EP1339888B1 - Hochfeste magnesiumlegierung - Google Patents

Hochfeste magnesiumlegierung Download PDF

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Publication number
EP1339888B1
EP1339888B1 EP00966545A EP00966545A EP1339888B1 EP 1339888 B1 EP1339888 B1 EP 1339888B1 EP 00966545 A EP00966545 A EP 00966545A EP 00966545 A EP00966545 A EP 00966545A EP 1339888 B1 EP1339888 B1 EP 1339888B1
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EP
European Patent Office
Prior art keywords
alloy
added
strength
exhibited
alloys
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.)
Expired - Lifetime
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EP00966545A
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English (en)
French (fr)
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EP1339888A4 (de
EP1339888A1 (de
Inventor
Kwang Seon Shin
Soon Chan Park
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    • 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
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • C22C23/04—Alloys based on magnesium with zinc or cadmium 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

  • Table 1 shows tensile properties of commercial cast alloys and wrought alloys.
  • Table 1 Properties of Commercial Magnesium Alloys Alloys Composition (%) Tensile Properties Al Mn Th Zn Zr Others Yield Strength (MPa) Tensile Strength (Mpa) Elongation (%) Cast AZ91C- 8.7 0.13 - 0.7 - - 145 275 6 EQ21A- - - - - 0. 1.5 Ag, 195 235 2 HK31A- - - 3. - 0. - 105 220 8 WE54A- - - - - 0.
  • US-A-3 404 048 discloses only a pure ternary cast Mg-Zn-Mn alloy having a different weight ratios having improved strength and tensile strength (the claims, the tables in the specification). However, there is no teaching or suggestion to add Al as a forth component to the alloy.
  • the present invention provides a method for preparing the high strength magnesium alloy, in which an addition of Mn to a magnesium melt is achieved by adding a Zn-Mn mother alloy to the magnesium melt.
  • Si is hardly soluble in an Mg matrix
  • Si forms an Mg 2 Si phase, when it is added to the Mg matrix as an alloying element.
  • Such a compound may provide a dispersion strengthening effect when its morphology and/or size is modified in the preparation and heat treatment procedures of the wrought body.
  • the inventors experimentally found that a desired dispersion strengthening effect, as mentioned above, is obtained when Si is added to an Mg-Zn-Al-Mn-based quaternary alloy.
  • the content of Si is less than 0.1 wt.%, the intended effect of the Si addition can hardly be expected.
  • the content of Si is limited to a range of 0.1 ⁇ 4.0 wt.%, preferably a range of 1.5 ⁇ 3.0 wt.%, in accordance with the present invention.
  • the principal impurities of the Mg alloy should be appropriately limited because they mainly have fatally adverse affects on the corrosion resistance of the alloy, rather than on the mechanical properties of the alloy.
  • Impurities generally known include Fe, Ni, and Cu. Although Cu has adverse effects on corrosion resistance in Mg-Al-based alloys widely used, it has no significant effect in the Mg-Zn-based alloy according to the present invention.
  • Fe and Ni are regarded as impurities to be limited in their contents. Typically, these impurities are conservatively limited to a maximum content of 0.005 wt.%. Adverse effects resulting from Fe may be eliminated by an addition of Mn.
  • P. zone solvus temperature of the ⁇ 1 ' phase, and the primary aging time is determined to be a period of time enough to expect an improvement in hardness to a desired level.
  • the second aging temperature is limited to a range of 150 to 180°C. At a second aging temperature of less than 150°C, there is a problem associated with the execution of the aging process because a lot of time is required until a maximum hardness is obtained. At a second aging temperature exceeding 180°C, the maximum hardness obtained cannot reach a desired level even though it is rapidly obtained.
  • the wrought body is subjected, prior to the double aging process, to a solution heat treatment for 6 to 12 hours at a temperature of 340 to 410°C corresponding to a temperature range, in which precipitation phases possibly generated during the working process can be present in the form of solid solutions, in order to maximize the effect of the precipitation phase contributing to an improvement in strength.
  • the temperature range and period of the solution heat treatment are determined, based on the phase diagram of the Mg-Zn binary system, taking into consideration of conditions capable of allowing precipitation phases resulting from the major alloying element, that is, Zn, to be sufficiently dissolved, and a desired thermal stability of the alloy.
  • each alloy cast product prepared as above was subjected to a homogenization process at a temperature of 340 to 410°C for 12 hours.
  • the alloy cast product was then formed into a billet, which was, in turn, preheated at a temperature of 320 to 360°C for 30 minutes.
  • the billet was then extruded by an extrusion machine, in which the temperature of the billet container and die was set to a temperature of 320 to 360°C.
  • an extruded alloy product was prepared.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Powder Metallurgy (AREA)
  • Forging (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Extrusion Of Metal (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Claims (5)

  1. Hochfeste Magnesiumlegierung, bestehend im Wesentlichen aus 3 - 10 Gew.-% Zn, 0,25 - 3,0 Gew.-% Mn, die eine Ausscheidungsphase in der Legierung bildet,
    0,0 - 4,0 Gew.-% Si,
    0,0 - 2,0 Gew.-% Ca,
    1,0 - 6,0 Gew.-& Al
    und im Rest aus Mg und unvermeidlichen Verunreinigungen, bei der der Gehalt an Al nicht höher ist als der Gehalt an Zn.
  2. Hochfeste Magnesiumlegierung gemäß Anspruch 1, enthaltend 0,1 - 4,0 Gew.-% Si.
  3. Hochfeste Magnesiumlegierung gemäß Anspruch 1, enthaltend 0,1 - 2,0 Gew.-% Ca.
  4. Hochfeste Magnesiumlegierung gemäß Anspruch 1, bei der der Zn-Gehalt 5,0 - 7,0 Gew.-% beträgt.
  5. Hochfeste Magnesiumlegierung gemäß Anspruch 1, bei der der Mn-Gehalt 0,75 - 2,0 Gew.-% beträgt.
EP00966545A 2000-09-26 2000-09-26 Hochfeste magnesiumlegierung Expired - Lifetime EP1339888B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2000/001072 WO2002027053A1 (en) 2000-09-26 2000-09-26 High strength magnesium alloy and its preparation method

Publications (3)

Publication Number Publication Date
EP1339888A1 EP1339888A1 (de) 2003-09-03
EP1339888A4 EP1339888A4 (de) 2005-03-16
EP1339888B1 true EP1339888B1 (de) 2011-04-13

Family

ID=19198273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00966545A Expired - Lifetime EP1339888B1 (de) 2000-09-26 2000-09-26 Hochfeste magnesiumlegierung

Country Status (10)

Country Link
EP (1) EP1339888B1 (de)
JP (1) JP3891933B2 (de)
CN (1) CN100390313C (de)
AT (1) ATE505567T1 (de)
AU (2) AU2000276884B2 (de)
CA (1) CA2423459C (de)
DE (1) DE60045848D1 (de)
IL (1) IL154897A (de)
NO (1) NO20031349L (de)
WO (1) WO2002027053A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002950563A0 (en) * 2002-08-02 2002-09-12 Commonwealth Scientific And Industrial Research Organisation Age-Hardenable, Zinc-Containing Magnesium Alloys
CN1300357C (zh) * 2004-09-29 2007-02-14 上海交通大学 高强抗蠕变变形镁合金的制备工艺
CN100410407C (zh) * 2005-10-19 2008-08-13 郑州大学 Mg-Al-Si-Mn-Ca合金制备方法
JP2010047777A (ja) 2007-05-09 2010-03-04 National Institute For Materials Science Ｍｇ基合金
JP5289904B2 (ja) * 2008-11-18 2013-09-11 三協立山株式会社 マグネシウム合金押出形材の製造方法
CN101985715B (zh) * 2010-12-08 2012-07-04 沈阳工业大学 高性能铸造镁合金及其制备方法
KR101264219B1 (ko) * 2011-01-05 2013-05-14 주식회사 에너텍 마그네슘계 합금 및 그 제조방법
JP5590413B2 (ja) * 2011-03-22 2014-09-17 株式会社豊田自動織機 高熱伝導性マグネシウム合金
CN103849798B (zh) * 2012-11-30 2017-11-07 沈阳工业大学 一种高强度铸造镁合金及其制备方法
CN103436827B (zh) * 2013-09-04 2015-09-09 中南大学 一种大尺寸高强变形镁合金锻件的热处理工艺
WO2015147184A1 (ja) * 2014-03-28 2015-10-01 古河電気工業株式会社 マグネシウム合金管材とその製造方法、及びそれを用いてなるステントとその製造方法
CN104532094A (zh) * 2014-12-15 2015-04-22 镁联科技（芜湖）有限公司 铸造镁合金及其制备方法和应用
CN105714168A (zh) * 2016-03-25 2016-06-29 中国兵器科学研究院宁波分院 一种高屈服强度镁合金及其制备方法
CN105937005B (zh) * 2016-06-17 2019-12-06 东北大学秦皇岛分校 均匀分布粒状准晶和棒状相的时效强化镁合金及制备方法
CN108728709A (zh) * 2017-05-19 2018-11-02 曹丹丹 一种镁合金的制备方法
CN111218594A (zh) * 2018-11-26 2020-06-02 内蒙金属材料研究所 一种镁铍稀土压铸合金及其制备方法
CN110835702A (zh) * 2019-10-29 2020-02-25 天津东义镁制品股份有限公司 一种镁合金模板型材及其制备方法
CN113430403B (zh) * 2021-05-17 2022-05-31 中北大学 一种预时效制备高强韧稀土镁合金的方法
CN114107712B (zh) * 2021-11-26 2022-12-09 西安交通大学 一种医用镁基复合材料棒材及其制备方法
CN114318094A (zh) * 2021-12-20 2022-04-12 重庆大学 一种Mn颗粒增强的Mg-Zn复合材料及其制备方法
CN114703388A (zh) * 2022-04-12 2022-07-05 重庆大学 一种含Mn的Mg-Zn-Al系铸造镁合金晶粒细化的方法
CN115044813A (zh) * 2022-04-29 2022-09-13 北京工业大学 一种低成本高强度镁合金材料及其制备方法

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US1886251A (en) 1930-11-20 1932-11-01 Dow Chemical Co Magnesium-manganese-zinc alloys
GB1149502A (en) 1965-05-11 1969-04-23 Birmetals Ltd Improved heat-treatment for magnesium-base alloys
NO132492C (de) * 1973-10-01 1975-11-19 Nl Industries Inc
FR2642439B2 (de) 1988-02-26 1993-04-16 Pechiney Electrometallurgie
JPH0718364Y2 (ja) * 1989-02-03 1995-05-01 タイガー魔法瓶株式会社 食器乾燥器
US5087304A (en) * 1990-09-21 1992-02-11 Allied-Signal Inc. Hot rolled sheet of rapidly solidified magnesium base alloy
JP3184516B2 (ja) 1990-10-18 2001-07-09 住友金属鉱山株式会社 流電陽極用マグネシウム合金
JP3204572B2 (ja) * 1993-06-30 2001-09-04 株式会社豊田中央研究所 耐熱マグネシウム合金
JPH07316713A (ja) * 1994-05-25 1995-12-05 Kobe Steel Ltd 高強度高耐食性Ｍｇ基合金及び該合金よりなる鋳物の製法
JPH09310130A (ja) * 1996-05-21 1997-12-02 Sumikou Boshoku Kk 流電陽極用マグネシウム合金の製造方法
JPH10204556A (ja) * 1997-01-13 1998-08-04 Mitsui Mining & Smelting Co Ltd 高流動性マグネシウム合金及びその製造方法

Also Published As

Publication number Publication date
AU7688400A (en) 2002-04-08
NO20031349D0 (no) 2003-03-25
CA2423459C (en) 2009-09-15
JP3891933B2 (ja) 2007-03-14
IL154897A (en) 2009-12-24
WO2002027053A1 (en) 2002-04-04
CN100390313C (zh) 2008-05-28
CN1469937A (zh) 2004-01-21
NO20031349L (no) 2003-05-23
CA2423459A1 (en) 2002-04-04
JP2004510057A (ja) 2004-04-02
IL154897A0 (en) 2003-10-31
DE60045848D1 (de) 2011-05-26
ATE505567T1 (de) 2011-04-15
AU2000276884B2 (en) 2005-09-29
EP1339888A4 (de) 2005-03-16
EP1339888A1 (de) 2003-09-03

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