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    METHOD FOR JOINING AND/OR REPAIRING SUBSTRATES OF TITANIUM ALUMINIDE ALLOYS
    1.
    发明公开
    METHOD FOR JOINING AND/OR REPAIRING SUBSTRATES OF TITANIUM ALUMINIDE ALLOYS 审中-公开

    公开(公告)号：EP3326746A1

    公开(公告)日：2018-05-30

    申请号：EP16200819.7

    申请日：2016-11-25

    Applicant: Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH

    Inventor： Pyczak, Florian ,  Oehring, Michael ,  Lorenz, Uwe ,  Hauschildt, Katja

    IPC: B23K35/32 ,  B23K35/362 ,  B23K35/02 ,  C22C14/00 ,  B23P6/04

    CPC classification number: B23K35/325 ,  B23K1/19 ,  B23K35/0233 ,  B23K35/0244 ,  B23K35/362 ,  B23K2103/14 ,  C22C14/00

    Abstract: The present invention relates to a method of bonding two substrates of γ-titanium aluminide alloy at a faying surface, comprising the steps of applying a braze material of a titanium alloy consisting of from 10 to 35 at.% aluminum, from 5 to 30 at.% iron and/or nickel, and optionally other alloying elements present in the substrate material in quantities (at.%) up to their content in the substrate material, the remainder being titanium, at the faying surface of the substrates, and subjecting the substrates and braze material to an elevated temperature above the melting point of the braze material and below γ-solvus temperature of the γ-titanium aluminide alloy thereby joining the substrates by transient liquid phase bonding. Additionally the present invention relates to a method of bonding two substrates of γ-titanium aluminide alloy having a β-single phase region at elevated temperatures at a faying surface, comprising the steps of applying a braze material of a titanium alloy consisting of from 0 to 35 at.% aluminum, from 5 to 30 at.% iron and/or nickel, and optionally other alloying elements present in the substrate material in quantities (at.%) up to their content in the substrate material, the remainder being titanium, at the faying surface of the substrates, and subjecting the substrates and braze material to an elevated temperature in the β-single phase region of the substrate thereby joining the substrates by transient liquid phase bonding. The braze alloy is preferably present in form of a foil or a powder. If present as a powder, the braze alloy is preferably present in admixture with an organic welding flux.

    NEAR EUTECTIC COMPOSITION NICKEL BASE SANDWICH BRAZE FOIL
    8.
    发明公开
    NEAR EUTECTIC COMPOSITION NICKEL BASE SANDWICH BRAZE FOIL 审中-公开
    HARTGELÖTETESANDWICHFOLIE MIT爱尔兰NAHEZU EUTEKTISCHEN ZUSAMMENSETZUNG AUF NICKELBASIS

    公开(公告)号：EP2969377A1

    公开(公告)日：2016-01-20

    申请号：EP14705653.5

    申请日：2014-02-03

    Applicant: Siemens Energy, Inc.

    Inventor： OZBAYSAL, Kazim ,  KAMEL, Ahmed

    IPC: B23K35/30 ,  B23K35/32 ,  B23K35/02 ,  C22C19/05

    CPC classification number: B23K35/0238 ,  B23K35/0233 ,  B23K35/3033 ,  B23K35/304 ,  B23K35/32 ,  B23K35/325 ,  C22C19/007 ,  C22C19/05 ,  C22C19/057 ,  Y10T428/12438

    Abstract: A braze foil (10) formed of a plurality of layers (12, 14, 16) of differing compositions wherein a combined melt of the foil has a desired braze composition, and wherein each layer is sufficiently ductile to be rolled into foil form, even though the desired braze composition is too strong or brittle to be fabricated as a foil Each interface (18,20) between layers may establish a near eutectic composition for initiating melting at the eutectic temperature, with the layer thicknesses selected so that as melting progresses away from the interfaces, the near eutectic composition is maintained within the melt puddles For certain nickel-based superalloy brazing applications, a foil having a layer of pure titanium, hafnium or zirconium may be sandwiched between respective alloy layers of 5-22% chrome-balance nickel

    Abstract translation: 由不同组成的多个层（12,14,16）形成的钎焊箔（10），其中所述箔的组合熔体具有期望的钎焊组合物，并且其中每个层具有足够的延性以轧制成箔形式，甚至 尽管期望的钎焊组合物太强或不易于制成箔的层之间的每个界面（18,20）可以建立近共晶组合物，用于在共晶温度下引发熔融，其中选择层厚度使得当熔融进行时 对于某些镍基超级合金钎焊应用，具有纯钛，铪或锆的层的箔可夹在5-22％铬平衡的相应合金层之间 镍

    CLADDING OF ALLOYS USING CORED FEED MATERIAL COMPRISING POWDERED FLUX AND METAL
    9.
    发明公开
    CLADDING OF ALLOYS USING CORED FEED MATERIAL COMPRISING POWDERED FLUX AND METAL 有权
    面板的合金借助与粉末通量和金属带馅饲料原料

    公开(公告)号：EP2950959A2

    公开(公告)日：2015-12-09

    申请号：EP14704997.7

    申请日：2014-01-31

    Applicant: Siemens Energy, Inc.

    Inventor： BRUCK, Gerald J. ,  KAMEL, Ahmed

    IPC: B23K9/04 ,  B23K35/30 ,  B23K10/02 ,  B23K26/14 ,  B23K26/34 ,  C23C24/10

    CPC classification number: B23K26/34 ,  B23K25/005 ,  B23K35/0244 ,  B23K35/0266 ,  B23K35/0272 ,  B23K35/3033 ,  B23K35/304 ,  B23K35/322 ,  B23K35/325 ,  B23K35/327 ,  B23K35/362 ,  B23K35/383 ,  C23C24/106

    Abstract: A metal cladding process utilizing a feed material (66) formed as a hollow sheath (68) containing a powdered core (70) including powdered metal and powdered flux material. The powdered metal and flux may have overlapping mesh size ranges. The sheath may be an extrudable subset of elements of a desired superalloy cladding material, with the powdered metal and powdered flux materials complementing the sheath to form the desired superalloy material when melted. The powdered metal may include an excess of titanium to compensate for a reaction of titanium with oxygen or carbon dioxide in a shielding gas. Heat for melting may be provided by an energy beam (64) or by utilizing the feed material as an electrode in a cold metal arc welding torch (54).

    Abstract translation: 金属包层过程利用形成为中空的护套（68），其包含粉末状的芯（70）包括金属粉末和粉末状熔剂材料的进料材料（66）。 粉末金属和焊剂可以具有重叠的网目尺寸范围。 该护套可以是希望的超级合金包覆材料元件的挤出子集，与粉状金属和补充护套以形成所需的超合金材料熔化时粉末熔剂材料。 金属粉末可以包括在过量的钛的，以补偿钛与氧气或二氧化碳保护气体中进行反应。 熔化热可以通过在能量束（64）或通过利用进料材料来提供，以在冷金属电弧焊焊枪（54）的电极。

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