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    ALUMINUM ALLOY PRODUCTS AND ARTIFICIAL AGING NETHOD
    3.
    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。

    4.
    发明专利
    未知

    公开(公告)号：DE69125436T3

    公开(公告)日：2005-08-18

    申请号：DE69125436

    申请日：1991-08-27

    Applicant: ALCOA INC

    Inventor： COLVIN EDWARD L ,  PETIT JOCELYN I ,  WESTERLUND ROBERT W

    IPC: C22C21/12 ,  B32B15/01 ,  C22C21/16 ,  C22F1/00 ,  C22F1/057

    Abstract: Disclosed is a method of producing a sheet product having improved levels of toughness and fatigue crack growth resistance while maintaining high strength, comprising providing a body of an aluminum base alloy containing 4.0 to 4.5 wt.% Cu, 1.2 to 1.5 wt.% Mg, 0.4 to 0.6 wt.% Mn, 0.12 wt.% max. Fe, 0.05 wt.% max. Si, the remainder aluminum, incidental elements and impurities and heating a body of the alloy to above 910 DEG F to dissolve soluble constituents. Thereafter, the body is hot rolled in the range of about 600 to 900 DEG F, solution heat treated for a time of less than about 15 minutes at a solution heat treating temperature, and rapidly cooled and naturally aged to provide a sheet product with improved levels of fatigue crack growth resistance while maintaining high strength.

    ALUMINUM ALLOY PRODUCTS AND ARTIFICIAL AGING METHOD
    6.
    发明专利
    ALUMINUM ALLOY PRODUCTS AND ARTIFICIAL AGING METHOD 未知

    公开(公告)号：CA2432089C

    公开(公告)日：2013-04-30

    申请号：CA2432089

    申请日：2001-10-04

    Applicant: ALCOA INC

    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

    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.

    METODO DE PRODUCIR UN PRODUCTO EN HOJAS DE ALEACION A BASE DE ALUMINIO.
    7.
    发明专利
    METODO DE PRODUCIR UN PRODUCTO EN HOJAS DE ALEACION A BASE DE ALUMINIO. 未知

    公开(公告)号：ES2102376T5

    公开(公告)日：2005-07-01

    申请号：ES91114388

    申请日：1991-08-27

    Applicant: ALCOA INC

    Inventor： COLVIN EDWARD L ,  PETIT JOCELYN I ,  WESTERLUND ROBERT W

    IPC: C22C21/12 ,  B32B15/01 ,  C22C21/16 ,  C22F1/00 ,  C22F1/057

    Abstract: SE DESCRIBE UN METODO PARA PRODUCIR UN LAMINADO DE UN PRODUCTO QUE TIENE NIVELES PERFECCIONADOS DE INCREMENTO DE LA RESISTENCIA A LA RUPTURA Y FATIGA MIENTRAS QUE MANTIENE UNA ALTA TOLERANCIA, QUE CONSISTE EN SUMINISTRAR A LA BASE DE LA ALEACION DE ALUMINIO CON 4,0 A 4,5% EN PESO DE CU, 1,2 A 1,5% EN PESO DE MG, 0,4 A 0,6% EN PESO DE MN, 0,12% EN PESO MAXIMO DE FE, 0,005% EN PESO MAXIMO DE SI, AL ALUMINIO RESTANTE, ELEMENTOS INCIDENTALES E IMPUREZAS Y CALENTANDO LA ALEACION A TEMPERATURAS SUPERIORES A 170 F PARA DISOLVER LOS CONSTITUYENTES SOLUBLES. A CONTINUACION, LA ALEACION ES LAMINADA EN CALIENTE ENTRE 600 A 900 F, SOMETIDA A UN TRATAMIENTO POR CALOR DE SOLUCION DURANTE MENOS DE 15 MINUTOS A LA TEMPERATURA DE TRATAMIENTO, Y ENFRIADO RAPIDAMENTE PARA SUMINISTRAR UN PRODUCTO LAMINADO CON NIVELES MEJORADOS DE RESISTENCIA A LA FATIGA MIENTRAS QUE MANTIENE UNA RESISTENCIA MAXIMA.

    ALUMINUM ALLOY PRODUCTS AND ARTIFICIAL AGING METHOD
    8.
    发明专利
    ALUMINUM ALLOY PRODUCTS AND ARTIFICIAL AGING METHOD 未知

    公开(公告)号：CA2432089A1

    公开(公告)日：2002-07-04

    申请号：CA2432089

    申请日：2001-10-04

    Applicant: ALCOA INC

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

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

    Abstract: Alluminum alloy products, such as plate, forgings and extrusions, suitable f or 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.

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