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    Aluminum superalloys for use in high temperature applications
    5.
    发明授权
    Aluminum superalloys for use in high temperature applications 有权
    用于高温应用的铝合金

    公开(公告)号：US09453272B2

    公开(公告)日：2016-09-27

    申请号：US14645654

    申请日：2015-03-12

    申请人： NanoAL LLC ,  Northwestern University

    发明人： Nhon Q Vo ,  David N Seidman ,  David C Dunand

    IPC分类号： C22C21/02 ,  C22C21/06 ,  C22F1/04 ,  C22C21/00 ,  C22C1/02

    CPC分类号： C22F1/04 ,  C22C1/026 ,  C22C21/00 ,  C22C21/02

    摘要： Aluminum-zirconium and aluminum-zirconium-lanthanide superalloys are described that can be used in high temperature, high stress and a variety of other applications. The lanthanide is preferably holmium, erbium, thulium or ytterbium, most preferably erbium. Also, methods of making the aforementioned alloys are disclosed. The superalloys, which have commercially-suitable hardness at temperatures above about 220° C., include nanoscale Al3Zr precipitates and optionally nanoscale Al3Er precipitates and nanoscale Al3(Zr,Er) precipitates that create a high-strength alloy capable of withstanding intense heat conditions. These nanoscale precipitates have a L12-structure in α-Al(f.c.c.) matrix, an average diameter of less than about 20 nanometers (“nm”), preferably less than about 10 nm, and more preferably about 4-6 nm and a high number density, which for example, is larger than about 1021 m−3, of the nanoscale precipitates. The formation of the high number density of nanoscale precipitates is thought to be due to the addition of inoculant, such as a Group 3A, 4A, and 5A metal or metalloid. Additionally, methods for increasing the diffusivity of Zr in Al are disclosed.

    摘要翻译： 描述了可用于高温，高应力和各种其它应用的铝 - 锆和铝 - 锆 - 镧系元素超级合金。 镧系元素优选为钬，铒，ium或镱，最优选为铒。 另外，公开了制造上述合金的方法。 在高于约220℃的温度下具有商业上适合的硬度的超级合金包括纳米尺度的Al 3 Zr沉淀物和任选的纳米级Al 3 Er沉淀物和纳米尺度的Al 3（Zr，Er）沉淀物，其产生能够承受强烈热条件的高强度合金。 这些纳米级沉淀物在α-Al（fcc）基质中具有L12结构，平均直径小于约20纳米（“nm”），优选小于约10nm，更优选约4-6nm，高 数量密度，例如大于约1021m-3的纳米级沉淀物。 高密度的纳米级沉淀物的形成被认为是由于加入孕育剂，例如3A，4A和5A族金属或准金属。 另外，公开了提高Al在Al中的扩散率的方法。

    High Temperature Creep Resistant Aluminum Superalloys
    6.
    发明申请
    High Temperature Creep Resistant Aluminum Superalloys 审中-公开
    高温抗蠕变铝超合金

    公开(公告)号：US20160258042A1

    公开(公告)日：2016-09-08

    申请号：US15062105

    申请日：2016-03-05

    申请人： NanoAl LLC.

    发明人： Amirreza Sanaty-Zadeh ,  Nhon Q. Vo

    IPC分类号： C22C21/00 ,  C21D1/18 ,  B22D21/00 ,  C22F1/04 ,  C21D9/00

    摘要： This invention relates to a series of castable aluminum alloys with excellent creep and aging resistance, high electrical conductivity and thermal conductivity at elevated temperatures. The cast article comprises 0.4 to 2% by weight iron, 0 to 4% by weight nickel, 0.1 to 0.6 or about 0.1 to 0.8% by weight zirconium, optional 0.1 to 0.6% by weight vanadium, optional 0.1 to 2% by weight titanium, at least one inoculant such as 0.07-0.15% by weight tin, or 0.07-0.15% by weight indium, or 0.07-0.15% by weight antimony, or 0.02-0.2% by weight silicon, and aluminum as the remainder. The aluminum alloys contain a simultaneous dispersion of A16Fe, A13X (X=Fe, Ni) and/or A19FeNi intermetallic in the eutectic regions and a dispersion of nano-precipitates of Al3ZrxVyTi1−x−y (0≦x≦1, 0≦y≦1 and 0≦x+y≦1) having L12 crystal structure in the aluminum matrix in between the eutectic regions. The processing condition for producing cast article of the present invention is disclosed in detail.

    摘要翻译： 本发明涉及一系列在高温下具有优异的抗蠕变和耐老化性，高导电性和导热性的可铸铝合金。 铸造制品包含0.4至2重量％的铁，0至4重量％的镍，0.1至0.6或约0.1至0.8重量％的锆，任选的0.1至0.6重量％的钒，任选的0.1至2重量％的钛 ，至少一种孕育剂如锡-0.05-0.15重量％，铟0.07-0.15重量％，锑0.07-0.15重量％，硅烷0.02-0.2重量％，剩余铝。 铝合金在共晶区域中含有A16Fe，A13X（X = Fe，Ni）和/或A19FeNi金属间化合物的同时分散体，Al3ZrxVyTi1-x-y（0≤x≤1,0≤y）的纳米沉淀物的分散体 ≤1和0≤x+y≤1）在共晶区域之间的铝基体中具有L12晶体结构。 详细公开本发明的铸造制品的加工条件。

    ALUMINUM SUPERALLOYS FOR USE IN HIGH TEMPERATURE APPLICATIONS
    8.
    发明申请
    ALUMINUM SUPERALLOYS FOR USE IN HIGH TEMPERATURE APPLICATIONS 审中-公开
    用于高温应用的铝超合金

    公开(公告)号：US20170058386A1

    公开(公告)日：2017-03-02

    申请号：US15263011

    申请日：2016-09-12

    申请人： NanoAL LLC

    发明人： Nhon Q. Vo ,  David N. Seidman ,  David C. Dunand

    IPC分类号： C22F1/04 ,  C22C21/00 ,  C22C1/02

    CPC分类号： C22F1/04 ,  C22C1/026 ,  C22C1/03 ,  C22C21/00 ,  C22C21/02

    摘要： Aluminum-zirconium and aluminum-zirconium-lanthanide superalloys are described that can be used in high temperature, high stress and a variety of other applications. The lanthanide is preferably holmium, erbium, thulium or ytterbium, most preferably erbium. Also, methods of making the aforementioned alloys are disclosed. The superalloys, which have commercially-suitable hardness at temperatures above about 220° C., include nanoscale Al3Zr precipitates and optionally nanoscale Al3Er precipitates and nanoscale Al3(Zr,Er) precipitates that create a high-strength alloy capable of withstanding intense heat conditions. These nanoscale precipitates have a L12-structure in α-Al(f.c.c.) matrix, an average diameter of less than about 20 nanometers (“nm”), preferably less than about 10 nm, and more preferably about 4-6 nm and a high number density, which for example, is larger than about 1021 m−3, of the nanoscale precipitates. The formation of the high number density of nanoscale precipitates is thought to be due to the addition of inoculant, such as a Group 3A, 4A, and 5A metal or metalloid. Additionally, methods for increasing the diffusivity of Zr in Al are disclosed.

    摘要翻译： 描述了可用于高温，高应力和各种其它应用的铝 - 锆和铝 - 锆 - 镧系元素超级合金。 镧系元素优选为钬，铒，ium或镱，最优选为铒。 另外，公开了制造上述合金的方法。 在高于约220℃的温度下具有商业上适合的硬度的超级合金包括纳米尺度的Al 3 Zr沉淀物和任选的纳米级Al 3 Er沉淀物和纳米尺度的Al 3（Zr，Er）沉淀物，其产生能够承受强烈热条件的高强度合金。 这些纳米级沉淀物在α-Al（fcc）基质中具有L12结构，平均直径小于约20纳米（“nm”），优选小于约10nm，更优选约4-6nm，高 数量密度，例如大于约1021m-3的纳米级沉淀物。 高密度的纳米级沉淀物的形成被认为是由于加入孕育剂，例如3A，4A和5A族金属或准金属。 另外，公开了提高Al在Al中的扩散率的方法。

    ALUMINUM SUPERALLOYS FOR USE IN HIGH TEMPERATURE APPLICATIONS
    9.
    发明申请
    ALUMINUM SUPERALLOYS FOR USE IN HIGH TEMPERATURE APPLICATIONS 有权
    用于高温应用的铝超合金

    公开(公告)号：US20150259773A1

    公开(公告)日：2015-09-17

    申请号：US14645654

    申请日：2015-03-12

    申请人： NanoAL LLC

    发明人： Nhon Q. Vo ,  David N. Seidman ,  David C. Dunand

    IPC分类号： C22F1/04 ,  C22C1/02 ,  C22C21/00

    CPC分类号： C22F1/04 ,  C22C1/026 ,  C22C21/00 ,  C22C21/02

    摘要： Aluminum-zirconium and aluminum-zirconium-lanthanide superalloys are described that can be used in high temperature, high stress and a variety of other applications. The lanthanide is preferably holmium, erbium, thulium or ytterbium, most preferably erbium. Also, methods of making the aforementioned alloys are disclosed. The superalloys, which have commercially-suitable hardness at temperatures above about 220° C., include nanoscale Al3Zr precipitates and optionally nanoscale Al3Er precipitates and nanoscale Al3(Zr,Er) precipitates that create a high-strength alloy capable of withstanding intense heat conditions. These nanoscale precipitates have a L12-structure in α-Al(f.c.c.) matrix, an average diameter of less than about 20 nanometers (“nm”), preferably less than about 10 nm, and more preferably about 4-6 nm and a high number density, which for example, is larger than about 1021 m−3, of the nanoscale precipitates. The formation of the high number density of nanoscale precipitates is thought to be due to the addition of inoculant, such as a Group 3A, 4A, and 5A metal or metalloid. Additionally, methods for increasing the diffusivity of Zr in Al are disclosed.

    摘要翻译： 描述了可用于高温，高应力和各种其它应用的铝 - 锆和铝 - 锆 - 镧系元素超级合金。 镧系元素优选为钬，铒，ium或镱，最优选为铒。 另外，公开了制造上述合金的方法。 在高于约220℃的温度下具有商业上适合的硬度的超级合金包括纳米尺度的Al 3 Zr沉淀物和任选的纳米级Al 3 Er沉淀物和纳米尺度的Al 3（Zr，Er）沉淀物，其产生能够承受强烈热条件的高强度合金。 这些纳米级沉淀物在α-Al（fcc）基质中具有L12结构，平均直径小于约20纳米（“nm”），优选小于约10nm，更优选约4-6nm，高 数量密度，例如大于约1021m-3的纳米级沉淀物。 高密度的纳米级沉淀物的形成被认为是由于加入孕育剂，例如3A，4A和5A族金属或准金属。 另外，公开了提高Al在Al中的扩散率的方法。