公开(公告)号：JP2002053925A

公开(公告)日：2002-02-19

申请号：JP2001177711

申请日：2001-06-12

Applicant: ALCOA INC

Inventor： RIOJA ROBERTO J ,  WESTERLUND ROBERT W ,  ROBERTS ANNE E ,  CHAKRABARTI DHRUBA J ,  DENZER DIANA K ,  MORALES ANTHONY ,  MAGNUSEN PAUL E ,  VENEMA GREGORY B

IPC: B21B3/00 ,  C22C21/02 ,  C22C21/06 ,  C22C21/08 ,  C22C21/10 ,  C22C21/12 ,  C22C21/16 ,  C22C21/18 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/05 ,  C22F1/053 ,  C22F1/057

Abstract: PROBLEM TO BE SOLVED: To produce an aluminum alloy rolled thin sheet product having the combination of improved fatigue crack growing resistance, improved strength and fracture toughness and useful for the use for aerospace such as the airframe of aircraft and to provide its production method. SOLUTION: This aluminum alloy rolled thin sheet product has a microstructure specified by crystal grains having the average aspect ratio of the average length to width higher than about 4:1. By the control of the alloy composition, the limitation of the parameters in rolling and heat treatment, their combination or the like respectively as for an aluminum-copper-based alloy, an aluminum-magnesium-based alloy, an aluminum-magnesium-silicon-based alloy and an aluminum-zinc-based alloy, the prescribed aspect ratio, the microstructure having high anisotropy and improved quality characteristics are realized. More concretely, for developing a desired amount of precipitates, the composition of the alloy, the rolling method and the heat treating method are controlled.

公开(公告)号：WO02075010A2

公开(公告)日：2002-09-26

申请号：PCT/US0208538

申请日：2002-03-20

Applicant: ALCOA INC ,  DENZER DIANA K ,  CHAKRABARTI DHRUBA J ,  LIU JOHN ,  OSWALD LYNN E ,  WESTERLUND ROBERT W

Inventor： DENZER DIANA K ,  CHAKRABARTI DHRUBA J ,  LIU JOHN ,  OSWALD LYNN E ,  WESTERLUND ROBERT W

IPC: C22F1/053 ,  C22F

CPC classification number: C22F1/053

Abstract: This invention relates to a method for artificially aging 7000 Series Al aerospace alloys to impart improved strength and/or corrosion resistance performance thereto. The method purposefully adds a second aging step or stage to a one-step tempering, or a third step/stage to a low-high, two-step aging operation. The added step/stage extends at about 225-275 DEG F for about 3-24 hours. More preferably, the added stage extends at about 250 DEG F for about 6 hours or more.

Abstract translation: 本发明涉及人造老化7000系列铝合金航空航天合金的方法，以赋予其改善的强度和/或耐腐蚀性能。 该方法有目的地将第二老化步骤或阶段添加到一步回火，或第三阶段/阶段到低 - 高两步老化操作。 添加的步骤/阶段在约225-275°F下延长约3-24小时。 更优选地，加入的阶段在约250°F下延伸约6小时或更长时间。

公开(公告)号：WO2008156532A2

公开(公告)日：2008-12-24

申请号：PCT/US2008006253

申请日：2008-05-14

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

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

CPC classification number: B64C3/182 ,  B64C3/185 ,  B64C3/187 ,  B64C3/26 ,  B64C2001/0081 ,  C22C21/10 ,  C22F1/053 ,  Y02T50/42

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.

Abstract translation: 约4英寸厚或以下的铝合金产品具有在固溶热处理，淬火和人工老化的同时实现的能力，以及由产品制成的零件中，改进了强度，断裂韧性和耐腐蚀性的组合，该合金组成 基本上为：约6.8至约8.5重量％的Zn，约1.5至约2.00重量％的Mg，约1.75至约2.3重量％的Cu; 约0.05至约0.3wt。 ％Zr，小于约0.1wt。 ％Mn，小于约0.05重量％的Cr，余量为Al，附带元素和杂质及其制备方法。 瞬时公开的合金可用于制造商用飞机的结构构件，包括但不限于上部翼皮和桁条，翼梁盖，翼梁腹板和构成或整体结构的肋。

公开(公告)号：WO2008156532A3

公开(公告)日：2009-01-29

申请号：PCT/US2008006253

申请日：2008-05-14

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

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

CPC classification number: B64C3/182 ,  B64C3/185 ,  B64C3/187 ,  B64C3/26 ,  B64C2001/0081 ,  C22C21/10 ,  C22F1/053 ,  Y02T50/42

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.

Abstract translation: 约4英寸厚或更小的铝合金产品具有在固溶热处理，淬火和人工时效以及由产品制成的部件中实现强度，断裂韧性和耐腐蚀性的改进组合的能力，组成合金 基本上为：约6.8至约8.5重量％的Zn，约1.5至约2.00重量％的Mg，约1.75至约2.3重量％的Cu; 约0.05至约0.3wt。 ％Zr，小于约0.1wt。 ％Mn，小于约0.05重量％的Cr，余量为Al，偶存元素和杂质及其制备方法。 立即公开的合金可用于制造商用飞机的结构构件，包括但不限于上部机翼蒙皮和纵梁，翼梁帽，翼梁腹板和构建或整体结构的肋。

公开(公告)号：AU2008267121A1

公开(公告)日：2008-12-24

申请号：AU2008267121

申请日：2008-05-14

Applicant: ALCOA INC

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

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.

公开(公告)号：BR0208271A

公开(公告)日：2004-03-09

申请号：BR0208271

申请日：2002-03-20

Applicant: ALCOA INC

Inventor： DENZER DIANA K ,  CHAKRABARTI DHRUBA J ,  LIU JOHN ,  OSWALD LYNN E ,  WESTERLUND ROBERT W

IPC: C22F1/053

公开(公告)号：CA2707311C

公开(公告)日：2017-09-05

申请号：CA2707311

申请日：2008-12-04

Applicant: ALCOA INC

Inventor： COLVIN EDWARD L ,  RIOJA ROBERTO J ,  YOCUM LES A ,  DENZER DIANA K ,  COGSWELL TODD K ,  BRAY GARY H ,  SAWTELL RALPH R ,  WILSON ANDRE L

IPC: C22C21/18 ,  C22C21/16

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.

公开(公告)号：CA2349793C

公开(公告)日：2009-09-22

申请号：CA2349793

申请日：2001-06-07

Applicant: ALCOA INC

Inventor： DENZER DIANA K ,  WESTERLUND ROBERT W ,  RIOJA ROBERTO J ,  CHAKRABARTI DHRUBA J ,  MORALES ANTHONY ,  MAGNUSEN PAUL E ,  VENEMA GREGORY B ,  ROBERTS ANNE E

IPC: B21B3/00 ,  C22C21/12 ,  C22C21/02 ,  C22C21/06 ,  C22C21/08 ,  C22C21/10 ,  C22C21/16 ,  C22C21/18 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/05 ,  C22F1/053 ,  C22F1/057

Abstract: Aluminum sheet products having highly anisotropic grain microstructures an d highly textured crystallographic microstructures are disclosed. The products exhibit improved strength and improved resistance to fatigue crack growth, as well as other advantageous properties such as improved combinations of strength and fracture toughness. The sheet products are useful for aerospace and other applications, particularly aircraft fuselages.

公开(公告)号：CA2686628A1

公开(公告)日：2008-12-24

申请号：CA2686628

申请日：2008-05-14

Applicant: ALCOA INC

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

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

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

公开(公告)号：CA2349793A1

公开(公告)日：2001-12-12

申请号：CA2349793

申请日：2001-06-07

Applicant: ALCOA INC

Inventor： DENZER DIANA K ,  MORALES ANTHONY ,  ROBERTS ANNE E ,  VENEMA GREGORY B ,  MAGNUSEN PAUL E ,  CHAKRABARTI DHRUBA J ,  WESTERLUND ROBERT W ,  RIOJA ROBERTO J

IPC: B21B3/00 ,  C22C21/02 ,  C22C21/06 ,  C22C21/08 ,  C22C21/10 ,  C22C21/12 ,  C22C21/16 ,  C22C21/18 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/05 ,  C22F1/053 ,  C22F1/057

Abstract: Aluminum sheet products having highly anisotropic grain microstructures a nd highly textured crystallographic microstructures are disclosed. The products exhibit improved strength and improved resistance to fatigue crack growth, as well as other advantageous properties such as improved combinations of strength and fracture toughness. The sheet products are useful for aerospace and other applications, particularly aircraft fuselages.