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    ALUMINUM-COPPER-LITHIUM ALLOYS
    21.
    发明申请
    ALUMINUM-COPPER-LITHIUM ALLOYS 审中-公开
    铝 - 铜合金

    公开(公告)号：US20140212326A1

    公开(公告)日：2014-07-31

    申请号：US14242577

    申请日：2014-04-01

    Applicant: ALCOA INC.

    Inventor： Edward L. Colvin ,  Roberto J. Rioja ,  Les A. Yocum ,  Diana K. Denzer ,  Todd K. Cogswell ,  Gary H. Bray ,  Ralph R. Sawtell ,  Andre L. Wilson

    IPC: C22C21/16

    CPC classification number: C22C21/16 ,  C22C21/18 ,  C22F1/057

    Abstract: Improved aluminum-copper-lithium alloys are disclosed. The alloys may include 3.4-4.2 wt. % Cu, 0.9-1.4 wt. % Li, 0.3-0.7 wt. % Ag, 0.1-0.6 wt. % Mg, 0.2-0.8 wt. % Zn, 0.1-0.6 wt. % Mn, and 0.01-0.6 wt. % of at least one grain structure control element, the balance being aluminum and incidental elements and impurities. The alloys achieve an improved combination of properties over prior art alloys.

    Abstract translation: 公开了改进的铝 - 铜 - 锂合金。 合金可以包括3.4-4.2wt。 ％Cu，0.9-1.4重量％ ％Li，0.3-0.7wt。 ％Ag，0.1-0.6wt。 ％Mg，0.2-0.8wt。 ％Zn，0.1-0.6wt。 ％Mn，和0.01-0.6wt。 ％的至少一种晶粒结构控制元素，余量为铝和附带元素和杂质。 与现有技术的合金相比，合金实现了改进的性能组合。

    ALUMINUM ALLOYS AND METHODS FOR PRODUCING THE SAME
    22.
    发明申请
    ALUMINUM ALLOYS AND METHODS FOR PRODUCING THE SAME 有权
    铝合金及其制造方法

    公开(公告)号：US20140000768A1

    公开(公告)日：2014-01-02

    申请号：US13943126

    申请日：2013-07-16

    Applicant: Alcoa Inc.

    Inventor： Ralph R. Sawtell ,  John M. Newman ,  Thomas N. Rouns ,  Raymond J. Kilmer

    IPC: C22F1/05

    CPC classification number: C22F1/05 ,  C22C21/08 ,  C22F1/047

    Abstract: Heat treatable aluminum alloy strips and methods for making the same are disclosed. The heat treatable aluminum alloy strips are continuously cast and quenched, with optional rolling occurring before and/or after quenching. After quenching, the heat treatable aluminum alloy strip is neither annealed nor solution heat treated.

    Abstract translation: 公开了可热处理的铝合金带及其制造方法。 可热处理的铝合金条被连续铸造和淬火，在淬火之前和/或之后发生任选的轧制。 淬火后，可热处理的铝合金钢带既不进行退火也不进行热处理。

    ALUMINUM ALLOY PRODUCTS HAVING IMPROVED PROPERTY COMBINATIONS AND METHOD FOR ARTIFICIALLY AGING SAME
    23.
    发明申请
    ALUMINUM ALLOY PRODUCTS HAVING IMPROVED PROPERTY COMBINATIONS AND METHOD FOR ARTIFICIALLY AGING SAME 审中-公开
    具有改进的物业组合的铝合金制品及其人造纤维的方法

    公开(公告)号：US20130312877A1

    公开(公告)日：2013-11-28

    申请号：US13962696

    申请日：2013-08-08

    Applicant: ALCOA INC.

    Inventor： Dhruba J. Chakrabarti ,  John Liu ,  Jay H. Goodman ,  Gregory B. Venema ,  Ralph R. Sawtell ,  Cynthia M. Krist ,  Robert W. Westerlund

    IPC: C22F1/053

    CPC classification number: C22F1/053 ,  B22D17/2209 ,  C22C21/10

    Abstract: Aluminum alloy products, such as plate, forgings and extrusions, suitable for use in making aerospace structural components like integral wing spars, ribs and webs, comprises about: 6 to 10 wt. % Zn; 1.2 to 1.9 wt. % Mg; 1.2 to 2.2 wt. % Cu, with Mg≦(Cu+0.3); and 0.05 to 0.4 wt. % Zr, the balance Al, incidental elements and impurities. Preferably, the alloy contains about 6.9 to 8.5 wt. % Zn; 1.2 to 1.7 wt. % Mg; 1.3 to 2 wt. % Cu. This alloy provides improved combinations of strength and fracture toughness in thick gauges. When artificially aged per the 3-stage method of preferred embodiments, this alloy also achieves superior SCC performance, including under seacoast conditions.

    Abstract translation: 适合用于制造航空航天结构部件如整体翼梁，肋骨和腹板的铝合金产品，例如板，锻件和挤压件，包括：约6至10wt。 ％Zn; 1.2〜1.9重量％ ％Mg; 1.2〜2.2重量％ ％Cu，Mg @（Cu + 0.3）; 和0.05〜0.4重量％ ％Zr，余量为Al，附带元素和杂质。 优选地，合金含有约6.9至8.5wt。 ％Zn; 1.2〜1.7重量％ ％Mg; 1.3〜2重量％ ％Cu。 该合金提供了厚度计中强度和断裂韧性的改进组合。 当根据优选实施方案的3阶段方法人工老化时，该合金还实现了优异的SCC性能，包括在海岸条件下。

    2XXX SERIES ALUMINUM LITHIUM ALLOYS HAVING LOW STRENGTH DIFFERENTIAL
    26.
    发明申请
    2XXX SERIES ALUMINUM LITHIUM ALLOYS HAVING LOW STRENGTH DIFFERENTIAL 审中-公开
    2XXX系列具有低强度差异的铝合金

    公开(公告)号：US20150000799A1

    公开(公告)日：2015-01-01

    申请号：US14486209

    申请日：2014-09-15

    Applicant: ALCOA INC.

    Inventor： Cagatay Yanar ,  Roberto J. Rioja ,  Jen C. Lin ,  Ralph R. Sawtell

    IPC: C22F1/057

    CPC classification number: C22F1/057 ,  B22D21/007 ,  C22C21/16 ,  C22C21/18

    Abstract: The present application discloses wrought 2xxx Al—Li alloy products that are work insensitive. The wrought aluminum alloy products generally include from about 2.75 wt. % to about 5.0 wt. % Cu, from about 0.2 wt. % to about 0.8 wt. % Mg, where the ratio of copper-to-magnesium ratio (Cu/Mg) in the aluminum alloy is in the range of from about 6.1 to about 17, from about 0.1 wt. % to 1.10 wt. % Li, from about 0.3 wt. % to about 2.0 wt. % Ag, from 0.50 wt. % to about 1.5 wt. % Zn, up to about 1.0 wt. % Mn, the balance being aluminum, optional incidental elements, and impurities. The wrought aluminum alloy products may realize a low strength differential and in a short aging time due to their work insensitive nature.

    Abstract translation: 本申请公开了对工作不敏感的锻造2xxx Al-Li合金产品。 锻造的铝合金产品通常包括约2.75wt。 ％至约5.0wt。 ％Cu，约0.2wt。 ％至约0.8wt。 ％Mg，其中铝合金中铜 - 镁比（Cu / Mg）的比率在约6.1至约17的范围内，约0.1wt。 ％至1.10重量％ ％Li，约0.3wt。 ％至约2.0wt。 ％Ag，0.50重量％ ％至约1.5wt。 ％Zn，高达约1.0wt。 ％Mn，余量为铝，可选附带元素和杂质。 锻造的铝合金产品可以实现低强度差异，并且由于其工作不敏感性而在短时间内。

    METHOD OF PRODUCING INGOT WITH VARIABLE COMPOSITION USING PLANAR SOLIDIFICATION
    29.
    发明申请
    METHOD OF PRODUCING INGOT WITH VARIABLE COMPOSITION USING PLANAR SOLIDIFICATION 审中-公开
    使用平面固化法生产具有可变组成的组合物的方法

    公开(公告)号：US20140231040A1

    公开(公告)日：2014-08-21

    申请号：US14260564

    申请日：2014-04-24

    Applicant: Alcoa Inc.

    Inventor： Ralph R. Sawtell ,  Men Glenn Chu

    IPC: B22D7/02

    CPC classification number: B22D7/02 ,  B22D19/16 ,  Y10T428/12458 ,  Y10T428/12493

    Abstract: Molten metal of a first composition is fed into a mold cavity, via a first control apparatus, wherein the control apparatus is open, wherein the feeding comprises flowing out of a first feed chamber. The first control apparatus is closed. A second control apparatus is opened. Molten metal of a second composition is fed into the mold cavity, via the second control apparatus, wherein at least a portion of the metal of the first composition in the mold cavity is sufficiently molten so that an initial feed of molten metal of the second composition mixes with the molten metal of the first composition in the mold cavity, wherein the feeding comprises flowing out of a second feed chamber, wherein the second composition is different from the first composition. An ingot is removed from the mold cavity, wherein the ingot has a top section, a middle section, and a bottom section, wherein the bottom section is composed of metal of the first composition, wherein the top section is composed of metal of the second composition, wherein the middle section is composed of a mixture of metal of the first composition and the second composition.

    Abstract translation: 通过第一控制装置将第一组合物的熔融金属进料到模腔中，其中控制装置打开，其中进料包括从第一进料室流出。 第一控制装置关闭。 打开第二控制装置。 通过第二控制装置将第二组合物的熔融金属进料到模具腔中，其中模腔中的第一组合物的金属的至少一部分充分熔化，使得第二组合物的熔融金属的初始进料 与模腔中的第一组合物的熔融金属混合，其中进料包括从第二进料室流出，其中第二组合物不同于第一组合物。 从模具腔中取出铸锭，其中铸锭具有顶部，中间部分和底部部分，其中底部由第一组合物的金属构成，其中顶部部分由第二组分的金属构成 组合物，其中中间部分由第一组合物和第二组合物的金属的混合物组成。

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