Global Patent Index - EP 3101149 A1

EP 3101149 A1 20161207 - HIGH STRENGTH 7XXX SERIES ALUMINUM ALLOY PRODUCTS AND METHODS OF MAKING SUCH PRODUCTS

Title (en)

HIGH STRENGTH 7XXX SERIES ALUMINUM ALLOY PRODUCTS AND METHODS OF MAKING SUCH PRODUCTS

Title (de)

HOCHFESTE ALUMINIUMLEGIERUNGSPRODUKTE DER 7XXX-SERIE UND VERFAHREN ZUR HERSTELLUNG SOLCHER PRODUKTE

Title (fr)

PRODUITS EN ALLIAGE D'ALUMINIUM DE SÉRIE 7XXX ULTRA ÉPAIS À HAUTE RÉSISTANCE ET PROCÉDÉS DE FABRICATION DE TELS PRODUITS

Publication

EP 3101149 A1 20161207 (EN)

Application

EP 16172536 A 20160601

Priority

US 201514727341 A 20150601

Abstract (en)

The present invention is directed to a thick plate high strength 7xxx aluminum alloy product comprising 8.0 to 8.4 wt.% Zn, 1.5 to 2.0 wt.% Mg, 1.1 to 1.5 wt.% Cu, and 0.05 to 0.15 wt.% Zr, 4.0 to 5.3 of Zn/Mg weight percentage ratio, 0.14 to 0.19 of Cu/Zn weight percentage ratio, and 10.7 to 11.6 wt.% of Cu+Mg+Zn. This alloy can be fabricated to produce 3-10 inch thick plate, extrusion or forging products, and is especially suitable for aerospace structural components, especially large commercial airplane wing structure applications. The product provides high strength, high damage tolerance performance as well as better corrosion resistance performance suitable for aerospace application.

IPC 8 full level

C22F 1/053 (2006.01); C22C 21/10 (2006.01)

CPC (source: BR CN EP US)

C22C 21/10 (2013.01 - CN EP US); C22C 21/12 (2013.01 - BR); C22F 1/002 (2013.01 - CN EP US); C22F 1/053 (2013.01 - CN EP US); C22C 21/00 (2013.01 - BR); C22C 21/10 (2013.01 - BR)

Citation (applicant)

Citation (search report)

  • [X] US 2005189044 A1 20050901 - BENEDICTUS RINZE [NL], et al
  • [X] US 2002121319 A1 20020905 - CHAKRABARTI DHRUBA J [US], et al
  • [X] US 6027582 A 20000222 - SHAHANI RAVI [FR], et al
  • [A] US 2011297278 A1 20111208 - XIONG BAIQING [CN], et al
  • [A] EP 2662467 A1 20131113 - KAISER ALUMINUM FABRICATED PRODUCTS LLC [US]
  • [XA] PH LEQUEU ET AL: "Aluminum alloy development for the Airbus A380--Part 2", ADVANCED MATERIALS & PROCESSES., vol. 165, no. 7, 1 July 2007 (2007-07-01), US, pages 41, XP055305259, ISSN: 0882-7958
  • [A] "International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys With Support for On-line Access From: Aluminum Extruders Council Aluminium Federation of South Africa Australian Aluminium Council Ltd. European Aluminium Association Japan Aluminium Ass", 1 February 2009 (2009-02-01), XP055136121, Retrieved from the Internet <URL:http://www.aluminum.org/sites/default/files/Teal_Sheets.pdf> [retrieved on 20140822]
  • [A] LIU S ET AL: "Investigation of quench sensitivity of high strength Al-Zn-Mg-Cu alloys by time-temperature-properties diagrams", MATERIALS AND DESIGN, LONDON, GB, vol. 31, no. 6, 1 June 2010 (2010-06-01), pages 3116 - 3120, XP026920238, ISSN: 0261-3069, [retrieved on 20100223], DOI: 10.1016/J.MATDES.2009.12.038

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3101149 A1 20161207; BR 102016012355 A2 20161206; CA 2928685 A1 20161201; CN 106191576 A 20161207; US 2016348224 A1 20161201

DOCDB simple family (application)

EP 16172536 A 20160601; BR 102016012355 A 20160531; CA 2928685 A 20160503; CN 201610375224 A 20160531; US 201514727341 A 20150601