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.

公开(公告)号：AU2007229365A1

公开(公告)日：2007-11-22

申请号：AU2007229365

申请日：2007-10-18

Applicant: ALCOA INC

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

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

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。

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.

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.