Magnesium alloy and method of making the same

Abstract

A magnesium alloy includes about 7.2 to about 7.8 wt % aluminum, about 0.45 wt % to about 0.90 wt % zinc, about 0.17 wt % to about 0.40 wt % manganese, about 0.30 wt % to about 1.5 wt % rare earth elements, about 0.00050 wt % to about 0.0015 wt % beryllium, and the rest being magnesium and unavoidable impurities. A method of making the magnesium alloy is further provided.

1 . A magnesium alloy containing: about 7.2 wt % to about 7.8 wt % aluminum, about 0.45 wt % to about 0.90 wt % zinc, about 0.17 wt % to about 0.40 wt % manganese, about 0.30 wt % to about 1.5 wt % rare earth elements, about 0.00050 wt % to about 0.0015 wt % beryllium, and the rest being magnesium and unavoidable impurities. 
     
     
         2 . The magnesium alloy of  claim 1 , wherein the aluminum is about 7.5 wt % aluminum. 
     
     
         3 . The magnesium alloy of  claim 1 , wherein the rare earth element is about 1.0 wt % rare earth element. 
     
     
         4 . The magnesium alloy of  claim 1 , wherein the rare earth element is selected from the group consisting of cerium, lanthanum, praseodymium, neodymium, yttrium, and combinations thereof. 
     
     
         5 . The magnesium alloy of  claim 4 , wherein the rare earth element is the combination of cerium and lanthanum. 
     
     
         6 . The magnesium alloy of  claim 5 , wherein the weight ratio of cerium to rare earth element is about 65%, and the weight ratio of lanthanum to rare earth element is about 35%. 
     
     
         7 - 20 . (canceled)