EP2088216B1 - Alliage d'aluminium - Google Patents

Alliage d'aluminium Download PDF

Info

Publication number
EP2088216B1
EP2088216B1 EP20090000917 EP09000917A EP2088216B1 EP 2088216 B1 EP2088216 B1 EP 2088216B1 EP 20090000917 EP20090000917 EP 20090000917 EP 09000917 A EP09000917 A EP 09000917A EP 2088216 B1 EP2088216 B1 EP 2088216B1
Authority
EP
European Patent Office
Prior art keywords
weight
vanadium
gew
bis
titanium
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.)
Active
Application number
EP20090000917
Other languages
German (de)
English (en)
Other versions
EP2088216A1 (fr
Inventor
Franz Dr. Riemelmoser
Thomas Waltenberger
Peter Prof. Dr. Uggowitzer
Jörg Prof. Dr. Löffler
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.)
Audi AG
Original Assignee
Audi AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40551896&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2088216(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Audi AG filed Critical Audi AG
Publication of EP2088216A1 publication Critical patent/EP2088216A1/fr
Application granted granted Critical
Publication of EP2088216B1 publication Critical patent/EP2088216B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C21/02—Alloys based on aluminium with silicon 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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon

Definitions

  • the present invention relates to aluminum alloys of the alloy group 6xxx and extruded, safety-relevant motor vehicle profile components produced therefrom.
  • Aluminum alloys of class 6xxx are AlMgSi type aluminum alloys. These can be assigned to the family of hardenable aluminum alloys. Such aluminum alloys generally contain magnesium in a concentration range of 0.2 to 1.2 wt% and silicon in a concentration range of 0.3 to 1.5 wt%. Curing aluminum alloys are in the JP 2007-270204 A . DE 32 43 371 A1 , of the EP 0 805 219 A1 and the WO 00/52216 A1 described. Depending on the desired property profile, the magnesium and silicon concentrations are selected and, if appropriate, further alloying elements are added, for example manganese up to 0.6% by weight, copper up to 0.5% by weight, chromium up to 0.25% by weight.
  • % and vanadium up to 0.35 wt .-%.
  • Such alloys are known and are described, for example, under the designations AA6016 (0.2 to 0.6 wt.% Mg, 0.9 to 1.5 wt.% Si), AA6060 (0.35 to 0.6 wt. -% Mg, 0.3 to 0.6 wt .-% Si) and AA6061 (0.8 to 1.2 wt .-% Mg, 0.4 to 0.8 wt .-% Si) produced and sold.
  • Aluminum alloys of the type mentioned which are used in the field of vehicle construction, must have a high degree of energy absorption capacity or a high absorption of deformation energy before fracture. This is achieved inter alia by a high solidification exponent or by a high uniformity and elongation at break of the alloy. Such aluminum alloys are used, for example, in body structures, in so-called crash management systems and chassis parts.
  • Known aluminum alloys of the type AlMgSi with high strength eg AW 6082
  • the aluminum alloy according to the invention has a high yield strength, a high solidification coefficient, a high elongation at break and a high degree of formability and energy absorption capacity.
  • the refinement of the aluminum alloy according to the invention is based inter alia on the finding that the high-melting alloying elements titanium, vanadium, hafnium and tantalum on the one hand solidify from the melt due to their enrichment on the solidification front and on the other hand inhibit grain growth in hot working by the formation of fine intermetallic phases.
  • the addition of the high-melting transition metals titanium, vanadium, hafnium and tantalum is responsible for the fact that the aluminum alloy according to the invention is finely recrystallised after hot working or after a solution annealing.
  • the intermetallic phases formed during the solidification of the residual melt also influence the formation of the iron-containing phases of the AlFeMnSi type, which are advantageously present in a finer form and more homogeneously distributed.
  • a homogeneous and finely recrystallized microstructure with fine intermetallic phases is characterized by a higher level of strength in comparison to known coarsely recrystallized alloys and moreover has a higher solidification coefficient or a higher ductility than known aluminum alloys.
  • the solidification of the high-melting alloying elements titanium, vanadium, hafnium and tantalum which occurs during solidification on the solidification front, delays the grain growth during solidification and at the same time leads to the activation of new solidification nuclei.
  • the alloying elements titanium, vanadium, hafnium and tantalum have the highest degree of accumulation tendency. Compared to the main alloying elements magnesium and silicon, the enrichment of these alloying elements is much more pronounced, for titanium it is about a factor of 70 stronger, for vanadium about a factor of 30, for hafnium about a factor of 10 and for tantalum about a factor of 4 ,
  • the aluminum alloys according to the invention advantageously have a strictly balanced element concentration and properties of microalloys by the refractory transition metals titanium, vanadium, hafnium and tantalum.
  • the interactions of all alloying elements and the reaction kinetics as well as the grain growth criteria are taken into account, the advantages being in particular a homogeneous fine grain structure of the resulting aluminum alloy, a high cold workability and an improvement in ductility.
  • the 70-fold concentration of titanium and the 30-fold concentration of vanadium in the alloy in the sum is less than 15 wt .-%.
  • concentration of the alloying elements titanium, vanadium, hafnium and tantalum or titanium and vanadium are particularly advantageous with regard to the formation of favorable intermetallic phases. This results in a particularly homogeneous and fine-grained microstructure of the resulting Aluminum alloy and high ductility of a semifinished product or component produced therefrom. In addition, they have a high cold deformation capacity.
  • An inventive safety-relevant profile component consists of an aluminum alloy as described above.
  • the use of the aluminum alloy according to the invention results in a particularly high deformability of the component and a high energy absorption capacity of the component.
  • the components may be, for example, structural components of motor vehicles.
  • a semifinished product according to the invention consists of an aluminum alloy described above.
  • the semi-finished product advantageously has a high deformability due to the homogeneous, fine-grained microstructure and therefore, for example, a high cold workability.
  • the aluminum alloy according to the invention can be used in a variety of applications.
  • This process ensures the production of a profile part with a high yield strength, a high solidification coefficient, a high uniformity or elongation at break and increased formability and increased energy absorption capacity.
  • a particularly favorable property profile of the semifinished product with regard to its energy absorption capacity is achieved on the extruded semifinished product.
  • the hardening treatment according to process step d) can take place during process step c). Further advantageous embodiments of the method are shown when the solution annealing according to method step d) in a temperature range between 500 ° C and 560 ° C for a period of between 5 min. and 2 hours.
  • the hot aging or heat curing according to process step e) is advantageously carried out in a temperature range between 140 ° C and 215 ° C for a period of between 1 h and 20 h.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Body Structure For Vehicles (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)

Claims (7)

  1. Alliage d'aluminium du groupe d'alliage 6xxx, caractérisé par la composition suivante :
    0,3 à 11,5 % en poids de silicium,
    0,06 à 1,2 % en poids de magnésium
    0,05 à 0,9 % en poids de manganèse,
    0,01 à 0,5 % en poids de cuivre,
    0,05 à 0,5 % en poids de fer,
    0,05 à 0,25 % en poids de chrome,
    0,02 à 0,9 % en poids de titane,
    0,05 à 0,3 % en poids de vanadium,
    0,02 à 0,3 % en poids d'hafnium,
    0,02 à 0,3 % en poids de tantale, et, pour le reste, de l'aluminium et des impuretés inévitables au maximum en totalité à raison de 0,1 % en poids.
  2. Alliage d'aluminium selon la revendication 1, caractérisé en ce que l'alliage contient :
    0,6 à 1,3 % en poids de silicium
    0,4 à 1,2 % en poids de magnésium
    0,2 à 0,6 % en poids de manganèse,
    0,2 à 0,5 % en poids de cuivre,
    0,2 à 0,5 % en poids de fer,
    0,05 à 0,25 % en poids de chrome,
    0,02 à 0,2 % en poids de titane,
    0,05 à 0,2 % en poids de vanadium,
    0,02 à 0,2 % en poids d'hafnium,
    0,02 à 0,2 % en poids de tantale, et, pour le reste, de l'aluminium et des impuretés inévitables au maximum en totalité à raison de 0,1 % en poids.
  3. Alliage d'aluminium selon la revendication 1, caractérisé en ce que l'alliage contient :
    0,9 à 1,1 % en poids de silicium,
    0,7 à 0,9 % en poids de magnésium
    0,3 à 0,5 % en poids de manganèse,
    0,2 à 0,5 % en poids de cuivre,
    0,2 à 0,4 % en poids de fer,
    0,05 à 0,15 % en poids de chrome,
    0,02 à 0,15 % en poids de titane,
    0,05 à 0,2 % en poids de vanadium,
    0,02 à 0,15 % en poids d'hafnium,
    0,02 à 0,15 % en poids de tantale, et, pour le reste, de l'aluminium et des impuretés inévitables au maximum en totalité à raison de 0,1 % en poids.
  4. Alliage d'aluminium selon l'une quelconque des revendications précédentes, caractérisé en ce que la concentration des éléments titane, vanadium, hafnium et tantale dans l'alliage atteint au total moins de 0,4 % en poids.
  5. Alliage d'aluminium selon l'une quelconque des revendications précédentes, caractérisé en ce que 70 fois la concentration de titane et 30 fois la concentration de vanadium dans l'alliage font au total moins de 15,0 % en poids.
  6. Utilisation d'un alliage d'aluminium selon l'une quelconque des revendications 1 à 5 pour la fabrication d'un composant profilé de véhicule automobile extrudé relevant de la sécurité.
  7. Composant de véhicule automobile extrudé relevant de la sécurité formé d'un alliage d'aluminium selon l'une quelconque des revendications 1 à 5.
EP20090000917 2008-02-07 2009-01-23 Alliage d'aluminium Active EP2088216B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810008326 DE102008008326A1 (de) 2008-02-07 2008-02-07 Aluminiumlegierung

Publications (2)

Publication Number Publication Date
EP2088216A1 EP2088216A1 (fr) 2009-08-12
EP2088216B1 true EP2088216B1 (fr) 2013-03-20

Family

ID=40551896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090000917 Active EP2088216B1 (fr) 2008-02-07 2009-01-23 Alliage d'aluminium

Country Status (3)

Country Link
EP (1) EP2088216B1 (fr)
DE (1) DE102008008326A1 (fr)
ES (1) ES2403211T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013525608A (ja) 2010-04-26 2013-06-20 サパ アーベー 階層状の微細構造を有する損傷耐性アルミ材
EP2841611B1 (fr) * 2012-04-25 2018-04-04 Norsk Hydro ASA Profil extrudé d'une alliage d'aluminium Al-Mg-Si à propriétés améliorées
DE102018216224A1 (de) * 2018-07-02 2020-01-02 Volkswagen Aktiengesellschaft Motor für ein Kraftfahrzeug aufweisend ein eine Leichtmetalllegierung umfassendes Bauteil sowie Zylinderkopf und Zylinderkurbelgehäuse
CN112522552B (zh) * 2020-11-04 2022-04-26 佛山科学技术学院 一种耐蚀的铝合金及其制备方法和应用

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287365A1 (fr) * 1974-10-10 1976-05-07 Cegedur Pare-choc de securite pour vehicule ou engin de manutention
US4072542A (en) * 1975-07-02 1978-02-07 Kobe Steel, Ltd. Alloy sheet metal for fins of heat exchanger and process for preparation thereof
DE3243371A1 (de) 1982-09-13 1984-03-15 Schweizerische Aluminium AG, 3965 Chippis Aluminiumlegierung
US4637842A (en) * 1984-03-13 1987-01-20 Alcan International Limited Production of aluminum alloy sheet and articles fabricated therefrom
JPS63157831A (ja) * 1986-12-18 1988-06-30 Toyo Alum Kk 耐熱性アルミニウム合金
JP2753739B2 (ja) * 1989-08-31 1998-05-20 健 増本 アルミニウム基合金箔又はアルミニウム基合金細線の製造方法
JPH07166285A (ja) * 1993-06-08 1995-06-27 Shinko Alcoa Yuso Kizai Kk 焼付硬化型Ａｌ合金板及びその製造方法
JP3157068B2 (ja) * 1993-07-05 2001-04-16 古河電気工業株式会社 成形用アルミニウム合金板材の製造方法
JPH07228957A (ja) * 1994-02-18 1995-08-29 Sky Alum Co Ltd 成形性および焼付硬化性に優れたアルミニウム合金板の製造方法
EP0805219B1 (fr) 1996-05-03 2004-07-28 Aluminum Company Of America Pièces pour la châssis d'un véhicule ayant un absorption d'énergie amélioré, procédé pour leur fabrication et un alliage
ATE272725T1 (de) * 1998-02-17 2004-08-15 Corus Aluminium Profiltechnik Aluminium-legierung und verfahren zu ihrer herstellung
JP2000178673A (ja) * 1998-12-10 2000-06-27 Kobe Steel Ltd 高成形性アルミニウム合金板の中間材
CH693673A5 (de) 1999-03-03 2003-12-15 Alcan Tech & Man Ag Verwendung einer Aluminiumlegierung vom Typ AlMgSi zur Herstellung von Strukturbauteilen.
JP2000282162A (ja) * 1999-03-30 2000-10-10 Nippon Steel Corp 腐食疲労強度に優れたアルミニウム合金押出材
JP2001262265A (ja) * 2000-03-22 2001-09-26 Kobe Steel Ltd 高成形性アルミニウム合金板の熱間圧延材
WO2004031424A1 (fr) * 2002-10-01 2004-04-15 Asahi Tec Corporation Alliage en aluminium pour moulage-forgeage, article moule/forge en aluminium et procede de fabrication de cet article
FR2857376B1 (fr) * 2003-07-09 2008-08-22 Corus Aluminium Nv ALLIAGE DE AlMgSi
TW200530406A (en) * 2003-12-26 2005-09-16 Nippon Light Metal Co Method for producing Al-Mg-Si based aluminum alloy plate excellent in bake-hardenability
WO2006005573A1 (fr) * 2004-07-09 2006-01-19 Corus Aluminium Nv Procede de production d'une matiere sous forme de feuille en alliage d'aluminium a reponse amelioree au durcissement par etuvage
DE102005060297A1 (de) * 2005-11-14 2007-05-16 Fuchs Kg Otto Energieabsorbtionsbauteil
JP4944474B2 (ja) * 2006-03-30 2012-05-30 株式会社神戸製鋼所 伸びフランジ性に優れたアルミニウム合金板およびその製造方法

Also Published As

Publication number Publication date
DE102008008326A1 (de) 2011-03-03
EP2088216A1 (fr) 2009-08-12
ES2403211T3 (es) 2013-05-16

Similar Documents

Publication Publication Date Title
DE102013012259B3 (de) Aluminium-Werkstoff mit verbesserter Ausscheidungshärtung, Verfahren zu dessen Herstellung und Verwendung des Aluminium-Werkstoffes
DE10352932B4 (de) Aluminium-Gusslegierung
DE10230710B4 (de) Schweißbare hochfeste Al-Mg-Si-Legierung
EP3235917B1 (fr) Alliage d'aluminium pour moulage sous pression
DE112015000499B4 (de) Verfahren zum Herstellen eines plastisch verformten Aluminiumlegierungsprodukts
EP3370900B1 (fr) Pièce coulée en alliage léger et procédé de sa fabrication
DE602005005509T2 (de) Aluminiumformplatte mit hoher härte und verfahren zur herstellung dieser platte
EP3176275B1 (fr) Alliage de coulée sous pression de silicium/aluminium. procédé de fabrication d'un composant coulé sous pression en alliage et composants de carrosserie comprenant un tel composant coulé sous pression
EP3314031A1 (fr) Bande almg à haute résistance aisément façonnable et procédé de production de celle-ci
DE112008003052T5 (de) Produkt aus Al-Mg-Zn-Knetlegierung und Herstellungsverfahren dafür
DE202006006518U1 (de) Aluminiumgusslegierung
DE102009036056A1 (de) Al-Druckgusslegierung für dickwandige Druckgussteile
EP2888382A1 (fr) Bande d'alliage d'aluminium résistante à la corrosion intercristalline et son procédé de fabrication
WO2014166475A1 (fr) Alliage de magnésium exempt d'aluminium
DE112017007033T5 (de) Aluminiumlegierungen
EP2088216B1 (fr) Alliage d'aluminium
DE102011112005A1 (de) Aluminium-Silizium-Legierung
DE102013002632B4 (de) Aluminium-Silizium-Druckgusslegierung und Verfahren zur Herstellung eines Druckgussbauteils
DE602004005529T2 (de) Schmiedealuminiumlegierung
JP6810178B2 (ja) 高強度アルミニウム合金およびその製造方法、該アルミニウム合金を用いたアルミニウム合金板並びにアルミニウム合金部材
WO2013034134A1 (fr) Procédé de préparation d'un alliage de magnésium et alliage de magnésium ainsi préparé
DE10248594A1 (de) Verfahren zum Herstellen eines Scandium (Sc)- und/oder Zirkon (Zr)- legierten Aluminiumblechmaterials mit hoher Risszähigkeit
DE102019202676B4 (de) Gussbauteile mit hoher Festigkeit und Duktilität und geringer Heißrissneigung
AT507490B1 (de) Aluminiumlegierung, verfahren zu deren herstellung und deren verwendung
CH700835B1 (de) Aluminium-Verbundwalzblechprodukt.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

17P Request for examination filed

Effective date: 20100212

AKX Designation fees paid

Designated state(s): DE ES FR IT SE

17Q First examination report despatched

Effective date: 20100324

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT SE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009006511

Country of ref document: DE

Effective date: 20130516

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2403211

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20130516

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: CONSTELLIUM CRV

Effective date: 20131218

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502009006511

Country of ref document: DE

Effective date: 20131218

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

PLBD Termination of opposition procedure: decision despatched

Free format text: ORIGINAL CODE: EPIDOSNOPC1

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 20141009

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230529

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20240201

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240131

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20240125

Year of fee payment: 16

Ref country code: IT

Payment date: 20240129

Year of fee payment: 16

Ref country code: FR

Payment date: 20240126

Year of fee payment: 16