EP0229075A1 - Alliages en aluminium ductiles, de faible densite et de resistan ce elevee et procede de fabrication. - Google Patents

Alliages en aluminium ductiles, de faible densite et de resistan ce elevee et procede de fabrication.

Info

Publication number
EP0229075A1
EP0229075A1 EP19860902711 EP86902711A EP0229075A1 EP 0229075 A1 EP0229075 A1 EP 0229075A1 EP 19860902711 EP19860902711 EP 19860902711 EP 86902711 A EP86902711 A EP 86902711A EP 0229075 A1 EP0229075 A1 EP 0229075A1
Authority
EP
European Patent Office
Prior art keywords
alloy
ranges
aluminum
composite
low density
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19860902711
Other languages
German (de)
English (en)
Other versions
EP0229075B1 (fr
Inventor
Nack Joon Kim
Colin Mclean Adam
Richard Lister Bye Jr
Santosh Kumar Das
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell International Inc
Original Assignee
Allied Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Allied Corp filed Critical Allied Corp
Publication of EP0229075A1 publication Critical patent/EP0229075A1/fr
Application granted granted Critical
Publication of EP0229075B1 publication Critical patent/EP0229075B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium

Definitions

  • the present invention provides a process for making aluminium-lithium alloys containing a high density of substantially uniformly distributed shear resistant dispersoids which markedly improve the strength and ductility thereof.
  • the low density aluminum-base alloys, of the invention consist essentially of the formula A lbal Zr a L b x c wherein X is at least one element selected from the group consisting of Cu, Mg, Si, Sc, Ti, U, Hf, Cr, V, Mn, Fe, Co and Ni, "a” ranges from about 0.15-2 wt%, "b” ranges from about 2.5-5 wt%, "c” . ranges from about 0-5 wt% and the balance is aluminum.
  • the icrostructure of these alloys is characterized by the precipitation of composite Al ⁇ Li, Zr) phase in the aluminum matrix thereof. This microstructure is developed in accordance with the process of the present
  • An alloy having a composition of Al-3.lLi-2Cu-lMg- 0.5Zr was developed for medium strength applications as shown in Table I.
  • the alloy was solutionized at 540°C for 2.5 hrs., quenched into water at about 20°C and given conventional single aging and the claimed double aging treatments.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Procédé de fabrication d'alliages à base d'aluminium de résistance et ductilité élevées et de faible densité consistant essentiellement en 2,5 à 5 % en poids de Li, 0,15 à 2 % en poids de Zr, 0 à 5 % en poids d'au moins un élément sélectionné dans le groupe composé de Cu, Mg, Si, Sc, Ti, U, Hf, Be, Cr, V, Mn, Fe, Co, Ni, le solde étant de l'Al. L'alliage reçoit de multiples traitements de vieillissement après avoir été mis en solution. La microstructure de l'alliage est caractérisée par la précipitation d'une phase composite dans sa matrice d'aluminium.
EP19860902711 1985-07-08 1986-04-11 Alliages en aluminium ductiles, de faible densite et de resistan ce elevee et procede de fabrication Expired EP0229075B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75243385A 1985-07-08 1985-07-08
US752433 1985-07-08

Publications (2)

Publication Number Publication Date
EP0229075A1 true EP0229075A1 (fr) 1987-07-22
EP0229075B1 EP0229075B1 (fr) 1989-09-27

Family

ID=25026317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860902711 Expired EP0229075B1 (fr) 1985-07-08 1986-04-11 Alliages en aluminium ductiles, de faible densite et de resistan ce elevee et procede de fabrication

Country Status (6)

Country Link
EP (1) EP0229075B1 (fr)
JP (1) JPS62502295A (fr)
AU (1) AU578828B2 (fr)
CA (1) CA1280342C (fr)
DE (1) DE3665884D1 (fr)
WO (1) WO1987000206A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178695A (en) * 1990-05-02 1993-01-12 Allied-Signal Inc. Strength enhancement of rapidly solidified aluminum-lithium through double aging
RU2163938C1 (ru) * 1999-08-09 2001-03-10 Государственное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" Коррозионно-стойкий сплав на основе алюминия, способ получения полуфабрикатов и изделие из него
RU2163940C1 (ru) * 1999-08-09 2001-03-10 Государственное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" Сплав на основе алюминия и изделие, выполненное из него
AUPQ485399A0 (en) 1999-12-23 2000-02-03 Commonwealth Scientific And Industrial Research Organisation Heat treatment of age-hardenable aluminium alloys
AUPR360801A0 (en) 2001-03-08 2001-04-05 Commonwealth Scientific And Industrial Research Organisation Heat treatment of age-hardenable aluminium alloys utilising secondary precipitation
DE102007056298A1 (de) * 2007-11-22 2009-05-28 Bayerische Motoren Werke Aktiengesellschaft Kolben
RU2513492C1 (ru) * 2013-02-21 2014-04-20 Открытое акционерное общество "Всероссийский институт легких сплавов" (ОАО "ВИЛС") Деформируемый термически неупрочняемый сплав на основе алюминия
CN104694786B (zh) * 2015-01-29 2016-09-07 东莞劲胜精密组件股份有限公司 一种铝合金
CN106756272A (zh) * 2016-12-14 2017-05-31 张家港市广大机械锻造有限公司 一种用于航空器壳体的合金制造方法
WO2019152664A1 (fr) * 2018-01-31 2019-08-08 Arconic Inc. Alliage d'aluminium résistant à la corrosion pour électrodes
KR102494830B1 (ko) * 2022-03-22 2023-02-06 국방과학연구소 다단 시효처리를 이용한 Al-Li 합금의 제조방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088511B1 (fr) * 1982-02-26 1986-09-17 Secretary of State for Defence in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland Alliages d'aluminium
CA1198656A (fr) * 1982-08-27 1985-12-31 Roger Grimes Alliages metalliques legers
JPS59118848A (ja) * 1982-12-27 1984-07-09 Sumitomo Light Metal Ind Ltd 電気抵抗を高めた構造用アルミニウム合金
EP0124286B1 (fr) * 1983-03-31 1986-08-27 Alcan International Limited Alliages d'aluminium
US4661172A (en) * 1984-02-29 1987-04-28 Allied Corporation Low density aluminum alloys and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8700206A1 *

Also Published As

Publication number Publication date
DE3665884D1 (en) 1989-11-02
CA1280342C (fr) 1991-02-19
AU5774986A (en) 1987-01-30
EP0229075B1 (fr) 1989-09-27
AU578828B2 (en) 1988-11-03
JPS648066B2 (fr) 1989-02-13
WO1987000206A1 (fr) 1987-01-15
JPS62502295A (ja) 1987-09-03

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