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    • 5. 发明授权
    • Oxide strengthened molybdenum-rhenium alloy
    • 氧化物加强了钼 - 铼合金
    • US6102979A
    • 2000-08-15
    • US143055
    • 1998-08-28
    • Robert BiancoR. William Buckman, Jr.
    • Robert BiancoR. William Buckman, Jr.
    • C22C1/10C22C29/12
    • C22C1/1026B22F2998/10
    • Provided is a method of making an ODS molybdenum-rhenium alloy which includes the steps of:(a) forming a slurry containing molybdenum oxide and a metal salt dispersed in an aqueous medium, the metal salt being selected from nitrates or acetates of lanthanum, cerium or thorium;(b) heating the slurry in the presence of hydrogen to form a molybdenum powder comprising molybdenum and an oxide of the metal salt;(c) mixing rhenium powder with the molybdenum powder to form a molybdenum-rhenium powder;(d) pressing the molybdenum-rhenium powder to form a molybdenum-rhenium compact;(e) sintering the molybdenum-rhenium compact in hydrogen or under a vacuum to form a molybdenum-rhenium ingot; and(f) compacting the molybdenum-rhenium ingot to reduce the cross-sectional area of the molybdenum-rhenium ingot and form a molybdenum-rhenium alloy containing said metal oxide.The present invention also provides an ODS molybdenum-rhenium alloy made by the method. A preferred Mo--Re-ODS alloy contains 7-14 weight % rhenium and 2-4 volume % lanthanum oxide.
    • 提供了一种制备ODS钼 - 铼合金的方法,其包括以下步骤:(a)形成含有分散在水性介质中的氧化钼和金属盐的浆料,所述金属盐选自镧,铈的硝酸盐或乙酸盐 或钍; (b)在氢气存在下加热浆料以形成包含钼和金属盐氧化物的钼粉末; (c)将铼粉末与钼粉末混合以形成钼 - 铼粉末; (d)挤压钼 - 铼粉末以形成钼 - 铼压块; (e)在氢气或真空下烧结钼 - 铼压块以形成钼 - 铼锭; 和(f)压制钼 - 铼锭以减小钼 - 铼锭的横截面积并形成含有所述金属氧化物的钼 - 铼合金。 本发明还提供了通过该方法制备的ODS钼 - 铼合金。 优选的Mo-Re-ODS合金含有7-14重量%的铼和2-4体积%的氧化镧。