Magnesium alloy and method for producing same

Abstract

The invention relates to a magnesium alloy. To obtain a magnesium alloy which exhibits both a high strength and also a high deformability, a magnesium alloy is provided according to the invention, comprising (in at %) 15.0% to 70.0% lithium, greater than 0.0% aluminum, and magnesium and production-related impurities as a remainder, wherein a ratio of aluminum to magnesium (in at %) is 1:6 to 4:6. The invention also relates to a method for producing the magnesium alloy.

1 . A magnesium alloy, comprising (in at %),
 15.0% to 70.0% lithium,   greater than 0.0% aluminum,   optionally also greater than 0.0 to 3.0 wt % calcium,   optionally also greater than 0.0 to 3.0 wt % rare earth metals, in particular yttrium,   optionally also 3.0 wt % to 10.0 wt % zinc,   optionally also 2.0 wt % to 10.0 wt % silicon,   magnesium and production-related impurities as a remainder,   wherein a ratio of aluminum to magnesium (in at %) is 1.2:6 to 4:6.   
     
     
         2 . The magnesium alloy according to  claim 1 , wherein the magnesium alloy comprises (in at %) 30.0% to 60.0%, in particular 40% to 50% lithium. 
     
     
         3 . The magnesium alloy according to  claim 1 , wherein the ratio of aluminum to magnesium (in at %) is 2:6 to 3.5:6. 
     
     
         4 .- 5 . (canceled) 
     
     
         6 . The magnesium alloy according to  claim 1 , wherein the magnesium alloy contains calcium and rare earth metals, in particular yttrium, wherein a total amount of calcium and rare earth metals, in particular yttrium, is greater than 0.0 to 3.0 wt %. 
     
     
         7 .- 8 . (canceled) 
     
     
         9 . A method for producing a magnesium alloy according to  claim 1 , wherein a heat treatment of the magnesium alloy is carried out in order to optimize a strength and/or deformability of the magnesium alloy. 
     
     
         10 . The method according to  claim 9 , wherein the heat treatment is carried out at a temperature greater than 200° C., in particular between 200° C. and 400° C., for more than 20 minutes, in particular more than 1 hour. 
     
     
         11 . A feedstock, semi-finished product, or element having a magnesium alloy according to  claim 1 . 
     
     
         12 . A feedstock, semi-finished product, or element obtainable using the method according to  claim 9 .