CA2068597A1 - Process for isotropic enhancement through thick aluminum alloy products - Google Patents

Process for isotropic enhancement through thick aluminum alloy products

Info

Publication number
CA2068597A1
CA2068597A1 CA 2068597 CA2068597A CA2068597A1 CA 2068597 A1 CA2068597 A1 CA 2068597A1 CA 2068597 CA2068597 CA 2068597 CA 2068597 A CA2068597 A CA 2068597A CA 2068597 A1 CA2068597 A1 CA 2068597A1
Authority
CA
Canada
Prior art keywords
alloy products
aluminum alloy
thick aluminum
tempering
relates
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
CA 2068597
Other languages
French (fr)
Other versions
CA2068597C (en
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
Individual
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 Individual filed Critical Individual
Publication of CA2068597A1 publication Critical patent/CA2068597A1/en
Application granted granted Critical
Publication of CA2068597C publication Critical patent/CA2068597C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • 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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Powder Metallurgy (AREA)
  • Conductive Materials (AREA)

Abstract

L'invention concerne une méthode pour l'amélioration de l'isotropie des caractéristiques de traction dans tout plan contenant la direction travers-court de produits épais en alliage d'Al à durcissement structural, en particulier ceux appartenant à la série 7000 selon la désignation de l'Aluminium Association. La méthode consiste à couler un produit sous forme de lingots à teneurs en Si et/ou Fe limitées contenant également de faibles teneurs en éléments anti-recristallisants (Zr, Mn, Cr, Hf, Ti), l'homogénéiser, et à le transformer de manière à obtenir un taux de recristallisation supérieur à 15% et de préférence 25% et à traiter thermiquement le produit obtenu par trempe et revenu, et de préférence sur-revenu. L'invention concerne également les produits obtenus qui trouvent notamment leur application principale dans les domaines aéronautiques et spatiaux.The invention relates to a method for improving the isotropy of the tensile characteristics 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. of the Aluminum Association. The method consists in casting a product in the form of ingots with limited Si and / or Fe contents also containing low contents in anti-recrystallizing elements (Zr, Mn, Cr, Hf, Ti), homogenizing it, and transforming it so as to obtain a recrystallization rate greater than 15% and preferably 25% and to heat treat the product obtained by quenching and tempering, and preferably over-tempering. The invention also relates to the products obtained which find their main application in particular in the aeronautical and space fields.

CA 2068597 1991-05-14 1992-05-13 Process for isotropic enhancement through thick aluminum alloy products Expired - Lifetime CA2068597C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9105987A FR2676462B1 (en) 1991-05-14 1991-05-14 PROCESS FOR IMPROVING ISOTROPY THROUGH THICK PRODUCTS OF AL ALLOYS.
FR9105987 1991-05-14

Publications (2)

Publication Number Publication Date
CA2068597A1 true CA2068597A1 (en) 1992-11-15
CA2068597C CA2068597C (en) 2002-01-15

Family

ID=9412868

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2068597 Expired - Lifetime CA2068597C (en) 1991-05-14 1992-05-13 Process for isotropic enhancement through thick aluminum alloy products

Country Status (4)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2707092B1 (en) * 1993-06-28 1995-08-25 Pechiney Rhenalu Metallurgical product in Al alloy with structural hardening having a continuous variation in the properties of use in a given direction and a method and device for obtaining the same.
US20050006010A1 (en) * 2002-06-24 2005-01-13 Rinze Benedictus Method for producing a high strength Al-Zn-Mg-Cu alloy

Family Cites Families (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 (en) * 1977-06-02 1978-12-29 Cegedur THERMAL TREATMENT PROCESS OF ALUMINUM ALLOY SHEETS
FR2517702B1 (en) * 1981-12-03 1985-11-15 Gerzat Metallurg
FR2561264B1 (en) * 1984-03-15 1986-06-27 Cegedur PROCESS FOR OBTAINING HIGH DUCTILITY AND ISOTROPY AL-LI-MG-CU ALLOY PRODUCTS
US4648913A (en) * 1984-03-29 1987-03-10 Aluminum Company Of America Aluminum-lithium alloys and method

Also Published As

Publication number Publication date
DE69212533T2 (en) 1996-11-28
DE69212533D1 (en) 1996-09-05
EP0514292B1 (en) 1996-07-31
FR2676462B1 (en) 1995-01-13
EP0514292A1 (en) 1992-11-19
FR2676462A1 (en) 1992-11-20
CA2068597C (en) 2002-01-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202