2XXX series aluminum lithium alloys having low strength differential

    公开(公告)号:US10435774B2

    公开(公告)日:2019-10-08

    申请号:US14486209

    申请日:2014-09-15

    Applicant: ALCOA INC.

    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.

    HIGH STRENGTH FORGED ALUMINUM ALLOY PRODUCTS
    3.
    发明申请
    HIGH STRENGTH FORGED ALUMINUM ALLOY PRODUCTS 审中-公开
    高强度锻造铝合金产品

    公开(公告)号:US20150376743A1

    公开(公告)日:2015-12-31

    申请号:US14847303

    申请日:2015-09-08

    Applicant: ALCOA INC.

    Abstract: High strength forged aluminum alloys and methods for producing the same are disclosed. The forged aluminum alloy products may have grains having a high aspect ratio in at least two planes, generally the L-ST and the LT-ST planes. The forged aluminum alloy products may also have a high amount of texture. The forged products may realize increased strength relative to conventionally prepared forged products of comparable product form, composition and temper.

    Abstract translation: 公开了高强度锻造铝合金及其制造方法。 锻造的铝合金产品可以在至少两个平面(通常为L-ST和LT-ST平面)中具有高纵横比的晶粒。 锻造的铝合金产品也可能具有很高的质感。 相对于常规制备的具有可比较的产品形式,组成和回火的锻造产品,锻造产品可以实现增强的强度。

    ALUMINUM-MAGNESIUM-LITHIUM ALLOYS, AND METHODS FOR PRODUCING THE SAME
    4.
    发明申请
    ALUMINUM-MAGNESIUM-LITHIUM ALLOYS, AND METHODS FOR PRODUCING THE SAME 审中-公开
    铝镁合金及其制造方法

    公开(公告)号:US20150376740A1

    公开(公告)日:2015-12-31

    申请号:US13828571

    申请日:2013-03-14

    Applicant: Alcoa Inc.

    CPC classification number: C22C21/06 C22F1/04 C22F1/047 C22F1/053

    Abstract: New aluminum-magnesium-lithium alloys, and methods for producing the same are disclosed. The alloys generally contain 2.0-3.9 wt. % Mg, 0.1-1.8 wt. % Li, up to 1.5 wt. % Cu, up to 2.0 wt. % Zn, up to 1.0 wt. % Ag, up to 1.5 wt. % Mn, up to 0.5 wt. % Si, up to 0.35 wt. % Fe, 0.05 to 0.50 wt. % of a grain structure control element, up to 0.10 wt. % Ti, and up to 0.10 wt. % of any other element, with the total of these other elements not exceeding 0.35 wt. %, the balance being aluminum.

    Abstract translation: 公开了新的铝 - 镁 - 锂合金及其制备方法。 合金通常含有2.0-3.9重量% %Mg,0.1-1.8wt。 %Li,高达1.5wt。 %Cu,高达2.0wt。 %Zn,至多1.0wt。 %Ag,高达1.5wt。 %Mn,至多0.5wt。 %Si,高达0.35wt。 %Fe,0.05〜0.50wt。 %的晶粒结构控制元件,高达0.10wt。 %Ti,和至多0.10wt。 任何其他元素的百分比,其中这些其他元素的总和不超过0.35重量%。 %,余量为铝。

    2XXX SERIES ALUMINUM LITHIUM ALLOYS
    8.
    发明申请
    2XXX SERIES ALUMINUM LITHIUM ALLOYS 审中-公开
    2XXX系列铝合金

    公开(公告)号:US20140050936A1

    公开(公告)日:2014-02-20

    申请号:US13785793

    申请日:2013-03-05

    Applicant: ALCOA INC.

    CPC classification number: C22C21/18 C22C21/14 C22C21/16 C22F1/057 Y10T428/12

    Abstract: Wrought 2xxx aluminum lithium alloy products having a thickness of from 0.040 inch to 0.500 inch are disclosed. The wrought aluminum alloy products contain from 3.00 to 3.80 wt. % Cu, from 0.05 to 0.35 wt. % Mg, from 0.975 to 1.385 wt. % Li, wherein −0.3*Mg−0.15Cu+1.65≦Li≦−0.3*Mg−0.15Cu+1.85, from 0.05 to 0.50 wt. % of at least one grain structure control element, wherein the grain structure control element is selected from the group consisting of Zr, Sc, Cr, V, Hf, other rare earth elements, and combinations thereof, up to 1.0 wt. % Zn, up to 1.0 wt. % Mn, up to 0.12 wt. % Si, up to 0.15 wt. % Fe, up to 0.15 wt. % Ti, up to 0.10 wt. % of any other element, with the total of these other elements not exceeding 0.35 wt. %, the balance being aluminum.

    Abstract translation: 公开了厚度为0.040英寸至0.500英寸的锻造2xxx铝锂合金产品。 锻造的铝合金产品含有3.00〜3.80重量% %Cu,0.05〜0.35wt。 %Mg,0.975〜1.385wt。 %Li,其中-0.3 * Mg-0.15Cu + 1.65 @ Li @ -0.3 * Mg-0.15Cu + 1.85,0.05-0.50wt。 %的至少一种晶粒结构控制元素,其中所述晶粒结构控制元素选自Zr,Sc,Cr,V,Hf,其它稀土元素及其组合,最多为1.0wt。 %Zn,至多1.0wt。 %Mn,高达0.12wt。 %Si,至多0.15wt。 %Fe,至多0.15wt。 %Ti,至多0.10wt。 任何其他元素的百分比,其中这些其他元素的总和不超过0.35重量%。 %,余量为铝。

    ALUMINUM-COPPER-LITHIUM ALLOYS
    9.
    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.

    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。

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