Global Patent Index - EP 1640466 A1

EP 1640466 A1 20060329 - Magnesium alloy and production process thereof

Title (en)

Magnesium alloy and production process thereof

Title (de)

Magnesiumlegierung und Herstellungsverfahren

Title (fr)

Alliage de magnésium et procédé de fabrication

Publication

EP 1640466 A1 20060329 (EN)

Application

EP 05020951 A 20050926

Priority

JP 2004280878 A 20040928

Abstract (en)

Provided are a magnesium alloy which is inexpensive, can be produced at a high yield, and has both high strength and high ductility; and a production process of the magnesium alloy. The magnesium alloy contains from 1 to 4 atomic % of Zn and from 1 to 4.5 atomic % of Y at a Zn/Y composition ratio ranging from 0.6 to 1.3, and contains both an intermetallic compound Mg 3 Y 2 Zn 3 , and Mg 12 YZn having a long period structure. It may contain from 2 to 3.5 atomic % of Zn and from 2 to 4.5 atomic % of Y at a Zn/Y composition ratio falling within a range of from 0.8 to 1.2. It may contain from 1 to 4 atomic % of Zn, from 1 to 4.5 atomic % of Y and from 0.1 to 0.5 atomic % of Zr and contains, as a remaining portion, Mg and inevitable impurities. An alloy structure having both an intermetallic compound Mg 3 Y 2 Zn 3 and Mg 12 YZn having a long period structure is available by casting an Mg alloy containing from 1 to 4 atomic % of Zn and from 1 to 4.5 atomic % of Y at a Zn/Y composition ratio ranging from 0.6 to 1.3, followed by plastic processing.

IPC 8 full level

C22C 23/04 (2006.01); C22F 1/06 (2006.01)

CPC (source: EP US)

C22C 23/04 (2013.01 - EP US); C22C 23/06 (2013.01 - EP US); C22F 1/06 (2013.01 - EP US)

Citation (search report)

  • [A] US 2003029526 A1 20030213 - KIM DO HYANG [KR], et al
  • [A] EP 0575796 A1 19931229 - NORSK HYDRO TECHNOLOGY [NL] & INORGANIC MATERIALS USA, vol. 25, no. 1, January 1989 (1989-01-01), pages 50 - 54, XP008054202, ISSN: 0020-1685 & NINTH INTERNATIONAL CONFERENCE ON RAPIDLY QUENCHED AND METASTABLE MATERIALS 25-30 AUG. 1996 BRATISLAVA, SLOVAKIA, vol. A226-228, 1997, Materials Science & Engineering A (Structural Materials: Properties, Microstructure and Processing) Elsevier Switzerland, pages 861 - 866, XP008054234, ISSN: 0921-5093 & MATERIALS TRANSACTIONS JAPAN INST. METALS JAPAN, vol. 44, no. 4, 2003, pages 463 - 467, XP008054213, ISSN: 1345-9678 & JOURNAL OF MATERIALS SCIENCE LETTERS KLUWER ACADEMIC PUBLISHERS USA, vol. 19, no. 9, 2000, pages 813 - 815, XP008054200, ISSN: 0261-8028
  • [DA] PATENT ABSTRACTS OF JAPAN vol. 2003, no. 01 14 January 2003 (2003-01-14)
  • [A] DATABASE INSPEC [online] THE INSTITUTION OF ELECTRICAL ENGINEERS, STEVENAGE, GB; January 1989 (1989-01-01), MURATOVA E V ET AL: "Phase equilibria in the Mg-Y-La-Zn system at temperatures below the solidus", XP002349969, Database accession no. 3606647
  • [A] DATABASE INSPEC [online] THE INSTITUTION OF ELECTRICAL ENGINEERS, STEVENAGE, GB; 15 June 1997 (1997-06-15), SUGAMATA M ET AL: "Structures and mechanical properties of rapidly solidified Mg-Y based alloys", XP002349970, Database accession no. 5694945
  • [A] DATABASE INSPEC [online] THE INSTITUTION OF ELECTRICAL ENGINEERS, STEVENAGE, GB; April 2003 (2003-04-01), WATANABE H ET AL: "Mechanical properties of Mg-Y-Zn alloy processed by equal-channel-angular extrusion", XP002349971, Database accession no. 7729726
  • [A] DATABASE INSPEC [online] THE INSTITUTION OF ELECTRICAL ENGINEERS, STEVENAGE, GB; 1 May 2000 (2000-05-01), LUO Z P ET AL: "High-resolution electron microscopy on the X-Mg12ZnY phase in a high strength Mg-Zn-Zr-Y magnesium alloy", XP002350242, Database accession no. 6606719
  • [A] PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1640466 A1 20060329; EP 1640466 B1 20090805; DE 602005015799 D1 20090917; JP 2006097037 A 20060413; JP 4500916 B2 20100714; US 2006065332 A1 20060330

DOCDB simple family (application)

EP 05020951 A 20050926; DE 602005015799 T 20050926; JP 2004280878 A 20040928; US 23522905 A 20050927