EP1418247A1 - Alliage de magnésium - Google Patents

Alliage de magnésium Download PDF

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Publication number
EP1418247A1
EP1418247A1 EP20030022658 EP03022658A EP1418247A1 EP 1418247 A1 EP1418247 A1 EP 1418247A1 EP 20030022658 EP20030022658 EP 20030022658 EP 03022658 A EP03022658 A EP 03022658A EP 1418247 A1 EP1418247 A1 EP 1418247A1
Authority
EP
European Patent Office
Prior art keywords
alloy
weight
strontium
content
max
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
EP20030022658
Other languages
German (de)
English (en)
Other versions
EP1418247B1 (fr
Inventor
Olaf Hentschel
Johann Wolf
Frank Dr. Dörnenburg
Andreas Dr. Fent
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1418247A1 publication Critical patent/EP1418247A1/fr
Application granted granted Critical
Publication of EP1418247B1 publication Critical patent/EP1418247B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22C23/02—Alloys based on magnesium with aluminium 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 magnesium alloy.
  • Magnesium alloys containing aluminum are used for Casting various components used. To yours Creep and hot tensile strength are called further alloy components calcium, strontium and Rare earth elements added.
  • a magnesium alloy is known from US Pat. No. 6,322,644, which contains 2 - 9% aluminum and 0.5 - 7% strontium, furthermore optionally up to 0.60% manganese and up to 0.35% Zinc.
  • the object of the invention is one in terms of their Creep, warm draft and casting properties improved To provide magnesium alloy.
  • this is due to an alloy Magnesium base achieved, the 4-9, preferably 5-8, in particular 5.6 - 6.4% by weight aluminum, 0.5 - 4, preferably 1.5 - 3.5, in particular 2.0 - 2.6% by weight Strontium and 0.03-2.5, preferably 0.1-1.5, contains in particular 0.2-1% by weight barium.
  • Al increases the strength and hardness of Mg an aluminum content of less than 4% high viscosity the castability of the alloy deteriorated, occur with an aluminum content of over 9 % Phases leading to embrittlement.
  • the Fe content is preferably at most 0.004 %, the Cu content at a maximum of 0.01% and the Ni content at maximum 0.001%.
  • the alloy according to the invention can contain 0-0.3% zinc and contain 0-0.60% manganese. Zinc works in combination with A1 to increase strength. In addition, the Alloy contain a maximum of 0.05% silicon.
  • the alloy according to the invention has a high Creep resistance and hot tensile strength. Also owns they have excellent casting properties. So was with Computed tomography has a very low volume deficit in the cast components found. She also has one significantly reduced tendency to crack.
  • the alloy according to the invention is particularly for the Suitable for die casting. However, it can also be used in others Casting methods are used, especially in Sand casting or permanent mold casting.
  • the alloy according to the invention is primarily for Motor vehicle components suitable, especially in Powertrain, for example for the Cylinder crankcase of a liquid-cooled Internal combustion engine or for the gearbox.
  • the hot tensile strength was 100 ° C at the test temperature and 150 ° C with three samples each. At 100 ° C the tensile strength is 290 MPa, at 150 ° C 163 MPa The 0.2% proof stress is 131 MPa at 100 ° C and at 150 ° C 108 MPa.
  • the commercially available magnesium alloy AM60 with 4.6 - 5.4% Al and the specified others Ingredients in the amounts specified (but without barium and without strontium) a tensile strength of 200 MPa 100 ° C and 150 MPa at 150 ° C and a 0.2% proof stress at 100 ° C from 120 MPa and at 150 ° C from 70 MPa.
  • the creep strain measurement was based on DIN EN10291 Creep tests without heat treatment with a diameter of 6 mm and a parallel measuring length of 25 mm carried out.
  • the stress level is 50 MPa Test temperature at 150 ° C. With a test duration of 120 Hours of creep were measured at 0.14%. In contrast, the creep at the mentioned commercially available magnesium alloy without barium and without Strontium under the same conditions after a Test duration of 120 hours 2.2%.

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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP20030022658 2002-11-06 2003-10-07 Alliage de magnésium Expired - Lifetime EP1418247B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10251663 2002-11-06
DE2002151663 DE10251663A1 (de) 2002-11-06 2002-11-06 Magnesiumlegierung

Publications (2)

Publication Number Publication Date
EP1418247A1 true EP1418247A1 (fr) 2004-05-12
EP1418247B1 EP1418247B1 (fr) 2007-12-12

Family

ID=32103373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030022658 Expired - Lifetime EP1418247B1 (fr) 2002-11-06 2003-10-07 Alliage de magnésium

Country Status (2)

Country Link
EP (1) EP1418247B1 (fr)
DE (2) DE10251663A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7547411B2 (en) 2007-03-08 2009-06-16 Dead Sea Manesium Ltd. Creep-resistant magnesium alloy for casting
CN102605729A (zh) * 2012-04-16 2012-07-25 上海应用技术学院 变道栏移位装置
EP2369025A4 (fr) * 2008-11-14 2016-03-09 Toyota Jidoshokki Kk Alliage de magnésium et pièce coulée en alliage de magnésium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143564A (en) * 1991-03-28 1992-09-01 Mcgill University Low porosity, fine grain sized strontium-treated magnesium alloy castings
US5223215A (en) * 1990-09-28 1993-06-29 Pechiney Electrometallurgie Method of improving the performance of magnesium alloys in respect of microshrinkage
EP0549998A1 (fr) * 1991-12-26 1993-07-07 Ykk Corporation Alliages à base de magnésium à haute résistance
JPH0718364A (ja) * 1993-06-30 1995-01-20 Toyota Central Res & Dev Lab Inc 耐熱マグネシウム合金
US5613999A (en) * 1992-09-11 1997-03-25 Nippon Kinzoku Co., Ltd. Method for producing magnesium
EP1048743A1 (fr) * 1999-04-30 2000-11-02 General Motors Corporation Pièces coulées en alliage de magnesium, résistantes au fluage
US6322644B1 (en) * 1999-12-15 2001-11-27 Norands, Inc. Magnesium-based casting alloys having improved elevated temperature performance

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259578B (de) * 1959-05-01 1968-01-25 Dow Chemical Co Verfahren zur pulvermetallurgischen Herstellung einer dispersionsverfestigten Magnesiumlegierung
US3182390A (en) * 1959-05-01 1965-05-11 Dow Chemical Co Method of die-expressing a magnesiumbase alloy
US3119725A (en) * 1961-11-27 1964-01-28 Dow Chemical Co Die-expressed article of magnesium-base alloy and method of making
FR2430458A1 (fr) * 1978-07-07 1980-02-01 Anvar Nouveaux alliages metalliques de magnesium, leur preparation et leur application notamment au stockage de l'hydrogene
WO1994016114A1 (fr) * 1993-01-15 1994-07-21 United Technologies Automotive, Inc. Volant en magnesium

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5223215A (en) * 1990-09-28 1993-06-29 Pechiney Electrometallurgie Method of improving the performance of magnesium alloys in respect of microshrinkage
US5143564A (en) * 1991-03-28 1992-09-01 Mcgill University Low porosity, fine grain sized strontium-treated magnesium alloy castings
EP0549998A1 (fr) * 1991-12-26 1993-07-07 Ykk Corporation Alliages à base de magnésium à haute résistance
US5613999A (en) * 1992-09-11 1997-03-25 Nippon Kinzoku Co., Ltd. Method for producing magnesium
JPH0718364A (ja) * 1993-06-30 1995-01-20 Toyota Central Res & Dev Lab Inc 耐熱マグネシウム合金
EP1048743A1 (fr) * 1999-04-30 2000-11-02 General Motors Corporation Pièces coulées en alliage de magnesium, résistantes au fluage
US6322644B1 (en) * 1999-12-15 2001-11-27 Norands, Inc. Magnesium-based casting alloys having improved elevated temperature performance

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7547411B2 (en) 2007-03-08 2009-06-16 Dead Sea Manesium Ltd. Creep-resistant magnesium alloy for casting
EP2369025A4 (fr) * 2008-11-14 2016-03-09 Toyota Jidoshokki Kk Alliage de magnésium et pièce coulée en alliage de magnésium
CN102605729A (zh) * 2012-04-16 2012-07-25 上海应用技术学院 变道栏移位装置
CN102605729B (zh) * 2012-04-16 2014-06-11 上海应用技术学院 变道栏移位装置

Also Published As

Publication number Publication date
DE10251663A1 (de) 2004-05-19
DE50308775D1 (de) 2008-01-24
EP1418247B1 (fr) 2007-12-12

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