公开(公告)号：US20140248453A1

公开(公告)日：2014-09-04

申请号：US14076689

申请日：2013-11-11

Applicant: Alcoa Inc.

Inventor： Ming Li ,  James M. Marinelli ,  Jiantao Liu ,  Paul E. Magnusen ,  Simon Sheu ,  Markus B. Heinimann ,  John Liu ,  Luis Fanor Vega

IPC: F15D1/00

CPC classification number: F15D1/004 ,  B21B1/227 ,  B21B2003/001 ,  B64C21/10 ,  B64C2230/26 ,  F15D1/12 ,  Y02T50/166 ,  Y10T428/12389 ,  Y10T428/1359

Abstract: Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing these metal sheets and plates are disclosed herein. In an embodiment, there is provided a transportation vessel that includes at least one metal product having at least one surface that is substantially grooved, wherein the substantially grooved surface forms a riblet topography, the riblet topography including a multiplicity of adjacent permanently rolled longitudinal riblets running along at least a part of the surface, and wherein the riblet topography is coated with at least one coating sufficiently designed and applied to preserve the riblet topography. In an embodiment, the multiplicity of adjacent permanently rolled longitudinal riblets results in a friction-reducing textured surface. In an embodiment, metal product is used in fabricating at least a portion of an aircraft. In an embodiment, metal product is used in fabricating at least a portion of a rotor blade.

Abstract translation: 本文公开了具有减摩纹理表面的金属板和板以及制造这些金属板和板的方法。 在一个实施方案中，提供了一种运输容器，其包括至少一种具有至少一个基本上开槽的表面的金属制品，其中所述基本上开槽的表面形成肋状形貌，所述肋状形貌包括多个相邻的永久卷绕的纵向肋条 沿着所述表面的至少一部分，并且其中所述肋状形貌涂覆有至少一个被充分设计并用于保留所述肋状形貌的涂层。 在一个实施例中，多个相邻的永久卷绕的纵向肋条导致减少摩擦的纹理表面。 在一个实施例中，金属制品用于制造飞行器的至少一部分。 在一个实施例中，金属制品用于制造转子叶片的至少一部分。

公开(公告)号：US09297394B2

公开(公告)日：2016-03-29

申请号：US14076689

申请日：2013-11-11

Applicant: Alcoa Inc.

Inventor： Ming Li ,  James M. Marinelli ,  Jiantao Liu ,  Paul E. Magnusen ,  Simon Sheu ,  Markus B. Heinimann ,  John Liu ,  Luis Fanor Vega

IPC: F15D1/00 ,  B21B1/22 ,  F15D1/12 ,  B21B3/00

CPC classification number: F15D1/004 ,  B21B1/227 ,  B21B2003/001 ,  B64C21/10 ,  B64C2230/26 ,  F15D1/12 ,  Y02T50/166 ,  Y10T428/12389 ,  Y10T428/1359

Abstract: Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing these metal sheets and plates are disclosed herein. In an embodiment, there is provided a transportation vessel that includes at least one metal product having at least one surface that is substantially grooved, wherein the substantially grooved surface forms a riblet topography, the riblet topography including a multiplicity of adjacent permanently rolled longitudinal riblets running along at least a part of the surface, and wherein the riblet topography is coated with at least one coating sufficiently designed and applied to preserve the riblet topography. In an embodiment, the multiplicity of adjacent permanently rolled longitudinal riblets results in a friction-reducing textured surface. In an embodiment, metal product is used in fabricating at least a portion of an aircraft. In an embodiment, metal product is used in fabricating at least a portion of a rotor blade.

公开(公告)号：US10450640B2

公开(公告)日：2019-10-22

申请号：US13962696

申请日：2013-08-08

Applicant: ALCOA INC.

Inventor： Dhruba J. Chakrabarti ,  John Liu ,  Jay H. Goodman ,  Gregory B. Venema ,  Ralph R. Sawtell ,  Cynthia M. Krist ,  Robert W. Westerlund

IPC: C22F1/053 ,  B22D17/22 ,  C22C21/10

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

公开(公告)号：US20130312877A1

公开(公告)日：2013-11-28

申请号：US13962696

申请日：2013-08-08

Applicant: ALCOA INC.

Inventor： Dhruba J. Chakrabarti ,  John Liu ,  Jay H. Goodman ,  Gregory B. Venema ,  Ralph R. Sawtell ,  Cynthia M. Krist ,  Robert W. Westerlund

IPC: C22F1/053

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

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

Abstract translation: 适合用于制造航空航天结构部件如整体翼梁，肋骨和腹板的铝合金产品，例如板，锻件和挤压件，包括：约6至10wt。 ％Zn; 1.2〜1.9重量％ ％Mg; 1.2〜2.2重量％ ％Cu，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8.5wt。 ％Zn; 1.2〜1.7重量％ ％Mg; 1.3〜2重量％ ％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3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。