Global Patent Index - EP 0325937 A1

EP 0325937 A1 19890802 - Aluminum-lithium alloys.

Title (en)

Aluminum-lithium alloys.

Title (de)

Aluminium-Lithium-Legierungen.

Title (fr)

Alliages aluminium-lithium.

Publication

EP 0325937 A1 19890802 (EN)

Application

EP 89100355 A 19890110

Priority

  • US 14980288 A 19880128
  • US 17250688 A 19880324

Abstract (en)

Disclosed is an aluminum base alloy suitable for forming into a wrought product having improved combinations of strength, corrosion resistance and fracture toughness. The alloy is comprised of 0.2 to 5.0 wt.% Li, 0.05 to 6.0 wt.% Mg, at least 2.45 wt.% Cu, 0.01 to 0.16 wt.% Zr, 0.05 to 12 wt.% Zn, 0.5 wt.% max. Fe, 0.5 wt.% max. Si, the balance aluminum and incidental impurities.

IPC 1-7

C22C 21/00; C22C 21/12; C22F 1/04; C22F 1/057

IPC 8 full level

C22C 21/00 (2006.01); C22C 21/12 (2006.01); C22F 1/00 (2006.01); C22F 1/04 (2006.01); C22F 1/057 (2006.01)

CPC (source: EP)

C22C 21/00 (2013.01); C22C 21/12 (2013.01); C22F 1/04 (2013.01); C22F 1/057 (2013.01)

Citation (search report)

  • [X] EP 0214381 A1 19870318 - BOEING CO [US]
  • [Y] WO 8703011 A1 19870521 - ALUMINUM CO OF AMERICA [US]
  • [Y] EP 0157600 A2 19851009 - ALUMINUM CO OF AMERICA [US]
  • [A] EP 0158571 A1 19851016 - CEGEDUR [FR]
  • [A] GB 2137227 A 19841003 - ALCAN INT LTD
  • [A] ACTA METALLURGICA, vol. 33, no. 3, 1985, pages 527-537, Pergamon Press Ltd, GB; P.J.GREGSON et al.: "Microstructural control of toughness in aluminium-lithium alloys"
  • [A] PROCEEDINGS OF THE SECOND INTERNATIONAL ALUMINUM-LITHIUM CONFERENCE: ALUMINUM-LITHIUM ALLOYS II, 12th-14th April 1983, Monterey, California, edited by E.A.Starke, Jr., pages 407-418, The Metallurgical Society of AIME, Warrendale, US; J.W.BOHLEN et al.: "Investigation of Al-Li based alloys at northrop"

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0325937 A1 19890802; EP 0325937 B1 19940309; CA 1338007 C 19960130; DE 4123560 A1 19930121; DE 4123560 B4 20060309; DE 68913561 D1 19940414; DE 68913561 T2 19941020; JP 3101280 B2 20001023; JP H01242750 A 19890927

DOCDB simple family (application)

EP 89100355 A 19890110; CA 587864 A 19890110; DE 4123560 A 19910716; DE 68913561 T 19890110; JP 1936489 A 19890127