Creep resistant magnesium alloys for die casting

Details Creep resistant magnesium alloys for die casting Creep resistant magnesium alloys for die casting

C - Chemistry, Metallurgy

22

C

C22C 23/02 (2006.01)

Patent

CA 2213550

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.

La présente invention concerne un alliage à base de magnésium, qui comporte d'environ 2 à environ 6 % en poids d'aluminium et d'environ 0,1 à environ 0,8 % de calcium, le reste étant du magnésium. Cet alliage comprend le composé intermétallique AL¿2?Ca aux joints de grains des cristaux de magnésium. L'alliage selon l'invention peut avoir un allongement dû au fluage inférieur à environ 0,5 % à environ 150 ·C.

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