METHOD OF FORMING A UNIQUE ALLOY WELD WIRE
    1.
    发明申请

    公开(公告)号:WO2019212530A1

    公开(公告)日:2019-11-07

    申请号:PCT/US2018/030397

    申请日:2018-05-01

    摘要: A method of forming alloy welding consumables for use in welding a base material includes providing a plurality of first welding consumables having a first diameter and a first chemical composition that closely matches the base material to be welded and providing a plurality of second welding consumables having the first diameter and a second chemical composition that is an alloy that is different from that of the base material. The method further includes winding a first quantity of the first welding consumables and a second quantity of the second welding consumables into a wound consumable having a chemical composition when welded that is a mixture of the base material and the alloy having a ratio equal to the ratio of the first quantity to the second quantity.

    NICKEL BASED SUPERALLOY BRAZE FILLER
    3.
    发明申请

    公开(公告)号:WO2019212529A1

    公开(公告)日:2019-11-07

    申请号:PCT/US2018/030385

    申请日:2018-05-01

    摘要: A weld filler is proposed which significantly improves the weldability of some nickel-based superalloys and includes the following constituents (in wt%): 11.2% - 15.6% chromium (Cr), 9.6% - 11.4% cobalt (Co) 2.4% - 5.0%, molybdenum (Mo) 0.1% - 3.3%,4.4%-7.5% tungsten (W), 1.4%-2.6% tantalum (Ta), 3.0%-4.8% aluminum (Al), 0.4-1.0% titanium (Ti), 0.07% - 0.08% carbon (C), 0.5% - 1.4% hafnium (Hf), trace elements, and remainder nickel. A method is also provided. The method includes providing a nickel-based substrate to weld, applying a ductile weld filler having a closely matched coefficient of thermal expansion to a surface of the substrate, applying heat to melt the weld filler to form molten weld filler, welding the substrate with the weld filler at ambient temperature, and resolidifying the molten weld filler to form a solidified joint material.