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    Superplastic aluminum alloy and process for producing same
    3.
    发明授权
    Superplastic aluminum alloy and process for producing same 失效
    超塑性铝合金及其制造方法

    公开(公告)号：US6056835A

    公开(公告)日：2000-05-02

    申请号：US186160

    申请日：1994-01-25

    申请人： Yoshiharu Miyake ,  Tetsuya Suganuma

    发明人： Yoshiharu Miyake ,  Tetsuya Suganuma

    IPC分类号： C22C21/00 ,  C22C21/06 ,  C22F1/047

    CPC分类号： C22C21/06 ,  C22F1/047 ,  Y10S420/902

    摘要： The present invention relates to a process for producing a superplastic aluminum alloy capable of being used for plastic working such as extrusion, forging and rolling. An object of the present invention is to provide an ingot-made high speed superplastic aluminum alloy in which superplasticity is developed at a strain rate higher than that of conventional static recrystallization type superplastic aluminum alloys, and a process for producing the same. The superplastic aluminum alloy of the invention has structure which is obtained by adding to a basic alloy containing from at least 4.0 to 15% by weight of Mg and from 0.1 to 1.0% by weight of one or more elements selected from the group consisting of Mm, Zr, V, W, Ti, Ni, Nb, Ca, Co, Mo and Ta, and further selective elements of Sc, Cu. Li, Sn, In and Cd, which contains from 0.1 to 4.0% by volume fraction of spheroidal precipitates of intermetallic compounds having a particle size from 10 to 200 nm, and which has a mean grain size from 0.1 to 10 .mu.m.

    摘要翻译： 本发明涉及一种能够用于挤压，锻造和轧制等塑性加工的超塑性铝合金的制造方法。 本发明的目的是提供一种以比常规静态再结晶型超塑性铝合金高的应变速率显现超塑性的铸锭制造的高速超塑性铝合金及其制造方法。 本发明的超塑性铝合金具有通过添加至含有至少4.0〜15重量％的Mg和0.1〜1.0重量％的一种或多种选自Mm ，Zr，V，W，Ti，Ni，Nb，Ca，Co，Mo和Ta以及Sc，Cu的其他选择元素。 Li，Sn，In和Cd，其含有0.1〜4.0体积％的粒径为10〜200nm的金属间化合物的球状析出物，平均粒径为0.1〜10μm。

    Extended life SMA actuator
    4.
    发明授权
    Extended life SMA actuator 失效
    延长使用寿命的SMA执行器

    公开(公告)号：US5419788A

    公开(公告)日：1995-05-30

    申请号：US164901

    申请日：1993-12-10

    申请人： Paul E. Thoma ,  Ming-Yuan Kao ,  Dwight M. Schmitz

    发明人： Paul E. Thoma ,  Ming-Yuan Kao ,  Dwight M. Schmitz

    IPC分类号： C22F1/00 ,  C21D8/00

    CPC分类号： C22F1/006 ,  C21D2201/01 ,  Y10S420/902

    摘要： The present invention relates to a method for increasing the useful life of a shape memory alloy (SMA) actuator, wherein the SMA element contracts on heating and elongates on cooling under an applied stress and that property is used as an actuating technique. More specifically, the present invention relates to the cooling aspect of the cycle and maintaining a martensite strain on the actuator SMA element at less than about 3% by limiting the upper stress on the element. In the most preferred embodiment, the element is a ribbon actuator prepared from a nickel-titanium SMA alloy.

    摘要翻译： 本发明涉及一种用于增加形状记忆合金（SMA）致动器的使用寿命的方法，其中SMA元件在加热时收缩并在施加的应力下冷却时延伸，并且该特性用作致动技术。 更具体地，本发明涉及循环的冷却方面，并且通过限制元件上的上部应力来将致动器SMA元件上的马氏体应变维持在小于约3％。 在最优选的实施例中，元件是由镍 - 钛SMA合金制成的带状致动器。

    Method for superplastic forming of rapidly solidified magnesium base metal alloys
    5.
    发明授权
    Method for superplastic forming of rapidly solidified magnesium base metal alloys 失效
    快速凝固的镁基金属合金的超塑性成形方法

    公开(公告)号：US5078806A

    公开(公告)日：1992-01-07

    申请号：US481402

    申请日：1990-02-20

    申请人： Santosh K. Das ,  Chin-Fong Chang ,  Derek Raybould

    发明人： Santosh K. Das ,  Chin-Fong Chang ,  Derek Raybould

    IPC分类号： B21C23/00 ,  B21J5/00 ,  B22F3/00 ,  C22C1/04 ,  C22C23/02 ,  C22F1/06

    CPC分类号： C22F1/06 ,  B22F3/006 ,  C22C1/0408 ,  C22C23/02 ,  Y10S420/902

    摘要： A complex part composed of rapidly solidified magnesium base metal alloy is produced by superplastic forming at a temperature ranging from 160.degree. C. to 275.degree. C. and at a rate ranging from 0.00021 m/sec to 0.00001 mm/sec, to improve the formability thereof and allow forming to be conducted at lower temperature. The rapidly solidified magnesium based alloy has a composition consisting essentially of the formula Mg.sub.bal Al.sub.a Zn.sub.b X.sub.c, wherein X is at least one element selected from the group consisting of manganese, cerium, neodymium, praseodymium and yttrium, "a" ranges from 0 to about 15 atom percent, "b" ranges from 0 to about 4 atom percent and "c" ranges from about 0.2 to 3 atom percent, the balance being magnesium and incidental impurities, with the proviso that the sum of aluminum and zinc present ranges from about 2 to 15 atom percent. Such an alloy contains fine grain size and finely dispersed magnesium-, aluminum- rare earth intermetallic phases. When formed, the part exhibits good corrosion resistance together with high ultimate tensile strength and good ductility at room temperature, which properties are, in combination, far superior to those of conventional magnesium alloys. The part is suitable for application as a structural member in helicopters, missiles and air frames where good corrosion resistance in combination with high strength and ductility is important.

    摘要翻译： 由快速凝固的镁基金属合金构成的复合部分通过在160℃至275℃的温度和0.00021m / sec至0.00001mm / sec的范围内的超塑性成型制备，以提高成形性 并且允许成形在较低温度下进行。 快速凝固的镁基合金具有基本由式MgbalAlaZnbXc组成的组合物，其中X是选自锰，铈，钕，镨和钇中的至少一种元素，“a”为0至约15原子％ ，“b”为0至约4原子百分数，“c”为约0.2至3原子％，余量为镁和附带杂质，条件是存在的铝和锌的总和范围为约2至15 原子百分比。 这种合金含有细晶粒度和细分散的镁，铝 - 稀土金属间相。 当形成时，该部件在室温下表现出良好的耐腐蚀性以及高极限拉伸强度和良好的延展性，其组合远远优于传统的镁合金。 该部件适用于作为直升机，导弹和空气框架中的结构构件，其具有良好的耐腐蚀性以及高强度和延展性的重要性。

    Process for enhancing physical properties of aluminum-lithium workpieces
    7.
    发明授权
    Process for enhancing physical properties of aluminum-lithium workpieces 失效
    提高铝锂工件物理性能的方法

    公开(公告)号：US5019183A

    公开(公告)日：1991-05-28

    申请号：US411967

    申请日：1989-09-25

    申请人： Gardner R. Martin

    发明人： Gardner R. Martin

    IPC分类号： C22F1/04

    CPC分类号： C22F1/04 ,  Y10S420/902

    摘要： A process for enhancing the physical properties of superplastically formed and solution heat treated Aluminum-Lithium workpieces entails stretching near-net parts by from 2 to 10 percent at a specified temperature, followed by controlled aging.

    摘要翻译： 提高超塑性和固溶热处理铝锂工件的物理性能的方法需要在特定温度下将近网部分拉伸2％至10％，然后进行受控老化。

    Ornament and method of manufacturing the same
    8.
    发明授权
    Ornament and method of manufacturing the same 失效
    装饰品和制造方法相同

    公开(公告)号：US4943326A

    公开(公告)日：1990-07-24

    申请号：US260030

    申请日：1988-10-20

    申请人： Kazuhiro Ozawa ,  Etsuo Nakajima ,  Isao Yamaguchi

    发明人： Kazuhiro Ozawa ,  Etsuo Nakajima ,  Isao Yamaguchi

    IPC分类号： A44C5/00 ,  A44C27/00 ,  C22F1/00

    CPC分类号： A44C27/003 ,  C22F1/006 ,  C08L2201/12 ,  Y10S420/902

    摘要： An ornament is disclosed, which is characterized in that a metallic alloy wire provided with a characteristic to show the superelastic effect at room temperature by making the metallic texture Austenite phase is overlapped on both ends and formed into an approximately circular ring shape to form a wound ring. A method of manufacturing the same claimed is that a prime wire of Ni--Ti type alloy is submitted to the cold processing rating from 20 to 50% to form a round or angular wire rod, said wire rod is wound up around a stick or pipe with a fixed outer diameter and submitted to the heat treatment at 300.degree. to 600.degree. C. under restraint of both ends of wire rod to form a wound ring of approximately circular ring shape and simultaneously the superelastic effect is given to said ring at room temperature by making the metallic texture thereof Austenite phase.

    Superplastic aluminum alloys, alloy processes and component part formations thereof
    9.
    发明授权
    Superplastic aluminum alloys, alloy processes and component part formations thereof 失效
    超塑性铝合金，合金工艺及其部件组成

    公开(公告)号：US4867805A

    公开(公告)日：1989-09-19

    申请号：US151869

    申请日：1988-02-03

    申请人： Suphal P. Agrawal ,  Bennie R. Ward

    发明人： Suphal P. Agrawal ,  Bennie R. Ward

    IPC分类号： C22C1/04 ,  C22C21/00 ,  C22F1/04 ,  C22F1/053 ,  C22F1/057

    CPC分类号： C22C21/00 ,  C22C1/0416 ,  C22F1/04 ,  C22F1/053 ,  C22F1/057 ,  Y10S420/902

    摘要： Improved superplastic aluminum alloys are formulated to contain less than 0.05 weight percent each of iron and silicon based on the total weight of the superplastic aluminum alloy. Advantageously these two elements are present at levels of 0.03 weight percent or below, preferably 0.01 weight percent or below. Advantageous superplastic forming properties are achieved with these low iron, low silicon alloys. Further advantageous superplastic forming properties are achieved by subjecting aluminum alloys to a thermomechanical treatment followed by a rapid recrystallization-anneal treatment as, for instance, a recrystallization-anneal treatment utilizing a molten salt bath. When these formulations and processes are practiced alone, in combination with each other or together with cavitation supression improvements in superplastic forming of component parts are achieved.

    摘要翻译： 基于超塑性铝合金的总重量，改进的超塑性铝合金被配制成含有小于0.05重量％的铁和硅。 有利地，这两种元素的含量为0.03重量％以下，优选为0.01重量％以下。 这些低铁，低硅合金可实现有利的超塑性成形性能。 通过对铝合金进行热机械处理，然后进行快速再结晶退火处理，例如利用熔融盐浴的再结晶退火处理，可实现进一步有利的超塑性成形性能。 当这些制剂和方法单独实施时，可以相互组合或与气蚀抑制相结合，从而实现组分部件的超塑性成型改进。

    Process for manufacturing a fine-grained recrystallized sheet
    10.
    发明授权
    Process for manufacturing a fine-grained recrystallized sheet 失效
    用于制造细粒度再结晶薄板的方法

    公开(公告)号：US4797164A

    公开(公告)日：1989-01-10

    申请号：US99746

    申请日：1987-09-22

    申请人： Gunter Hollrigl ,  Pedro Rodrigues

    发明人： Gunter Hollrigl ,  Pedro Rodrigues

    IPC分类号： C22F1/04 ,  C22F1/053 ,  C22F1/057

    CPC分类号： C22F1/057 ,  C22F1/04 ,  C22F1/053 ,  Y10S420/902

    摘要： In a process for manufacturing a fine-grained recrystallized sheet of heat-treatable i.e. age-hardenable aluminum alloy containing an addition of at least one of the elements Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W amounting in total to 0.08-1.50%, the alloy is brought into a condition A in which the alloying elements that lead to age-hardening and the above mentioned additive elements are, at least for the greater part, in solid solution, following which in step B the incoherent hardening phases are precipitated out in a temperature range between the solvus T.sub.gps and the solvus T.sub.s, and in a subsequent step C the aluminides of the above mentioned elements are precipitated as a very dense uniform dispersion by heating in a temperature range between 300.degree. C. and T.sub.s -30.degree. C., whereby any deformation by rolling may take place between condition A and step C at temperatures not higher than T.sub.s -30.degree. C., and in which process the temperature of the sheet below a thickness or 2.5 xd does not exceed 200.degree. C., and the sheet at thickness d is heated to a recrystallization treatment D such that the heating rate is at least 20.degree. C./s until above the recrystallization threshold.

    摘要翻译： 在可热处理的即可老化的铝合金的细晶粒再结晶薄板的制造方法中，其中添加至少一种元素Ti，Zr，Hf，V，Nb，Ta，Cr，Mo，W中的至少一种元素， 总计为0.08-1.50％，合金达到条件A，其中导致时效硬化的合金元素和上述添加元素至少大部分为固溶体，随后在步骤B中 非线性硬化相在固溶体Tgps和溶剂Ts之间的温度范围内析出，在随后的步骤C中，上述元素的铝化物通过在300℃的温度范围内加热而沉淀为非常致密的均匀分散体 C.和Ts-30℃，由此在不高于Ts-30℃的温度下，在条件A和步骤C之间可能发生轧制变形，在该过程中，片材的温度低于厚度或2.5 xd不超过 200℃，将厚度为d的片材加热至再结晶处理D，使得加热速率至少为20℃/ s，直到再结晶阈值以上为止。