/60

    CPC classification number: C23C10/08 ,  C23C10/02 ,  C23C10/28 ,  C23C10/30 ,  C23C10/60 ,  C23C24/08 ,  C23F1/20 ,  C23F1/44 ,  C23F17/00 ,  C25D3/12 ,  C25D5/50 ,  F01D5/288 ,  F05D2260/202

    Abstract: A surface of an article is modified by first disposing a nickel-enriched region at the surface of a substrate, then enriching the nickel-enriched region with aluminum to form an aluminized region, and finally removing at least a portion of the aluminized region to form a processed surface of the substrate. Upon removal of this material, the roughness of the surface is reduced from a comparatively high initial roughness value to a comparatively low processed roughness value. In some embodiments, the processed roughness is less than about 95% of the initial roughness. Moreover, the sequence of steps described herein may be iterated one or more times to achieve further reduction in substrate surface roughness.

    Abstract translation: 通过首先在基材的表面上设置富镍区域，然后用铝富集富镍区域以形成镀铝区域，并最终除去至少一部分镀铝区域形成物品的表面，从而形成 衬底的经处理的表面。 在去除这种材料后，表面的粗糙度从较高的初始粗糙度值降低到较低的加工粗糙度值。 在一些实施例中，加工的粗糙度小于初始粗糙度的约95％。 此外，本文所述的步骤的顺序可以重复一次或多次以实现衬底表面粗糙度的进一步降低。

    NICKEL BASE SUPER ALLOYS AND METHODS OF MAKING THE SAME
    7.
    发明申请
    NICKEL BASE SUPER ALLOYS AND METHODS OF MAKING THE SAME 审中-公开

    公开(公告)号：US20200024699A1

    公开(公告)日：2020-01-23

    申请号：US16221452

    申请日：2018-12-15

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Laura Cerully Dial ,  Michael Francis Xavier Gigliotti, JR.

    IPC: C22C19/05 ,  C22F1/10 ,  B23K26/342 ,  B23K26/00 ,  C22C1/04 ,  B33Y80/00 ,  B22F3/105 ,  H01F1/147

    Abstract: Methods of forming an intermediate alloy and a Ni-base super alloy are disclosed along with the intermediate alloy and the Ni-base super alloy formed by the method. The method includes at least partially melting and solidifying a powder including about 5 to 15 wt. % of Co, 10 to 20 wt. % of Cr, 3 to 6 wt. % of Mo, 3 to 6 wt. % of W, 2 to 4 wt. % of Al, 4.2 to 4.7 wt. % of Ti, 0.01 to 0.05 wt. % of Zr, 0.015 to 0.060 wt. % of C, 0.001 to 0.030 wt. % of B and balance substantially Ni to form an intermediate alloy including a dendrite structure that includes columnar regions and intercolumnar regions and a primary dendrite arm spacing less than about 3 micrometers. The intermediate alloy is heat-treated to form the texture-free Ni-base super alloy.

    Nickel-Based Superalloys and Articles
    9.
    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：US20160201167A1

    公开(公告)日：2016-07-14

    申请号：US14992909

    申请日：2016-01-11

    Applicant: General Electric Company

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

    IPC: C22C19/05 ,  F23R3/42 ,  F01D9/04 ,  B22D27/04 ,  F01D5/28

    CPC classification number: C22C19/057 ,  B22D27/045 ,  F01D5/28 ,  F01D9/041 ,  F05D2220/32 ,  F05D2240/35 ,  F05D2300/175 ,  F23R3/42

    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 and oxidation resistance substantially equivalent to or better than 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，合金具有基本上等于或优于含铼单晶合金的蠕变和抗氧化性能。 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。

    COBALT-NICKEL BASE ALLOY AND METHOD OF MAKING AN ARTICLE THEREFROM
    10.
    发明申请
    COBALT-NICKEL BASE ALLOY AND METHOD OF MAKING AN ARTICLE THEREFROM 审中-公开

    公开(公告)号：US20190203323A1

    公开(公告)日：2019-07-04

    申请号：US16297700

    申请日：2019-03-10

    Applicant: General Electric Company

    Inventor： Akane Suzuki ,  Andrew John Elliott ,  Michael Francis Xavier Gigliotti, JR. ,  Kathleen Blanche Morey ,  Pazhayannur Subramanian

    IPC: C22C19/07 ,  C22C19/05 ,  C22F1/10

    CPC classification number: C22C19/07 ,  C22C19/057 ,  C22F1/10

    Abstract: A high-temperature, high-strength, oxidation-resistant cobalt-nickel base alloy is disclosed. The alloy includes, in weight percent: about 3.5 to about 4.9% of Al, about 12.2 to about 16.0% of W, about 24.5 to about 32.0% Ni, about 6.5% to about 10.0% Cr, about 5.9% to about 11.0% Ta, and the balance Co and incidental impurities. A method of making an article having high-temperature strength, cyclic oxidation resistance and corrosion resistance is disclosed. The method includes forming a high-temperature, high-strength, oxidation-resistant cobalt-nickel base alloy as described herein; forming an article from the alloy; solution-treating the alloy by a solution heat treatment; and aging the alloy by providing at least one aging heat treatment at an aging temperature that is less than the gamma-prime solvus temperature, wherein the alloy is configured to form a continuous, protective, adherent oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment.

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