Global Patent Index - EP 2481825 B1

EP 2481825 B1 20130508 - Magnesium alloy containing rare earth metals

Title (en)

Magnesium alloy containing rare earth metals

Title (de)

Seltenerdmetalle enthaltende Magnesiumlegierung

Title (fr)

Alliage de magnésium contenant des métaux de terres rares

Publication

EP 2481825 B1 20130508 (EN)

Application

EP 11152827 A 20110201

Priority

EP 11152827 A 20110201

Abstract (en)

[origin: EP2481825A1] The present invention relates to single-phase solid solution magnesium alloys suitable for the applications as cast or wrought. These alloys are prepared by multi-microalloying with rare earth elements (including gadolinium, yttrium, dysprosium, samarium, lanthanum, cerium, neodymium and praseodymium). Each alloy contains 0.5 to less than 5 wt.% rare earth elements with a content of 0.05-2.0 % by weight. The total amount of rare earth elements is controlled below 5 % by weight in order for economical considerations. The amount of grain refiner calcium or zirconium is in the range of 0.05-0.6 % by weight. These alloys can be prepared by die casting, permanent casting, chill casting, semi-solid processes, continuous casting and continuous twin roll casting.

IPC 8 full level

C22C 23/04 (2006.01); C22C 23/06 (2006.01)

CPC (source: EP US)

C22C 23/04 (2013.01 - EP US); C22C 23/06 (2013.01 - EP US)

Citation (examination)

  • YAMADA KENTARO ET AL: "Precipitate microstructures of high strength Mg-Gd-Y- Zn - Zr alloys", 1 January 2006, ADVANCED MATERIALS RESEARCH,, PAGE(S) 417 - 420, ISSN: 1022-6680, XP009092939
  • HONMA ET AL: "Effect of Zn additions on the age-hardening of Mg-2.0Gd-1.2Y-0.2Zr alloys", ACTA MATERIALIA, ELSEVIER, OXFORD, GB, vol. 55, no. 12, 8 June 2007 (2007-06-08), pages 4137 - 4150, XP022110797, ISSN: 1359-6454, DOI: 10.1016/J.ACTAMAT.2007.02.036

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2481825 A1 20120801; EP 2481825 B1 20130508; CA 2765484 A1 20120801; CN 102628134 A 20120808; CN 102628134 B 20160629; ES 2423354 T3 20130919; US 2012195787 A1 20120802

DOCDB simple family (application)

EP 11152827 A 20110201; CA 2765484 A 20120125; CN 201210022436 A 20120201; ES 11152827 T 20110201; US 201213352595 A 20120118