EP1896621B1 - Alliage d'aluminium - Google Patents

Alliage d'aluminium Download PDF

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Publication number
EP1896621B1
EP1896621B1 EP06741005A EP06741005A EP1896621B1 EP 1896621 B1 EP1896621 B1 EP 1896621B1 EP 06741005 A EP06741005 A EP 06741005A EP 06741005 A EP06741005 A EP 06741005A EP 1896621 B1 EP1896621 B1 EP 1896621B1
Authority
EP
European Patent Office
Prior art keywords
weight
aluminium alloy
alloys
samarium
cerium
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.)
Not-in-force
Application number
EP06741005A
Other languages
German (de)
English (en)
Other versions
EP1896621A2 (fr
Inventor
Günther TRENDA
Andreas Kraly
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.)
Aluminium Lend GmbH
Original Assignee
Aluminium Lend GmbH
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 Aluminium Lend GmbH filed Critical Aluminium Lend GmbH
Publication of EP1896621A2 publication Critical patent/EP1896621A2/fr
Application granted granted Critical
Publication of EP1896621B1 publication Critical patent/EP1896621B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C22C21/06—Alloys based on aluminium with magnesium 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
    • 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
    • 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
    • C22F1/043—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 silicon as the next major constituent

Definitions

  • the invention relates to an aluminum alloy, in particular an aluminum alloy, which in addition to aluminum magnesium and silicon as main alloying constituents and is intended for use in die casting and related processes.
  • Aluminum die casting parts have become particularly important in the automotive industry.
  • an aluminum alloy having> 3.0 to 7.0 wt% of magnesium, 1.0 to 3.0 wt% of silicon, 0.3 to 0.49 wt% of manganese, 0.1 to 0 , 3% by weight of chromium, 0 to 0.15% by weight of titanium, max. 0.15 wt .-% iron and each max. 0.00005% by weight of calcium and sodium and max. 0.0002 wt .-% phosphorus known.
  • an alloy which contains 3.0 to 6.0, preferably 4.6 to 5.8,% by weight of magnesium, 1.4 to 3.5, preferably 2.0 to 2.8,% by weight of silicon, 0.5 to 2.0, preferably 0.6 to 1.5 wt .-% manganese, max. 0.2, preferably 0.1 to 0.2 wt .-% titanium and max. 0.15, preferably max. Contains 0.1 wt .-% iron and is already in Rheoge Stahl.
  • AlMgSi alloys are intended for use in die casting and related processes. Already in the as-cast state they have similar strength and elongation values as AlSiMg alloys, eg the well-known AlSi7Mg0.3 alloy, in the fully cured state (which is referred to as "T6").
  • the 0.2% proof strength characterizes the transition from the elastic to the plastic deformation of a casting and is particularly relevant in connection with crash-relevant structural parts in the automotive industry.
  • heat treatment of die-cast parts of the above-mentioned AlMgSi alloys involves numerous disadvantages.
  • this eliminates the cost advantage that can be achieved by such alloys.
  • Other significant disadvantages of the heat treatment are typical defects in die cast parts such as distortion and especially bubbles, which are caused by thermal destruction of trapped mold release agents and are known by the term "blister".
  • blister a delay nullifies the process advantage of die-cast parts, namely the near-end production.
  • AT 412 726 shows an aluminum alloy containing, by weight, 0.3 to 4.5% Si, 1.0 to 8.0% Mg, 0.05 to 0.5% Sc, less than 0.7% Fe, less as 0.2% Zn and Cu, optionally one or more elements selected from the group 0.01 to 1.0% Mn, 0.01 to 1.0% Cr, 0.01 to 1.0% Ni, 0, 01 to 0.3% Ce, 0.01 to 0.3% La and further optional secondary alloying elements.
  • the alloy should be able to produce components close to the final dimensions by casting and have high mechanical strength values or be heat treatable.
  • the WO 00/43560 discloses an AlMgSi alloy which, by weight, contains 2.5 to 7% Mg, 1.0 to 3.0% Si, 0.3 to 0.49% Mn, 0.1 to 0.3% Cr , 0 to 0.15% Ti, max. 0.15% Fe, max. 0.00005% Ca, max. 0.00005% Na, max. 0.0002% P, other impurities in an amount of max. 0.02% and the remainder being Al and optionally 0.05 to 0.02% Zr.
  • the alloy should have good mechanical properties in the cast state, especially a high ductility. Z. Yin et al., "Effect of minor Sc and Zr on the microstructure and mechanical properties of Al-Mg based alloys", Materials Science and Engineering, Vol.
  • the object of the present invention is therefore to provide aluminum alloys of the AlMgSi type which are suitable for use in diecasting and have comparable strength properties compared to the alloys known from the prior art, but higher values with regard to the 0.2% proof stress .
  • Another object of the invention is to provide such aluminum alloys, which have the desired strength properties already in the cast state, so that a heat treatment of die castings and the associated disadvantages are avoided.
  • a zirconium content of 0.05 to 0.2 wt .-% is provided.
  • the rare earth metals samarium, cerium or lanthanum can be alloyed alone or in any combination. Particularly advantageous are combinations of samarium and cerium or samariam and lanthanum.
  • a particularly preferred alloy contains the rare earth metals samarium and cerium in an amount of 0.0050 to 0.8% by weight of samarium and 0.0050 to 0.8% by weight of cerium.
  • cerium also reduces the sticking tendency of the alloy in the diecasting tool, which additionally has an advantageous effect on the quality of the diecasting parts.
  • the present invention will be further illustrated with reference to the mechanical characteristics determined for the following alloys.
  • the mechanical characteristics were determined on step plates produced by die casting in the tensile test according to DIN EN 10002, wherein the 2.7 mm step was used for the tensile test.
  • This wall thickness range is preferably used for the production of weldable and possibly crashrelevanten structural parts.
  • the mechanical characteristics represent the average of 25 measurements.
  • the results of the tensile tests performed are shown in Table 1.
  • the reference alloy is an alloy whose composition corresponds to an alloy according to the invention, but does not contain any alloying with rare earth metals.
  • the strength values achievable with the aluminum alloys according to the invention are also at a level which is achieved with forgings made of AlSi1MgMn in the state T6, that is to say after a heat treatment. Because of this and the improved compared to the known aluminum alloys of AlMgSi-type 0.2% proof strength alloys of the invention for new applications, in particular for the production of highly loaded aluminum die cast parts, as they are increasingly of interest in the automotive industry, suitable.
  • the aluminum alloy according to the invention is used for the die casting, squeeze casting, thixoforming or thixoforging process and other processes which are based on shaping in the partially liquid state.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Body Structure For Vehicles (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Mold Materials And Core Materials (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Exhaust Silencers (AREA)

Claims (7)

  1. Alliage d'aluminium, caractérisé en ce qu'il contient 4,5 à 6,5 % en poids de magnésium,
    1,0 à 3,0 % en poids de silicium,
    0,3 à 1,0 % en poids de manganèse,
    0,02 à 0,3 % en poids de chrome,
    0,02 à 0,2 % en poids de titane,
    0,02 à 0,2 % en poids de zirconium,
    0,0050 à 1,6 % en poids d'un ou de plusieurs métaux de terres rares, sélectionnés parmi le samarium, le cérium et le lanthane,
    au maximum 0,2 % en poids de fer
    et de l'aluminium en tant que reste.
  2. Alliage d'aluminium selon la revendication 1, caractérisé en ce qu'il contient
    5,5 à 6,5 % en poids de magnésium,
    2,4 à 2,8 % en poids de silicium,
    0,4 à 0,6 % en poids de manganèse,
    0,05 à 0,15 % en poids de chrome.
  3. Alliage d'aluminium selon la revendication 1 ou 2, caractérisé en ce qu'il contient du zirconium à raison d'une quantité de 0,05 à 0,2 % en poids.
  4. Alliage d'aluminium selon une des revendications 1 à 3, caractérisé en ce que du cérium et du samarium sont contenus en tant que métaux de terres rares.
  5. Alliage d'aluminium selon une des revendications 1 à 4, caractérisé en ce qu'il contient
    0,0050 à 0,8 % en poids de samarium et
    0,0050 à 0,8 % en poids de cérium.
  6. Alliage d'aluminium selon une des revendications 1 à 3, caractérisé en ce que du lanthane et du samarium sont contenus en tant que métaux de terres rares.
  7. Utilisation d'un alliage d'aluminium selon l'une des revendications 1 à 6 pour l'emploi dans le procédé de moulage sous pression, de forgeage liquide, de thixoformage ou de thixoforgeage.
EP06741005A 2005-05-19 2006-05-18 Alliage d'aluminium Not-in-force EP1896621B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0085705A AT501867B1 (de) 2005-05-19 2005-05-19 Aluminiumlegierung
PCT/AT2006/000206 WO2006122341A2 (fr) 2005-05-19 2006-05-18 Alliage d'aluminium

Publications (2)

Publication Number Publication Date
EP1896621A2 EP1896621A2 (fr) 2008-03-12
EP1896621B1 true EP1896621B1 (fr) 2013-01-02

Family

ID=36617169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06741005A Not-in-force EP1896621B1 (fr) 2005-05-19 2006-05-18 Alliage d'aluminium

Country Status (12)

Country Link
US (1) US8337644B2 (fr)
EP (1) EP1896621B1 (fr)
JP (1) JP5435939B2 (fr)
KR (1) KR101466395B1 (fr)
AT (1) AT501867B1 (fr)
AU (1) AU2006246965B2 (fr)
BR (1) BRPI0611421B1 (fr)
CA (1) CA2645677C (fr)
NO (1) NO337042B1 (fr)
RU (1) RU2453622C2 (fr)
TW (1) TWI397591B (fr)
WO (1) WO2006122341A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA96812C2 (ru) * 2010-01-21 2011-12-12 Юлий Викторович Мильман Литейный сплав алюминия, содержащий магний и кремний
AT511397B1 (de) * 2011-05-03 2013-02-15 Sag Motion Ag Verfahren zur raffination und gefügemodifikation von aimgsi-legierungen
AT511207B1 (de) * 2011-09-20 2012-10-15 Salzburger Aluminium Ag Aluminiumlegierung mit scandium und zirkon
GB201205655D0 (en) * 2012-03-30 2012-05-16 Jaguar Cars Alloy and method of production thereof
CN102828075B (zh) * 2012-08-17 2014-02-26 南昌大学 一种Al-Mg-Sm稀土铸造铝合金及其制备方法
GB201402323D0 (en) 2014-02-11 2014-03-26 Univ Brunel A high strength cast aluminium alloy for high pressure die casting
CN104651682A (zh) * 2014-05-26 2015-05-27 章建平 一种铸造Al-10Mg合金的性能优化工艺
EP3235916B1 (fr) 2016-04-19 2018-08-15 Rheinfelden Alloys GmbH & Co. KG Alliage de moulage
EP3159422B1 (fr) 2016-04-19 2018-06-13 Rheinfelden Alloys GmbH & Co. KG Alliage d'aluminium pour moulage sous pression
DE112016006826T5 (de) * 2016-06-10 2019-01-10 GM Global Technology Operations LLC Magnesiumhaltige legierung auf aluminiumbasis zum dünnwandgiessen
KR101712328B1 (ko) * 2016-09-02 2017-03-03 엘에스전선 주식회사 고가공성 알루미늄 합금
CN108034871A (zh) * 2017-11-21 2018-05-15 保定隆达铝业有限公司 一种两幅式方向盘骨架铸造用的铝镁合金及其制备方法
KR102472890B1 (ko) * 2020-08-20 2022-12-02 ㈜에스엘엠글로벌 열전도율이 우수한 주조용 알루미늄 합금 및 알루미늄 합금 주조방법
CN114045419B (zh) * 2021-11-17 2022-11-18 帅翼驰新材料集团有限公司 用于建筑模板的压铸铝合金

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Also Published As

Publication number Publication date
EP1896621A2 (fr) 2008-03-12
US8337644B2 (en) 2012-12-25
CA2645677A1 (fr) 2006-11-23
AU2006246965B2 (en) 2012-05-31
WO2006122341A2 (fr) 2006-11-23
JP2008540843A (ja) 2008-11-20
AU2006246965A1 (en) 2006-11-23
WO2006122341A3 (fr) 2007-03-08
AT501867A1 (de) 2006-12-15
TWI397591B (zh) 2013-06-01
BRPI0611421A2 (pt) 2010-09-08
JP5435939B2 (ja) 2014-03-05
NO20076429L (no) 2007-12-13
KR101466395B1 (ko) 2014-11-27
KR20080017374A (ko) 2008-02-26
NO337042B1 (no) 2016-01-11
AT501867B1 (de) 2009-07-15
CA2645677C (fr) 2014-12-16
RU2007147204A (ru) 2009-11-27
TW200704785A (en) 2007-02-01
US20090214381A1 (en) 2009-08-27
BRPI0611421B1 (pt) 2016-01-12
RU2453622C2 (ru) 2012-06-20

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