Global Patent Index - EP 1241276 A1

EP 1241276 A1 2002-09-18 - Creep-resistant magnesium alloy

Title (en)

Creep-resistant magnesium alloy

Title (de)

Kriechbeständige Magnesiumlegierung

Title (fr)

Alliage de magnesium résistant au fluage

Publication

EP 1241276 A1 (EN)

Application

EP 02251809 A

Priority

JP 2001072993 A

Abstract (en)

A creep-resistant magnesium alloy having creep resistance superior to AE42 alloy and having relatively high corrosion resistance. The magnesium alloy has superior castability without any generation of open cracks and is less expensive than AE42 alloy for production. The creep-resistant magnesium alloy is made from 1.5 to 4.0 mass % of Al, 0.5 to 1.8 mass % of Si, 0.05 to 0.6 mass % of RE, 0.005 to 1.5 mass % of Sr or Sb, and the reminder made from Mg and unavoidable impurities. Creep resistance is enhanced when 0.3 to 1.5 mass % of Ca is included. Further, corrosion resistance is enhanced when 0.1 to 0.4 mass % of Mn is included.

IPC 1-7 (main, further and additional classification)

C22C 23/02

IPC 8 full level (invention and additional information)

C22C 23/02 (2006.01)

CPC (invention and additional information)

C22C 23/02 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1241276 A1 20020918; CN 1382823 A 20021204; JP 2002275569 A 20020925; US 2003037846 A1 20030227

INPADOC legal status


2005-04-06 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20041001

2003-06-04 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): DE FR GB

2003-01-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20021106

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI