METHOD OF JOINING TWO DISSIMILAR ALLOYS AND COMPOSITE ARTICLES INCLUDING THE SAME

    公开(公告)号:US20240316636A1

    公开(公告)日:2024-09-26

    申请号:US18606129

    申请日:2024-03-15

    申请人: UT-Battelle, LLC

    摘要: A composite article is provided. The composite article includes a first portion comprising a first alloy having a first composition, and a second portion comprising a second alloy having a second composition. The second composition is different than the first composition. A transition portion joins the first portion to the second portion, and comprises a transition material having a composition that is different than both the first composition of the first alloy and the second composition of the second alloy. The transition portion includes only the transition material or a compositional gradient. The first alloy may be a high-strength material, and the second alloy may be an extreme-temperature material, or vice versa. The transition material may be a Ti-based alloy, a refractory element, or a refractory alloy other than a Nb-based alloy. A method of fabricating the composite article and a method of joining two dissimilar alloys are also provided.

    COMPOSITE MEMBER, PRODUCT, AND METHOD FOR PRODUCING COMPOSITE MEMBER

    公开(公告)号:US20240157440A1

    公开(公告)日:2024-05-16

    申请号:US18284290

    申请日:2022-03-23

    申请人: Proterial, Ltd.

    IPC分类号: B22F7/02

    CPC分类号: B22F7/02

    摘要: The present invention provides a composite member, a product, and a method for producing a composite member that make it possible to efficiently improve properties of a member against a load that is not uniform. Provided is a composite member comprising a base material that is made of an alloy, and two or more enhanced-property sections that each include an alloy of a different composition from that of the base material and are disposed so as to be continuous with and integrated with the base material.

    Method for manufacturing powder magnetic core

    公开(公告)号:US11901117B2

    公开(公告)日:2024-02-13

    申请号:US17343941

    申请日:2021-06-10

    摘要: A method for manufacturing a powder magnetic core, the method including: forming a soft magnetic powder (SMP) layer by putting an SMP having a surface on which an insulating coating film is formed into a space surrounded by a lower punch and a die; forming a pressed powder by compressing the SMP layer in the die by the lower punch and an upper punch; and causing the pressed powder and the die to slide relative to each other and then removing the pressed powder from the die is provided. In forming the SMP layer, a different powder different from the SMP is put into the space before and after the SMP is put into the space and a different powder layer having a spring back rate higher than that of the SMP layer by 0.6-1.1% is formed on upper and lower sides of the SMP layer.