CN1274391A - 特别适用于汽车应用的、新的可焊、耐腐蚀、高镁含量的铝－镁合金 - Google Patents

特别适用于汽车应用的、新的可焊、耐腐蚀、高镁含量的铝－镁合金 Download PDF

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Publication number
CN1274391A
CN1274391A CN99801195A CN99801195A CN1274391A CN 1274391 A CN1274391 A CN 1274391A CN 99801195 A CN99801195 A CN 99801195A CN 99801195 A CN99801195 A CN 99801195A CN 1274391 A CN1274391 A CN 1274391A
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aluminium
weight
magnesium
scandium
magnesium alloy
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CN99801195A
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CN1107120C (zh
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B·兰克佐斯基
V·叶拉金
R·拉友
V·萨克哈罗夫
Y·费拉托夫
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Airbus Operations GmbH
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Daimler Benz AG
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    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Powder Metallurgy (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Arc Welding In General (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Extrusion Of Metal (AREA)
  • Conductive Materials (AREA)
  • Forging (AREA)

Abstract

可焊、高镁含量的铝—镁合金,由至少5—6重量%镁(Mg)、0.05—1.5重量%锆(Zr)、0.7—1重量%锰(Mn)、0.01—0.2重量%钛(Ti)、至少0.005重量%铈(Ce)、0.05—0.5重量%一种或多种钪族元素和/或铽(Tb),其中至少含有钪、以及铝和不可避免的杂质,杂质中至多有0.2重量%硅(Si)。

Description

特别适用于汽车应用的、新的 可焊、耐腐蚀、高镁含量的铝-镁合金
本发明涉及一种可焊、耐腐蚀、高镁含量的铝-镁合金，它含有一种三元铝-钪-锆相作为基本成分。这种合金已于例如US 5,624,632中已知，且由于它的低密度、高强度和耐腐蚀而首先用于航空应用中。加入稀土或类似稀土元素能在该铝-镁合金中产生弥散体，按上述US专利，这种弥散体产生较高的强度和耐腐蚀性。上述US专利来叙及这种合金的可焊接性。
本发明的目的是提供一种可焊、耐腐蚀、高镁含量的铝-镁合金，其强度和耐腐蚀性至少与所说已知合金一样好，并显示了一种高的再结晶临界值，这导致好的可焊接性。该目的可按权利要求1的铝-镁合金达到。
由于该合金的可焊接性和强度，它特别适用于制造汽车车体，且相比于已知的合金还添加了钛和铈。当一种合金的锰对钪之比＜2时，它具有特别好的耐腐蚀性。不同于已知合金含有的钛含量还起着组织颗粒细化剂和提高强度的作用，因为钛可替代在三元Al-Sc-Zr相中的锆，其中钛的可溶性低于锆的，添加铈同样起着提高强度和进一步提高伸展极限及导致热稳定性的效果。
现已证明，至少在某种限度内钪可被铽替代。但是必须加入比被替代的钪量更多的铽，以获得不变的性能。
一种特别牢固的和耐腐蚀的合金含有至少0.15重量％钪。优选加入0.05-0.35重量％的镧系元素(Lanthaniden)，该含量范围是针对使用一种镧系混合物时的混合物总重量而言的。该合金承受至多0.2重量％的硅杂质；初步地说，高于这个含量水平则损伤合金的动力性能。

Claims (5)

1.可焊、高镁含量的铝-镁合金，由至少5-6重量％镁(Mg)、0.05-0.15重量％锆(Zr)、0.7-1重量％锰(Mn)、0.01-0.2重量％钛(Ti)、至少0.005重量％铈(Ce)、0.05-0.5重量％一种或多种钪族元素和/或铽(Tb)，其中至少含有钪、以及铝和不可避免的杂质，杂质中至多有0.2重量％硅(Si)。
2.按权利要求1的铝-镁合金，其特征在于，锰与钪的含量比小于2。
3.按权利要求1的铝-镁合金，其特征在于，含有至少0.15重量％钪(Sc)。
4.按权利要求1或2的铝-镁合金，其特征在于，含有0.05-0.45重量％的一种或多种镧系元素、尤其是铈(Ce)、钕(Nd)、铕(Eu)、钆(Gd)、镝(Dy)、钬(Ho)或铒(Er)。
5.用于汽车制造的、轧制的、挤压的、焊接的或锻造的构件，由按权利要求1-3中之一的铝-镁合金组成。
CN99801195A 1998-08-21 1999-08-10 特别适用于汽车应用的、新的可焊、耐腐蚀、高镁含量的铝－镁合金 Expired - Lifetime CN1107120C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838015.1 1998-08-21
DE19838015A DE19838015C2 (de) 1998-08-21 1998-08-21 Gewalztes, stranggepreßtes, geschweißtes oder geschmiedetes Bauteil aus einer schweißbaren, korrosionsbeständigen hochmagnesiumhaltigen Aluminium-Magnesium-Legierung

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CN1274391A true CN1274391A (zh) 2000-11-22
CN1107120C CN1107120C (zh) 2003-04-30

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US (1) US6315948B1 (zh)
EP (1) EP1025270B1 (zh)
JP (1) JP2002523621A (zh)
CN (1) CN1107120C (zh)
AT (1) ATE216735T1 (zh)
CA (1) CA2306726C (zh)
DE (2) DE19838015C2 (zh)
ES (1) ES2173759T3 (zh)
RU (1) RU2226567C2 (zh)
WO (1) WO2000011231A1 (zh)

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CA2306726C (en) 2008-07-29
US6315948B1 (en) 2001-11-13
DE19838015C2 (de) 2002-10-17
EP1025270B1 (de) 2002-04-24
EP1025270A1 (de) 2000-08-09
CA2306726A1 (en) 2000-03-02
ES2173759T3 (es) 2002-10-16
RU2226567C2 (ru) 2004-04-10
WO2000011231A1 (de) 2000-03-02
ATE216735T1 (de) 2002-05-15
JP2002523621A (ja) 2002-07-30
DE59901293D1 (de) 2002-05-29
DE19838015A1 (de) 2000-03-02
CN1107120C (zh) 2003-04-30

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