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EP0514292A1 - Verfahren zur Verbesserung der Querisotropie eines dünnen Produktes aus einer AA 7000 Aluminium-Legierung - Google Patents

Verfahren zur Verbesserung der Querisotropie eines dünnen Produktes aus einer AA 7000 Aluminium-Legierung Download PDF

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Publication number
EP0514292A1
EP0514292A1 EP92420148A EP92420148A EP0514292A1 EP 0514292 A1 EP0514292 A1 EP 0514292A1 EP 92420148 A EP92420148 A EP 92420148A EP 92420148 A EP92420148 A EP 92420148A EP 0514292 A1 EP0514292 A1 EP 0514292A1
Authority
EP
European Patent Office
Prior art keywords
alloy
product
contents
improving
aluminum association
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
EP92420148A
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English (en)
French (fr)
Other versions
EP0514292B1 (de
Inventor
Philippe Lassince
Pierre Sainfort
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.)
Constellium Issoire SAS
Original Assignee
Pechiney Rhenalu SAS
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 Pechiney Rhenalu SAS filed Critical Pechiney Rhenalu SAS
Publication of EP0514292A1 publication Critical patent/EP0514292A1/de
Application granted granted Critical
Publication of EP0514292B1 publication Critical patent/EP0514292B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/053—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

Definitions

  • the invention relates to a method for improving the isotropy of the mechanical tensile properties in any plane containing the short-short direction of thick Al-alloy products with structural hardening, in particular those belonging to the 7000 series according to the designation. from the Aluminum Association.
  • thick wrought aluminum alloy products have a zone of low ductility associated with low mechanical tensile strengths in any plane containing the short-short direction (TC) in a zone located at approximately 40-60 ° from this cross-short direction
  • the end of the hot transformation must be carried out at a sufficiently low temperature (T ° C), typically below 390 ° C, and preferably below 370 ° C, these temperatures depending in particular on the nature and the nuance of the alloy considered, on the thickness of the product, with a sufficiently high rate of deformation generally> 100% and preferably> 150%.
  • T ° C sufficiently low temperature
  • Fig. 1 represents the correlation between ⁇ A / A (defined below) in the long / cross-short plane (L-TC) and the mid-thickness recrystallization rate for thick sheets in 7010.
  • Fig. 2 represents a comparison in the cross-long / cross-short plane (TL / TC) of the isotropy (of the elongation%) of thick sheets in 7010 in states T7651 and T7451.
  • the anisotropy in the plane considered is characterized by the parameter ⁇ A / A where ⁇ A is the difference in elongation in traction between the direction TC and the direction corresponding to the minimum elongation, reported at elongation through short A.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Rolling (AREA)
  • Powder Metallurgy (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Conductive Materials (AREA)
EP92420148A 1991-05-14 1992-05-11 Verfahren zur Verbesserung der Querisotropie eines dünnen Produktes aus einer AA 7000 Aluminium-Legierung Expired - Lifetime EP0514292B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9105987 1991-05-14
FR9105987A FR2676462B1 (fr) 1991-05-14 1991-05-14 Procede pour ameliorer l'isotropie travers des produits epais en alliages d'al.

Publications (2)

Publication Number Publication Date
EP0514292A1 true EP0514292A1 (de) 1992-11-19
EP0514292B1 EP0514292B1 (de) 1996-07-31

Family

ID=9412868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92420148A Expired - Lifetime EP0514292B1 (de) 1991-05-14 1992-05-11 Verfahren zur Verbesserung der Querisotropie eines dünnen Produktes aus einer AA 7000 Aluminium-Legierung

Country Status (4)

Country Link
EP (1) EP0514292B1 (de)
CA (1) CA2068597C (de)
DE (1) DE69212533T2 (de)
FR (1) FR2676462B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0630986A1 (de) * 1993-06-28 1994-12-28 Pechiney Rhenalu Blech oder Platte aus einer hartbaren Aluminiumlegierung mit einer kontinuierlichen Änderung der Gebrauchseigenschaften in einer gegebenen Richtung, sowie Verfahren und Einrichtung zur Herstellung
FR2841264A1 (fr) * 2002-06-24 2003-12-26 Corus Aluminium Walzprod Gmbh PROCEDE DE PREPARATION D'UN ALLIAGE AI-Zn-Mg-Cu A HAUTE RESISTANCE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847681A (en) * 1973-11-09 1974-11-12 Us Army Processes for the fabrication of 7000 series aluminum alloys
FR2393070A1 (fr) * 1977-06-02 1978-12-29 Cegedur Procede de traitement thermique de toles en alliages d'aluminium
EP0081441A1 (de) * 1981-12-03 1983-06-15 Societe Metallurgique De Gerzat Verfahren zur Herstellung von extrudierten Werkstücken aus hochfesten Legierungen des Typs Al-Zn-Mg-Cu, mit Zähigkeit in Querrichtung
EP0157600A2 (de) * 1984-03-29 1985-10-09 Aluminum Company Of America Aluminium-Lithium-Legierungen
EP0157711A1 (de) * 1984-03-15 1985-10-09 Pechiney Rhenalu Verfahren zur Herstellung von Gegenständen aus Al-Li-Mg-Cu Legierungen mit hoher Duktilität und Isotropie

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847681A (en) * 1973-11-09 1974-11-12 Us Army Processes for the fabrication of 7000 series aluminum alloys
FR2393070A1 (fr) * 1977-06-02 1978-12-29 Cegedur Procede de traitement thermique de toles en alliages d'aluminium
EP0081441A1 (de) * 1981-12-03 1983-06-15 Societe Metallurgique De Gerzat Verfahren zur Herstellung von extrudierten Werkstücken aus hochfesten Legierungen des Typs Al-Zn-Mg-Cu, mit Zähigkeit in Querrichtung
EP0157711A1 (de) * 1984-03-15 1985-10-09 Pechiney Rhenalu Verfahren zur Herstellung von Gegenständen aus Al-Li-Mg-Cu Legierungen mit hoher Duktilität und Isotropie
EP0157600A2 (de) * 1984-03-29 1985-10-09 Aluminum Company Of America Aluminium-Lithium-Legierungen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0630986A1 (de) * 1993-06-28 1994-12-28 Pechiney Rhenalu Blech oder Platte aus einer hartbaren Aluminiumlegierung mit einer kontinuierlichen Änderung der Gebrauchseigenschaften in einer gegebenen Richtung, sowie Verfahren und Einrichtung zur Herstellung
FR2707092A1 (fr) * 1993-06-28 1995-01-06 Pechiney Rhenalu Produit métallurgique en alliage d'Al à durcissement structural présentant une variation continue des propriétés d'emploi suivant une direction donnée et un procédé et dispositif d'obtention de celui-ci.
US5547524A (en) * 1993-06-28 1996-08-20 Pechiney Rhenalu Hardened aluminum alloy stock materials having continuous variation in properties and process for producing
FR2841264A1 (fr) * 2002-06-24 2003-12-26 Corus Aluminium Walzprod Gmbh PROCEDE DE PREPARATION D'UN ALLIAGE AI-Zn-Mg-Cu A HAUTE RESISTANCE
WO2004001080A1 (en) * 2002-06-24 2003-12-31 Corus Aluminium Walzprodukte Gmbh METHOD FOR PRODUCING A HIGH STRENGTH Al-Zn-Mg-Cu ALLOY
GB2402943A (en) * 2002-06-24 2004-12-22 Corus Aluminium Walzprod Gmbh Method for producing a high strength A1-Zn-Mg-Cu alloy
GB2402943B (en) * 2002-06-24 2006-03-29 Corus Aluminium Walzprod Gmbh Method for producing a high strength Al-Zn-Mg-Cu alloy

Also Published As

Publication number Publication date
CA2068597A1 (fr) 1992-11-15
FR2676462B1 (fr) 1995-01-13
DE69212533D1 (de) 1996-09-05
FR2676462A1 (fr) 1992-11-20
DE69212533T2 (de) 1996-11-28
EP0514292B1 (de) 1996-07-31
CA2068597C (fr) 2002-01-15

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