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1. (WO1991017281) DOUBLE AGED RAPIDLY SOLIDIFIED ALUMINUM-LITHIUM ALLOYS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/017281 International Application No.: PCT/US1991/000549
Publication Date: 14.11.1991 International Filing Date: 25.01.1991
Chapter 2 Demand Filed: 16.09.1991
IPC:
C22C 21/00 (2006.01) ,C22F 1/04 (2006.01) ,C22F 1/047 (2006.01) ,C22F 1/057 (2006.01)
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
21
Alloys based on aluminium
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04
of aluminium or alloys based thereon
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04
of aluminium or alloys based thereon
047
of alloys with magnesium as the next major constituent
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04
of aluminium or alloys based thereon
057
of alloys with copper as the next major constituent
Applicants:
ALLIED-SIGNAL INC. [US/US]; Law Department (C.A. McNally) P.O. Box 2245R Morristown, NJ 07960, US
Inventors:
LASALLE, Jerry, C.; US
RAMANAN, V., R., V.; US
SKINNER, David, J.; US
Agent:
ROONEY, Gerard, P.; Allied-Signal Inc. Law Dept. (C.A. McNally) 101 Columbia Road P.O. Box 2245 Morristown, NJ 07962-2245, US
BUFF, Ernest, D.; Allied-Signal Inc. Law Department (C.A. McNally) P.O. Box 2245 Morristown, NJ 07962, US
Priority Data:
517,77402.05.1990US
Title (EN) DOUBLE AGED RAPIDLY SOLIDIFIED ALUMINUM-LITHIUM ALLOYS
(FR) ALLIAGES D'ALUMINIUM ET DE LITHIUM RAPIDEMENT SOLIDIFIES ET SOUMIS A UN DOUBLE TRAITEMENT DE VIEILLISSEMENT
Abstract:
(EN) A component consolidated from a rapidly solidified aluminum-lithium alloy containing copper, magnesium and zirconium is subjected to a preliminary aging treatment at a temperature of about 400 °C to 500 °C for a time period of about 0.5 to 10 hours; quenched in a fluid bath; and subjected to a final aging treatment at a temperature of about 100 °C to 250 °C for a time period ranging up to about 40 hours. The component exhibits increased strength and elongation, and is especially suited for use in lightweight structural parts for land vehicles and aerospace applications.
(FR) On soumet un composant, consolidé à base d'un alliage d'aluminium et de lithium rapidement solidifié et contenant du cuivre, du magnésium et du zirconium, a un traitement de vieillissement préliminaire à une température comprise entre environ 400 °C et 500 °C pendant une période d'environ 0,5 à 10 heures, puis on le refroidit par trempe dans un bain de fluide et on le soumet à un traitement de vieillissement final à une température comprise entre environ 100 °C et 250 °C pendant une période allant jusqu'à 40 heures environ. Un tel composant présente une amélioration de sa résistance et de sa capacité d'allongement et est particulièrement utilisable dans des pièces de structure légères pour véhicules tout terrain et pour applications aérospatiales.
Designated States: AU, BB, BG, BR, CA, FI, HU, JP, KP, KR, LK, MC, MG, MW, NO, RO, SD, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0528811JPH05506271CA2079327AU1991075822