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    Process for forming a chromium diffusion portion and articles made therefrom
    3.
    发明授权
    Process for forming a chromium diffusion portion and articles made therefrom 有权
    用于形成铬扩散部分的方法和由其制成的制品

    公开(公告)号：US08262812B2

    公开(公告)日：2012-09-11

    申请号：US11696385

    申请日：2007-04-04

    申请人： David Andrew Helmick ,  Dennis William Cavanaugh ,  Ganjiang Feng ,  David Vincent Bucci

    发明人： David Andrew Helmick ,  Dennis William Cavanaugh ,  Ganjiang Feng ,  David Vincent Bucci

    IPC分类号： C23C10/00 ,  C21D1/70 ,  B05D3/02

    CPC分类号： C23C10/26 ,  Y10T428/12458

    摘要： In one embodiment, a method for forming an article with a diffusion portion comprises: forming a slurry comprising chromium and silicon, applying the slurry to the article, and heating the article to a sufficient temperature and for a sufficient period of time to diffuse chromium and silicon into the article and form a diffusion portion comprising silicon and a microstructure comprising α-chromium. In one embodiment, a gas turbine component comprises: a superalloy and a diffusion portion having a depth of less than or equal to 60 μm measured from the superalloy surface into the gas turbine component. The diffusion portion has a diffusion surface having a microstructure comprising greater than or equal to 40% by volume α-chromium.

    摘要翻译： 在一个实施方案中，用于形成具有扩散部分的制品的方法包括：形成包含铬和硅的浆料，将浆料施加到制品上，并将制品加热至足够的时间以扩散铬和 硅制成制品并形成包含硅和包含α-铬的微结构的扩散部分。 在一个实施例中，燃气轮机部件包括：超高温合金和从超合金表面测量到燃气轮机部件中的深度小于或等于60μm的扩散部分。 扩散部分具有包含大于或等于40体积％α-铬的微结构的扩散表面。

    METHOD OF DEPOSITION OF METALLIC COATINGS USING ATOMIZED SPRAY
    5.
    发明申请
    METHOD OF DEPOSITION OF METALLIC COATINGS USING ATOMIZED SPRAY 有权
    使用原位喷涂沉积金属涂层的方法

    公开(公告)号：US20110081480A1

    公开(公告)日：2011-04-07

    申请号：US12574809

    申请日：2009-10-07

    申请人： David Vincent Bucci ,  Kivilcim Onal Hance ,  Warren Martin Andre Miglietti ,  Canan Uslu Hardwicke

    发明人： David Vincent Bucci ,  Kivilcim Onal Hance ,  Warren Martin Andre Miglietti ,  Canan Uslu Hardwicke

    IPC分类号： B05D1/12 ,  B05D3/02 ,  B05D3/00

    CPC分类号： C23C10/28 ,  B23K1/0018 ,  B23K1/008 ,  B23K2101/001 ,  B23K2101/34 ,  C23C10/30 ,  C23C10/32 ,  C23C10/38 ,  C23C10/44 ,  C23C10/52

    摘要： A method of coating a metal substrate such as the components in second and third stages of gas turbine engines in order to increase the oxidation and corrosion resistance of the metal substrate under high temperature operating conditions, the method including the steps of forming a powdered mixture of a high-melt superalloy or MCrAlY component, where M comprises Fe, Ni and/or Co, and a low-melt component containing about 2-5 wt. % silicon, boron or hafnium, applying the powdered mixture to the surface of the metal substrate at room temperature using an atomized spray to form a uniform surface coating, and then heating the coated substrate surface under vacuum conditions to a temperature in the range of about 1900° F. to 2275° F. to obtain a uniform coating composition providing oxidation resistance to the underlying substrate.

    摘要翻译： 为了提高金属基板在高温运转条件下的耐氧化性和耐腐蚀性，可以采用如燃气轮机的第二，第三级中的成分涂敷金属基材的方法，该方法包括以下步骤： 高熔点超合金或MCrAlY组分，其中M包含Fe，Ni和/或Co，以及含有约2-5wt。 ％硅，硼或铪，使用雾化喷雾将粉末状混合物在室温下施加到金属基材的表面，以形成均匀的表面涂层，然后在真空条件下将涂覆的基材表面加热至约 1900°F至2275°F，以获得对底层基底提供抗氧化性的均匀涂层组合物。

    HYBRID LASER ARC WELDING PROCESS AND APPARATUS
    10.
    发明申请
    HYBRID LASER ARC WELDING PROCESS AND APPARATUS 审中-公开
    混合激光焊接工艺和设备

    公开(公告)号：US20130309000A1

    公开(公告)日：2013-11-21

    申请号：US13476458

    申请日：2012-05-21

    申请人： Dechao Lin ,  David Vincent Bucci ,  Srikanth Chandrudu Kottilingam ,  Yan Cui

    发明人： Dechao Lin ,  David Vincent Bucci ,  Srikanth Chandrudu Kottilingam ,  Yan Cui

    IPC分类号： B23K28/02 ,  B23K101/00

    CPC分类号： B23K28/02 ,  B23K26/0608 ,  B23K26/0652 ,  B23K26/0676 ,  B23K26/348 ,  Y10T403/477

    摘要： A welding method and apparatus that simultaneously utilize laser beams and arc welding techniques. The welding apparatus generates a first laser beam that is projected onto a joint region between at least two workpieces to produce a first laser beam projection on adjacent surfaces of the workpieces and to cause the first laser beam projection to travel along the joint region and penetrate the joint region. The apparatus also generates an electric arc to produce an arc projection that encompasses the first laser beam projection and travels therewith along the joint region to form a molten weld pool. In addition, the apparatus generates a pair of lateral laser beams that produce lateral laser beams projections that are encompassed by the arc projection and are spaced laterally apart from the joint region to interact with portions of the weld pool that solidify to define weld toes of the weld joint.

    摘要翻译： 一种同时使用激光束和电弧焊接技术的焊接方法和装置。 焊接装置产生投射在至少两个工件之间的接合区域上的第一激光束，以在工件的相邻表面上产生第一激光束投影，并且使第一激光束投影沿着接合区域行进并穿透 联合区域。 该装置还产生电弧以产生包围第一激光束突起并沿其沿着接合区域行进的弧形突起，以形成熔融熔池。 另外，该装置产生一对横向激光束，该横向激光束产生横向激光束突起，该突出部被弧形突起包围，并且与接合区域横向间隔开，以与凝固的部分熔池相互作用，以限定焊接趾部 焊缝。