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    11.
    发明专利
    未知

    公开(公告)号：BR0116422A

    公开(公告)日：2003-12-30

    申请号：BR0116422

    申请日：2001-10-04

    Applicant: ALCOA INC

    Inventor： CHAKRABARTI DHRUBA J ,  LIU JOHN ,  GOODMAN JAY H ,  VENEMA GREGORY B ,  SAWTELL RALPH ,  KRIST CYNTHIA M ,  WESTERLUND ROBERT W

    IPC: C22C21/10 ,  C22F1/00 ,  C22F1/053

    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 three stage method of preferred embodiments, this alloy also achieves superior SCC performance, including under seacoast conditions.

    2XXX SERIES ALUMINUM LITHIUM ALLOYS
    13.
    发明申请
    2XXX SERIES ALUMINUM LITHIUM ALLOYS 审中-公开
    2XXX系列铝合金

    公开(公告)号：WO2012112942A2

    公开(公告)日：2012-08-23

    申请号：PCT/US2012025724

    申请日：2012-02-17

    Applicant: ALCOA INC ,  BOSELLI JULIEN ,  RIOJA ROBERTO J ,  VENEMA GREGORY B ,  SAWTELL RALPH R

    Inventor： BOSELLI JULIEN ,  RIOJA ROBERTO J ,  VENEMA GREGORY B ,  SAWTELL RALPH R

    CPC classification number: C22C21/00 ,  C22C21/12 ,  C22F1/04 ,  C22F1/057

    Abstract: Thick wrought 2xxx aluminum lithium alloy products are disclosed. The wrought aluminum alloy products have a thickness of at least 12.7 mm and 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: 公开了厚锻2xxx铝锂合金产品。 锻造的铝合金产品的厚度至少为12.7mm，含有3.00至3.80wt。 ％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 ALLOY PRODUCTS AND ARTIFICIAL AGING NETHOD
    15.
    发明申请
    ALUMINUM ALLOY PRODUCTS AND ARTIFICIAL AGING NETHOD 审中-公开
    铝合金产品和人工老化网

    公开(公告)号：WO02052053A8

    公开(公告)日：2004-02-26

    申请号：PCT/US0130895

    申请日：2001-10-04

    Applicant: ALCOA INC ,  CHAKRABARTI DHRUBA J ,  LIU JOHN ,  GOODMAN JAY H ,  VENEMA GREGORY B ,  SAWTELL RALPH R ,  KRIST CYNTHIA M ,  WESTERLUND ROBERT W

    Inventor： CHAKRABARTI DHRUBA J ,  LIU JOHN ,  GOODMAN JAY H ,  VENEMA GREGORY B ,  SAWTELL RALPH R ,  KRIST CYNTHIA M ,  WESTERLUND ROBERT W

    IPC: C22C21/10 ,  C22F1/00 ,  C22F1/053

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

    Abstract: Alluminum 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 three stage method of preferred embodiments, this alloy also achieves superior SCC performance, including under seacoast conditions.

    Abstract translation: 适用于制造航空航天结构部件如整体式翼梁，肋骨和腹板的铝合金产品，例如板，锻件和挤压件，其含量约为：6至10重量％的Zn; 1.2〜1.9重量％的Mg; 1.2至2.2重量％的Cu，其中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8.5重量％的Zn; 1.2〜1.7重量％的Mg; 1.3至2重量％的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三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。

    16.
    发明专利
    未知

    公开(公告)号：BRPI0811532A2

    公开(公告)日：2014-11-18

    申请号：BRPI0811532

    申请日：2008-05-14

    Applicant: ALCOA INC

    Inventor： BRAY GARY H ,  CHAKRABARTI DHRUBA J ,  DENZER DIANA K ,  LIN JEN C ,  NEWMAN JOHN ,  VENEMA GREGORY B ,  YANAR CAGATAY ,  BOSELLI JULIEN

    IPC: C22C21/10 ,  B64C3/00 ,  C22F1/053

    Abstract: Aluminum alloy products about 4 inches thick or less that possesses the ability to achieve, when solution heat treated, quenched, and artificially aged, and in parts made from the products, an improved combination of strength, fracture toughness and corrosion resistance, the alloy consisting essentially of: about 6.8 to about 8.5 wt.% Zn, about 1.5 to about 2.00 wt.% Mg, about 1.75 to about 2.3 wt.% Cu; about 0.05 to about 0.3 wt. % Zr, less than about 0.1 wt. % Mn, less than about 0.05 wt.% Cr, the balance Al, incidental elements and impurities and a method for making same. The instantly disclosed alloys are useful in making structural members for commercial airplanes including, but not limited to, upper wing skins and stringers, spar caps, spar webs and ribs of either built-up or integral construction.

    2XXX SERIES ALUMINUM LITHIUM ALLOYS
    17.
    发明专利
    2XXX SERIES ALUMINUM LITHIUM ALLOYS 未知

    公开(公告)号：CA2880692A1

    公开(公告)日：2014-02-20

    申请号：CA2880692

    申请日：2013-08-14

    Applicant: ALCOA INC

    Inventor： BOSELLI JULIEN ,  RIOJA ROBERTO J ,  VENEMA GREGORY B ,  SAWTELL RALPH R ,  MAGNUSEN PAUL E

    IPC: C22C21/12

    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.

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