CREEP RESISTANT MAGNESIUM ALLOYS FOR DIE CASTING

摘要

A magnesium based alloy contains from about 2 to about 6 wt.% aluminum and from about 0.1 to about 0.8 wt.% calcium, the balance comprising magnesium. The alloy includes the intermetallic compound Al2Ca at the grain boundaries of the magnesium crystals. The alloy according to this invention may have a creep extension of less than about 0.5 % at about 150 ~C.