MAGNESIUM ALLOY FOR DIE CASTING AND MAGNESIUM DIE-CAST PRODUCT USING THE SAME

PROBLEM TO BE SOLVED: To provide a die-casting magnesium alloy which improves high-temperature creep performance without reducing room-temperature strength, and to provide a magnesium die-cast product using it. SOLUTION: An AZ91-base alloy includes at least one of 0.1 to 2.0 wt.% silicon, 0.1 to 1.2 wt.% misch metal including a rare earth element and 0.2 to 0.8 wt.% zirconium, which are added to an AZ91 alloy containing 6.0 to 11.0 wt.% aluminum, 0.1 to 2.5 wt.% zinc and 0.1 to 0.5 wt.% manganese. The die-casting magnesium alloy includes at least one of 0.1 to 1.5 wt.% antimony and 0.2 to 3.5 wt.% calcium, and 0.1 to 2.5 wt.% strontium, which are added to the AZ91-base alloy, and unavoidably contained other components. The magnesium die-cast product is manufactured with the use of the alloy. COPYRIGHT: (C)2006,JPO&NCIPI