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    • 56. 发明公开
    • Process for producing amorphous alloy material
    • 维尔法赫恩·赫斯特伦·冯·阿莫林,冶金工程师。
    • EP0532038A1
    • 1993-03-17
    • EP92115598.2
    • 1992-09-11
    • Masumoto, TsuyoshiInoue, AkihisaYKK CORPORATION
    • Masumoto, TsuyoshiInoue, AkihisaNagahora, JunichiKita, Kazuhiko
    • C22C1/00C22F1/00C21D6/00
    • C22F1/186B22F3/006C21D2201/03C22C1/00C22F1/00C22F1/04C22F1/06C22F1/18
    • A process for producing an amorphous alloy material characterized by imparting ductility to an amorphous alloy having a supercooled liquid region by giving a prescribed amount of strain at a prescribed strain rate to the alloy in the glass transition temperature of the alloy. The amorphous alloy may be in the form of spherical or irregular-shaped powders or thin ribbons or in the form of primary consolidated shapes thereof or an amorphous alloy casting. The amount of strain and strain rate are preferably 50% or greater and 2 x 10- 2 /sec or higher, respectively, and the worked amorphous alloy material is preferably allowed to cool in a furnace or spontaneously. Suitable examples of the amorphous alloy to be employed include AI-TM-Ln, Mg-TM-Ln, Zr-TM-Al and Hf-TM-Al alloys, wherein TM is a transition metal element and Ln is a rare earth metal element. The thus obtained amorphous alloy is greatly improved in the prevention of embrittlement in hot working peculiar to the alloy.
    • 一种非晶态合金材料的制造方法,其特征在于,在合金的玻璃化转变温度下,通过在规定的应变速度下向合金赋予规定量的应变赋予具有过冷液体区域的非晶质合金的延展性。 非晶合金可以是球形或不规则形状的粉末或薄带的形式,或者是其主要固结形状或非晶合金铸件的形式。 应变量和应变速率分别优选为50%以上且2×10 2 /秒以上,加工后的非晶态合金材料优选在炉中自发冷却。 所使用的非晶合金的合适实例包括Al-TM-Ln,Mg-TM-Ln,Zr-TM-Al和Hf-TM-Al合金,其中TM是过渡金属元素,Ln是稀土金属元素 。 由此获得的非晶合金在防止合金特有的热加工中脆化方面大大提高。
    • 59. 发明公开
    • Method for producing an elongate tungsten article
    • Herstellungsverfahrenfürein langgestrecktes Produkt aus Wolframhartmetall。
    • EP0209632A2
    • 1987-01-28
    • EP86103186.2
    • 1986-03-10
    • GTE Products Corporation
    • Mullendore, James A.Spencer, James R.
    • B21B3/00
    • B22F3/18B21B1/20B21B3/00B21B2003/006C22C1/045C22F1/18
    • An article of tungsten heavy alloy material has essentially elongated tungsten grains, the alloy material comprising tungsten, nickel, and iron, the elongated tungsten grains having a length to diameter ratio of at least about 2 to 1.
      A method for producing the above article involves rolling a pressed and sintered body of tungsten heavy alloy material comprising tungsten, iron, and nickel in a tandem rolling mill having a succession of roll stands. Each stand consisting essentially of three rolls positioned at about 120° to each other so that the gap between the rolls is a triangle, each stand being rotated about 180° with respect to the adjacent roll stands. The rolling is done at a sufficient temperature to produce the article which has essentially elongated tungsten grains.
    • 一种钨重合金材料的制品具有基本上细长的钨颗粒,该合金材料包括钨,镍和铁,长度与直径之比为至少约2比1的细长钨颗粒。制造上述制品的方法涉及 在具有一系列辊架的串列式轧机中轧制包含钨,铁和镍的钨重合金材料的压制和烧结体。 每个支架基本上由相互之间约120°的三个辊组成,使得辊之间的间隙为三角形,每个支架相对于相邻的轧辊架转动约180度。 在足够的温度下进行轧制以制造具有基本上细长的钨颗粒的制品。