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    Method of fabrication of free standing shape memory alloy thin film
    1.
    发明授权
    Method of fabrication of free standing shape memory alloy thin film 有权
    自立式记忆合金薄膜的制造方法

    公开(公告)号：US06790298B2

    公开(公告)日：2004-09-14

    申请号：US09902856

    申请日：2001-07-10

    申请人： A. David Johnson ,  Vikas Galhotra ,  Vikas Gupta

    发明人： A. David Johnson ,  Vikas Galhotra ,  Vikas Gupta

    IPC分类号： C22C4500

    CPC分类号： A61L31/088 ,  A61L31/14 ,  A61L2400/16 ,  C23C14/0005 ,  C23C14/165 ,  C23F1/04

    摘要： Methods of fabricating a free standing thin film of shape memory alloy material, and products made by the methods. A sacrificial layer of a metallic material is deposited onto the surface of a substrate. Then an amorphous shape memory alloy is sputter deposited onto the outer surface of the sacrificial layer. The sacrificial layer is etched away, leaving the thin film free standing, that is separated from the substrate. The thin film is annealed by heating into a crystalline state, with the annealing step carried out either after the film has been separated from the substrate, or while remaining attached to it.

    摘要翻译： 制造形状记忆合金材料的自立薄膜的方法，以及由该方法制成的产品。 将金属材料的牺牲层沉积在基底的表面上。 然后将非晶态记忆合金溅射沉积到牺牲层的外表面上。 牺牲层被蚀刻掉，使薄膜自由站立，从衬底分离。 该薄膜通过加热退火至结晶状态，退火步骤是在薄膜从基材分离出之后进行的，或者在保持附着于其上时进行。

    Method for producing an amorphous alloy having excellent strength
    2.
    发明授权
    Method for producing an amorphous alloy having excellent strength 失效
    具有优异强度的非晶态合金的制造方法

    公开(公告)号：US06582538B1

    公开(公告)日：2003-06-24

    申请号：US09486948

    申请日：2000-03-06

    申请人： Akihisa Inoue ,  Tao Zhang ,  Nobuyuki Nishiyama

    发明人： Akihisa Inoue ,  Tao Zhang ,  Nobuyuki Nishiyama

    IPC分类号： C22C4500

    CPC分类号： C22C45/10 ,  B22D18/00 ,  C22C1/02 ,  C22C33/003

    摘要： A molten alloy having an amorphous forming ability is pressure-solidified at a pressure exceeding one atmospheric pressure to eliminate casting defects. The cooling rate during the solidification is adjusted to disperse fine crystals having a mean crystal grain diameter of 1 nm to 50 &mgr;m and a volume percentage of 5 to 40% in an amorphous alloy ingot. In this way, a uniform residual compressive stress is imparted in the amorphous alloy ingot. Furthermore, the amorphous ingot produced by this method can be strengthened by heating it at a constant temperature rising rate to infiltrate at least one of boron, carbon, oxygen, nitrogen and fluorine from the surface of the amorphous alloy ingot in a supercooled liquid state before crystallization, to thereby precipitate a high melting point compound thereof with an element forming the amorphous alloy within the alloy ingot so as to strength the alloy.

    摘要翻译： 具有非晶形成能力的熔融合金在超过一个大气压的压力下被压固以消除铸造缺陷。 调整固化时的冷却速度，使非晶质合金锭中的平均结晶粒径为1nm〜50μm，体积率为5〜40％的微细晶体分散。 以这种方式，在非晶合金锭中赋予均匀的残余压应力。 此外，可以通过以恒定的升温速度对其加热，从而从非晶合金锭的表面以过冷液体状态渗透至少一种硼，碳，氧，氮和氟中的任一种来加强由该方法生产的非晶锭， 结晶，从而在合金锭内将形成非晶质合金的元素的高熔点化合物沉淀，从而使合金强化。

    Brazing foil performs and their use in the manufacture of heat exchangers
    3.
    发明授权
    Brazing foil performs and their use in the manufacture of heat exchangers 有权
    钎焊箔在制造热交换器中的应用和应用

    公开(公告)号：US06551421B1

    公开(公告)日：2003-04-22

    申请号：US09716568

    申请日：2000-11-20

    申请人： Anatol Rabinkin

    发明人： Anatol Rabinkin

    IPC分类号： C22C4500

    CPC分类号： F28F9/18 ,  B23K35/0233 ,  B23K35/304 ,  Y10T428/12431

    摘要： Preformed articles of an amorphous metal foil which are particularly adapted to be used in the manufacture of an assembly having brazed joints, especially a heat exchanger. Methods for the manufacture of a heat exchanger or other assembly having brazed joints, which method includes the process step of providing a preformed article formed of a brazing foil composition of an amorphous metal alloy in contact with one or more elements of said heat exchanger or other assembly.

    摘要翻译： 非晶金属箔的预成型制品特别适用于制造具有钎焊接头的组件，特别是热交换器。 用于制造具有钎焊接头的热交换器或其它组件的方法，该方法包括提供由与所述热交换器的一个或多个元件接触的非晶态金属合金的钎焊箔组合物形成的预制制品的方法步骤 部件。

    Method for producing amorphous alloy ribbon, and method for producing nano-crystalline alloy ribbon with same
    4.
    发明授权
    Method for producing amorphous alloy ribbon, and method for producing nano-crystalline alloy ribbon with same 失效
    制造非晶态合金带的方法，以及制造其的纳米晶合金带的制造方法

    公开(公告)号：US06749700B2

    公开(公告)日：2004-06-15

    申请号：US10073148

    申请日：2002-02-13

    申请人： Jun Sunakawa ,  Yoshio Bizen ,  Michihiro Nagao

    发明人： Jun Sunakawa ,  Yoshio Bizen ,  Michihiro Nagao

    IPC分类号： C22C4500

    CPC分类号： C22C33/003 ,  C22C45/02

    摘要： An amorphous alloy ribbon free from embrittlement and crystallization and having excellent surface conditions and shape in edge portions is produced by (a) preparing an alloy melt having a composition comprising 13 atomic % or less of B and 15 atomic % or less of at least one selected from the group consisting of transition elements of Groups 4A, 5A and 6A, the balance being substantially Fe; (b) ejecting the alloy melt at a temperature from the melting point of the alloy +50° C. to the melting point of the alloy +250° C. through a nozzle onto the cooling roll rotating at a peripheral speed of 35 m/second or less, a distance between a tip end of the nozzle and the cooling roll being 200 &mgr;m or less; (c) starting to supply a gas based on CO2 to the alloy melt after the surface temperature of the cooling roll has become substantially constant; and (d) grinding the cooling roll while supplying the gas based on CO2.

    摘要翻译： 通过（a）制备具有包含13原子％以下的B和15原子％以下的组成的至少一种的合金熔体，制造不具有脆化和结晶并且具有优异的表面状态和边缘部分形状的无定形合金带 选自由4A，5A和6A族的过渡元素组成的组，余量基本上为Fe; （b）在合金+ 50℃的熔点到合金+ 250℃的熔点的温度下通过喷嘴将合金熔体喷射到以35m /分钟的圆周速度旋转的冷却辊上， 第二或更小，喷嘴的尖端和冷却辊之间的距离为200μm或更小; （c）在冷却辊的表面温度变得基本恒定之后，开始向合金熔体供应基于CO 2的气体; 和（d）在供应基于CO 2的气体的同时研磨冷却辊。

    Zirconium system amorphous alloy
    6.
    发明授权
    Zirconium system amorphous alloy 有权
    锆系非晶合金

    公开(公告)号：US06652673B1

    公开(公告)日：2003-11-25

    申请号：US09153309

    申请日：1998-09-15

    申请人： Akihisa Inoue ,  Tao Zhang ,  Masahide Onuki ,  Tetsuo Yamaguchi

    发明人： Akihisa Inoue ,  Tao Zhang ,  Masahide Onuki ,  Tetsuo Yamaguchi

    IPC分类号： C22C4500

    CPC分类号： C22C45/10

    摘要： A zirconium system amorphous alloy having a composition expressed by a general formula Zr100-X-Y-a-b Tix Aly Cua Nib wherein a, b, X, and Y in the formula represent atomic percentage, and fulfill X 5, Y

    摘要翻译： 具有由通式Zr100-XYab Tix Aly Cua Nib表示的组成的锆系非晶合金，其中式中的a，b，X和Y表示原子百分比，并且满足X <10，Y> 5，Y < - （ 1/2）X + 35 / 2,15 <= a <= 25和5 <= b <= 15，锆系非晶合金具有大于合金体积的50体积％的非晶相。

    In-situ ductile metal/bulk metallic glass matrix composites formed by chemical partitioning
    8.
    发明授权
    In-situ ductile metal/bulk metallic glass matrix composites formed by chemical partitioning 有权
    通过化学分配形成的原位延性金属/块状金属玻璃基体复合材料

    公开(公告)号：US06709536B1

    公开(公告)日：2004-03-23

    申请号：US09890480

    申请日：2002-04-02

    申请人： Choong Paul Kim ,  Charles C. Hays ,  William L. Johnson

    发明人： Choong Paul Kim ,  Charles C. Hays ,  William L. Johnson

    IPC分类号： C22C4500

    CPC分类号： C22C16/00 ,  C22C1/002 ,  C22C45/10

    摘要： A composite metal object comprises ductile crystalline metal particles in an amorphous metal matrix. An alloy is heated above its liquidus temperature. Upon cooling from the high temperature melt, the alloy chemically partitions, forming dendrites in the melt. Upon cooling the remaining liquid below the glass transition temperature it freezes to the amorphous state, producing a two-phase microstructure containing crystalline particles in an amorphous metal matrix. The ductile metal particles have a size in the range of from 0.1 to 15 micrometers and spacing in the range of from 0.1 to 20 micrometers. Preferably, the particle size is in the range of from 0.5 to 8 micrometers and spacing is in the range of from 1 to 10 micrometers. The volume proportion of particles is in the range of from 5 to 50% and preferably 15 to 35%. Differential cooling can produce oriented dendrites of ductile metal phase in an amorphous matrix. Examples are given in the Zr—Ti—Cu—Ni—Be alloy bulk glass forming system with added niobium.

    摘要翻译： 复合金属物体包括无定形金属基质中的延性结晶金属颗粒。 将合金加热至液相线温度以上。 在从高温熔体冷却时，合金化学分隔，在熔体中形成枝晶。 将剩余的液体冷却至低于玻璃化转变温度时，将其冻结至非晶状态，产生在非晶态金属基质中含有结晶颗粒的两相微结构。 延性金属颗粒的尺寸范围为0.1至15微米，间距为0.1-20微米。 优选地，粒度在0.5至8微米的范围内，并且间距在1至10微米的范围内。 颗粒的体积比例在5至50％，优选15至35％的范围内。 差分冷却可以在无定形基质中产生延性金属相的取向树枝状晶体。 在具有添加铌的Zr-Ti-Cu-Ni-Be合金块状玻璃形成系统中给出了实施例。

    Nanocrystal dispersed amorphous alloys
    10.
    发明授权
    Nanocrystal dispersed amorphous alloys 有权
    纳米晶分散非晶合金

    公开(公告)号：US06261386B1

    公开(公告)日：2001-07-17

    申请号：US09171749

    申请日：1998-10-21

    申请人： John H. Perepezko ,  Donald R. Allen ,  James C. Foley

    发明人： John H. Perepezko ,  Donald R. Allen ,  James C. Foley

    IPC分类号： C22C4500

    CPC分类号： C22C33/003 ,  C22C45/00 ,  C22C45/02 ,  C22C45/08

    摘要： Compositions and methods for obtaining nanocrystal dispersed amorphous alloys are described. A composition includes an amorphous matrix forming element (e.g., Al or Fe); at least one transition metal element; and at least one crystallizing agent that is insoluble in the resulting amorphous matrix. During devitrification, the crystallizing agent causes the formation of a high density nanocrystal dispersion. The compositions and methods provide advantages in that materials with superior properties are provided.

    摘要翻译： 描述了获得纳米晶体分散非晶合金的组合物和方法。 组合物包括无定形基质形成元素（例如Al或Fe）; 至少一种过渡金属元素; 和至少一种不溶于所得无定形基质的结晶剂。 在失透期间，结晶剂导致形成高密度纳米晶体分散体。 组合物和方法提供了具有优异性能的材料的优点。