EP 2135965 A4 20100331 - HEAT-RESISTANT MAGNESIUM ALLOY
Title (en)
HEAT-RESISTANT MAGNESIUM ALLOY
Title (de)
HITZEBESTÄNDIGE MAGNESIUMLEGIERUNG
Title (fr)
ALLIAGE DE MAGNÉSIUM RÉSISTANT À LA CHALEUR
Publication
Application
Priority
- JP 2008052085 W 20080201
- JP 2007097760 A 20070403
Abstract (en)
[origin: EP2135965A1] A heat-resistant magnesium alloy according to the present invention includes Mg, a major component; a first alloying element "M1" being any one or more members that are selected from the group consisting of Al and Ni; a second alloying element "M2" being any one or more members that are selected from the group consisting of Mn, Ba, Cr and Fe; and Ca; and it has a metallic structure including: Mg crystalline grains; plate-shaped precipitated substances being precipitated within grains of the Mg crystalline grains; and grain-boundary crystallized substances being crystallized at grain boundaries between the Mg crystalline grains to form networks that are continuous microscopically. Since the plate-shaped precipitated substances exist within the Mg crystalline grains, the movements of dislocation within the Mg crystalline grains are prevented, and accordingly it becomes less likely to deform. Moreover, since the grain-boundary crystallized substances, which form the networks, are present continuously microscopically at the grain boundaries between the Mg crystalline grains, the strength at the grain boundaries improves. The heat-resistant magnesium alloy according to the present invention in which both of the Mg crystalline grains' granular interior and the grain boundaries between the Mg crystalline grains are strengthened exhibits high mechanical characteristics even in high-temperature regions.
IPC 8 full level
C22C 23/00 (2006.01); C22C 23/02 (2006.01)
CPC (source: EP US)
C22C 23/00 (2013.01 - EP US); C22C 23/02 (2013.01 - EP US)
Citation (search report)
- [X] EP 1418248 A1 20040512 - TOYOTA JIDOSHOKKI KK [JP]
- [X] US 2004151613 A1 20040805 - TANIZAWA MOTOHARU [JP], et al
- [X] EP 1048743 A1 20001102 - GEN MOTORS CORP [US]
- [A] EP 0990710 A1 20000405 - MAZDA MOTOR [JP]
- [A] EP 0799901 A1 19971008 - MAZDA MOTOR [JP]
- [A] US 2003039575 A1 20030227 - UCHIDA RYOUHEI [JP], et al
- [A] JP H08269609 A 19961015 - TOYOTA CENTRAL RES & DEV
- [A] JP H0625790 A 19940201 - MITSUI MINING & SMELTING CO, et al
- [A] JP 2001107171 A 20010417 - JAPAN STEEL WORKS LTD
- [A] JP H09271919 A 19971021 - MITSUI MINING & SMELTING CO, et al
- See references of WO 2008120497A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2135965 A1 20091223; EP 2135965 A4 20100331; CN 101652489 A 20100217; JP WO2008120497 A1 20100715; US 2010116378 A1 20100513; WO 2008120497 A1 20081009
DOCDB simple family (application)
EP 08710964 A 20080201; CN 200880011043 A 20080201; JP 2008052085 W 20080201; JP 2009507427 A 20080201; US 59450808 A 20080201