Manufacturing Method for Tubular Products made of Zirconium-Based Alloy

    公开(公告)号:US20220316041A1

    公开(公告)日:2022-10-06

    申请号:US17257283

    申请日:2019-12-26

    摘要: Manufacturing method for tubular products made of zirconium-based alloy includes melting an ingot by multiple vacuum arc remelting, mechanical processing of the ingot, heating, multi-stage hot forging of the ingot for production of a forged piece, subsequent mechanical processing of the forged piece for production of the a round-profile blank, manufacturing of tubular billets, their quenching and tempering, application of a protective coating, heating to a hot pressing temperature, hot pressing, removal of the protective coating, vacuum thermal treatment, multiple cold rolling steps in order to produce tubular products, with intermediate vacuum thermal treatment after each cold rolling, and a final vacuum thermal treatment being carried out at a final size with subsequent final finishing operations. The tubular products can be used as the structural components of a core in water-cooled nuclear reactors. The method can provide increased processibility, high strength, and corrosion resistance of tubular products.

    Method of Manufacturing Zirconium Alloy Tubular Products

    公开(公告)号:US20220316040A1

    公开(公告)日:2022-10-06

    申请号:US17059989

    申请日:2019-12-26

    摘要: Method of manufacturing zirconium alloy tubular products containing (wt. %): niobium—0.9-1.7; iron—0.04-0.10; oxygen—0.03-0.10; silicon—less than 0.02, carbon—less than 0.02, and zirconium—as the base of the alloy. This includes an ingot melting by multiple vacuum arc remelting, mechanical processing of the ingot, heating, hot working of the ingot, subsequent mechanical processing for the production of tubular billets, heat treatment of the tubular billets, application of a protective coating and heating to a hot pressing temperature, hot pressing, removal of the protective coating, multi-stage cold radial forging, vacuum thermal treatment, multiple cold rolling runs with a total deformation degree of 50-80-% per run and a tubular coefficient of Q=1.0-2.7 with intermediate vacuum thermal treatment after each cold rolling operation, and final vacuum thermal treatment of the resulting tubular products carried out at the final size with subsequent final finishing operations.

    ZIRCONIUM-BASED METAL GLASS ALLOY
    10.
    发明申请

    公开(公告)号:US20210381083A1

    公开(公告)日:2021-12-09

    申请号:US17129262

    申请日:2020-12-21

    IPC分类号: C22C16/00

    摘要: According to the present invention, provided is a zirconium-based metal glass alloy including, in atomic %, 62% or more and 67% or less of zirconium (Zr), 1% or more and 5% or less of niobium (Nb), 0.5% or more and 2% or less of titanium (Ti), 12% or more and 15% or less of copper (Cu), 8% or more and 10% or less of nickel (Ni), and 7.5% or more and 8.5% or less of aluminum (Al), the zirconium-based metal glass alloy having a composition represented by Zr62-67Nb1-5Ti0.5-2Cu12-15Ni8-10Al7.5-8.5.