EP2984201B1 - Verfahren zur hestellung einer aluminiumfreien magnesiumlegierung - Google Patents

Verfahren zur hestellung einer aluminiumfreien magnesiumlegierung Download PDF

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Publication number
EP2984201B1
EP2984201B1 EP14723691.3A EP14723691A EP2984201B1 EP 2984201 B1 EP2984201 B1 EP 2984201B1 EP 14723691 A EP14723691 A EP 14723691A EP 2984201 B1 EP2984201 B1 EP 2984201B1
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EP
European Patent Office
Prior art keywords
magnesium
aluminum
alloys
production
magnesium alloy
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EP14723691.3A
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German (de)
English (en)
French (fr)
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EP2984201A1 (de
Inventor
Ulrich Bruhnke
Ralf Anderseck
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
    • 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
    • C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon

Definitions

  • the invention relates to a method for producing an aluminum-free magnesium alloy, which is used for the production of extruded, continuously cast or die-cast semi-finished products or components and of sheet metal.
  • Magnesium alloys are lightweight materials that have a very low weight compared to the alloys of other metals and are used where a low weight plays an important role, especially in automotive engineering, engine construction and aerospace engineering.
  • magnesium alloys are of great interest as metallic construction materials, especially for vehicle and aircraft construction.
  • Weight reduction is particularly important in vehicle construction because additional elements are being installed due to increasing comfort and safety standards.
  • Lightweight construction is also important for the construction of energy-saving vehicles.
  • the processes - master forms by die casting as well as forming by extrusion, forging, rolling, stretching or deep drawing are becoming increasingly important. These processes can be used to manufacture lightweight components for which there is growing demand, particularly in vehicle construction.
  • the prior art includes alloys with advantageous mechanical properties, in particular with high tensile strength.
  • a magnesium alloy consisting of a composition of 0.5 to 10% of metals from the rare earth group, the remainder of magnesium with the proviso that the rare earths are at least 50%, preferably at least 75% neodymium, at most up to 25% lanthanum and Cerium separately or together and composed of praseodymium and small amounts of samarium and traces of the elements of the yttrium group as the remainder, with one or more of the following elements manganese, aluminum, calcium, thorium, mercury, beryllium, zinc, cadmium and zirconium being added.
  • a magnesium alloy which contains 2 to 8% of rare earth metals, the rare earth metal consisting of samarium.
  • magnesium alloys with advantageous mechanical properties include alloys which contain zinc and mixtures of rare earth metals which have a high proportion of cerium. Such an alloy contains about 4.5% by weight of zinc and about 1.0% by weight of rare earths, which have a high proportion of cerium. These alloys can achieve good mechanical properties, but are difficult to cast, making it difficult to cast parts of satisfactory quality. Welding can be difficult with complex composite parts.
  • Alloys with improved castability can be obtained through higher additions of zinc and rare earths. But these tend to be brittle. This can be avoided by a hydrating treatment, but this makes the production more expensive.
  • Magnesium alloys with a higher content of components of other metals, e.g. Aluminum and zinc, which solidify in fine-grained form, are much worse in terms of corrosion properties than pure magnesium or magnesium-manganese alloys.
  • the known magnesium alloys have the most diverse disadvantages.
  • the US 6 544 357 discloses a magnesium and aluminum alloy containing 0.1 or 0.2% by weight up to 30 or 40% by weight of La, Ce, Pr, Nd, Sm, Ti, V, Cr, Mu, Zr, Nb, Mo, Hf, Ta, W, Al, Ga, Si, B, Be, Ge, and Sb, among other elements.
  • the range of alloys that could possibly be produced here is so wide and unmanageable that it is impossible for a person skilled in the art to get hold of the alloy which is claimed below.
  • hot cracks can occur after casting in a casting process with a high cooling rate, for example during injection molding.
  • the strength decreases at higher temperatures.
  • the cold formability of the most common magnesium alloys is limited due to the hexagonal crystal structure and the low ductility. Most magnesium alloys behave brittle at room temperature. For certain forming processes for the production of semi-finished products from magnesium alloys, in addition to high tensile strength, ductile behavior is necessary. A higher ductility enables an improved forming and deformation behavior, possibly also a higher strength and toughness.
  • magnesium alloys have widely varying properties with the production state.
  • Another disadvantage in the production of magnesium alloys is that metallic manganese is difficult to dissolve in the magnesium melt or takes a long time to dissolve.
  • the object of the invention is to provide a method for producing an aluminum-free magnesium alloy which is suitable for the production of sheet metal, welding wire, extruded and / or die-cast profiles or components, that is to say the good deformation properties, high corrosion resistance, improved weldability , high yield strength and good cold formability.
  • Manganese (II) chlorides are used as manganese compounds.
  • Mozanite is used as the phosphorus compound.
  • the magnesium alloy has a yield strength Rp 0.2 of at least 120 Mpa and good strength properties over a larger temperature range and a high creep resistance with sufficient ductility.
  • the magnesium alloy produced in this way can be used for the production of metal sheets, semi-finished products or extruded and / or die-cast parts and profiles, and for the production of welding wires.
  • Special parts preferably for use in vehicle construction, train construction, shipbuilding and aircraft construction, such as seat, window or door frames, vehicle outer skins, housings, carriers, holders, supports and other small parts can then be produced from this.
  • a magnesium alloy for processing on extrusion plants results if these are made of aluminum-free magnesium Add 1.0 wt% cerium, 0.5 wt% lanthanum, 0.10 wt% scandium and 2.0 wt% manganese (II) chloride.
  • Another magnesium alloy results if it is made from aluminum-free magnesium by adding 1.0% by weight of cerium, 0.5% by weight of lanthanum, and 2.0% by weight of manganese (II) chloride and 0.1% by weight of monazite.
  • the alloys with this composition are characterized by good corrosion resistance, improved cold forming behavior, lower hot creep behavior and a high yield strength.
  • This magnesium alloy can be used in particular for the production of metal sheets, extruded and / or die-cast profiles or components, and for drawn welding wires.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP14723691.3A 2013-04-10 2014-04-08 Verfahren zur hestellung einer aluminiumfreien magnesiumlegierung Active EP2984201B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013006169.5A DE102013006169A1 (de) 2013-04-10 2013-04-10 Aluminiumfreie Magnesiumlegierung
PCT/DE2014/000178 WO2014166473A1 (de) 2013-04-10 2014-04-08 Aluminiumfreie magnesiumlegierung

Publications (2)

Publication Number Publication Date
EP2984201A1 EP2984201A1 (de) 2016-02-17
EP2984201B1 true EP2984201B1 (de) 2020-02-26

Family

ID=50721526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14723691.3A Active EP2984201B1 (de) 2013-04-10 2014-04-08 Verfahren zur hestellung einer aluminiumfreien magnesiumlegierung

Country Status (8)

Country Link
US (1) US10156004B2 (enExample)
EP (1) EP2984201B1 (enExample)
JP (1) JP2016519718A (enExample)
KR (1) KR20150140725A (enExample)
CN (1) CN105229191A (enExample)
CA (1) CA2909197C (enExample)
DE (2) DE102013006169A1 (enExample)
WO (1) WO2014166473A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013006170A1 (de) * 2013-04-10 2014-10-16 Ulrich Bruhnke Aluminiumfreie Magnesiumlegierung
CN106086560A (zh) * 2016-07-31 2016-11-09 余姚市婉珍五金厂 一种链条专用的合金材料及其制备方法
CN115846931B (zh) * 2023-01-29 2023-05-02 河北钢研德凯科技有限公司 一种镁合金焊丝及其制备方法和zm6镁合金焊接的方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE679156C (de) 1931-02-13 1939-07-29 American Magnesium Corp Magnesiumlegierung
DE806055C (de) 1948-01-06 1951-06-11 Magnesium Elektron Ltd Magnesiumlegierungen
US3240593A (en) 1961-06-02 1966-03-15 Knapsack Ag Corrosion resistant magnesium alloys having a grain-refined structure
GB1073629A (en) 1964-08-07 1967-06-28 Magnesium Elektron Ltd Improvements in or relating to magnesium base alloys
FR2587037A1 (fr) * 1985-09-10 1987-03-13 Rhone Poulenc Spec Chim Procede de traitement de minerais de terres rares
DE4208504A1 (de) 1992-03-17 1993-09-23 Metallgesellschaft Ag Maschinenbauteil
JP2582027B2 (ja) * 1993-03-26 1997-02-19 三井金属鉱業株式会社 マグネシウム合金鋳物の製造方法
JP2730847B2 (ja) 1993-06-28 1998-03-25 宇部興産株式会社 高温クリープ強度に優れた鋳物用マグネシウム合金
EP0772698A1 (en) 1994-08-01 1997-05-14 Hehmann, Franz, Dr Selected processing for non-equilibrium light alloys and products
JP3229954B2 (ja) 1996-02-27 2001-11-19 本田技研工業株式会社 耐熱性マグネシウム合金
DE19638764A1 (de) 1996-09-21 1998-03-26 Daimler Benz Ag Magnesiumwerkstoff und dessen Verwendung
DE19915276A1 (de) 1999-04-03 2000-10-05 Volkswagen Ag Verfahren zum Herstellen einer Magnesiumlegierung durch Strangpressen und Verwendung der stranggepreßten Halbzeuge und Bauteile
US20080138236A1 (en) * 2005-03-08 2008-06-12 G. Alloy Technology Co, Ltd. Mg Alloys Containing Misch Metal Manufacturing Method of Wrought Mg Alloys Containing Misch Metal, and Wrought Mg Alloys Thereby
WO2008133096A1 (ja) * 2007-04-13 2008-11-06 Taisei Plas Co., Ltd. マグネシウム合金複合体とその製造方法
ATE445667T1 (de) * 2007-08-10 2009-10-15 Enthone Chromfreie beize für kunststoffoberflächen
DE102009038449B4 (de) * 2009-08-21 2017-01-05 Techmag Ag Magnesiumlegierung
US8435444B2 (en) * 2009-08-26 2013-05-07 Techmag Ag Magnesium alloy
KR101133775B1 (ko) * 2009-09-21 2012-08-24 한국생산기술연구원 마그네슘 모합금, 이의 제조 방법, 이를 이용한 금속 합금, 및 이의 제조 방법
CN102648300B (zh) * 2009-12-07 2015-06-17 友和安股份公司 镁合金
CN101956111B (zh) * 2010-10-21 2012-07-04 重庆大学 加Sc强化ZK60镁合金的方法
JP2013001964A (ja) * 2011-06-16 2013-01-07 Osaka Prefecture Univ レアアースの回収方法
DE102011112561A1 (de) * 2011-09-08 2013-03-14 Techmag Ag Verfahren zur Herstellung einer Magnesiumlegierung und eine danach hergestellte Magnesiumlegierung
CN102776427A (zh) * 2012-08-17 2012-11-14 临江市东锋有色金属股份有限公司 一种含稀土耐热镁合金

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
DE112014001938A5 (de) 2016-03-03
WO2014166473A1 (de) 2014-10-16
JP2016519718A (ja) 2016-07-07
US10156004B2 (en) 2018-12-18
CA2909197A1 (en) 2014-10-16
US20160060733A1 (en) 2016-03-03
CA2909197C (en) 2018-06-12
CN105229191A (zh) 2016-01-06
KR20150140725A (ko) 2015-12-16
DE102013006169A1 (de) 2014-10-16
EP2984201A1 (de) 2016-02-17

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