US2011286880A1PendingUtilityA1

HIGH STRENGTH Mg-Al-Sn-Ce AND HIGH STRENGTH/DUCTILITY Mg-Al-Sn-Y CAST ALLOYS

Individually held — no corporate assignee on recordPriority: May 18, 2006Filed: Jul 29, 2011Published: Nov 24, 2011
Est. expiryMay 18, 2026(expired)· nominal 20-yr term from priority
C22C 23/02
41
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Claims

Abstract

One exemplary embodiment includes a cast alloy including Al present in an amount of about 6.5 wt % to about 9.0 wt %; Sn present in an amount of about 1.0 wt % to about 3.0 wt %; Ce present in an amount of about 0 wt % to about 1.0 wt %; and, Mg comprising a balance of the alloy minus an amount of minor and trace elements wherein Mg is present at an amount of greater than about 85 wt %.

Claims

exact text as granted — not AI-modified
1 . A cast alloy comprising:
 Al present in an amount of about 6.5 wt % to about 9.0 wt %;   Sn present in an amount of about 1.0 wt % to about 3.0 wt %;   Ce present in an amount of about 0 wt % to about 1.0 wt %;   Y present in an amount of about 0 wt % to about 1.0 wt %; and,   Mg comprising a balance of the alloy minus an amount of minor and trace elements wherein Mg is present at an amount of greater than about 85 wt %.   
     
     
         2 . The alloy of  claim 1 , wherein at least one of Ce or Y is present in an amount of about 0.01 wt % to about 1.0 wt %. 
     
     
         3 . The alloy of  claim 1 , wherein Ce is present in an amount of about 0.05 wt % to about 0.8 wt %, or wherein Y is present in an amount of about 0.1 wt % to about 0.5 wt %. 
     
     
         4 . The alloy of  claim 1 , wherein Ce is present in an amount of about 0.2 wt % to about 0.5 wt %, or wherein Y is present in an amount of about 0.1 wt % to about 0.3 wt %. 
     
     
         5 . The alloy of  claim 2 , wherein Sn is present at a level of about 1.0 wt % to about 2.5 wt %. 
     
     
         6 . The alloy of  claim 2 , wherein Sn is present at a level of about 2.5 wt % to about 3.0 wt %. 
     
     
         7 . The alloy of  claim 2 , wherein Al is present at a level of about 6.8 wt % to about 8.0 wt %. 
     
     
         8 . The alloy of  claim 2 , wherein Al is present at a level of about 8.0 wt % to about 9.0 wt %. 
     
     
         9 . The alloy of  claim 1 , further comprising Zn present at a maximum level of about 0.3 wt %. 
     
     
         10 . The alloy of  claim 1 , further comprising Mn present at a level of about 0.2 wt % to about 0.6 wt % 
     
     
         11 . A cast alloy comprising:
 Al present in an amount of about 6.5 wt % to about 9.0 wt %;   Sn present in an amount of about 1.0 wt % to about 3.0 wt %;   Ce present in an amount of about 0.01 wt % to about 1.0 wt %;   Y present in an amount of about 0 wt % to about 1.0 wt %; and,   Mg comprising a balance of the alloy minus an amount of minor and trace elements wherein Mg is present at an amount of greater than about 85 wt %.   
     
     
         12 . The alloy of  claim 11 , wherein Ce is present in an amount of about 0.05 wt % to about 0.8 wt % or wherein Y is present in an amount of about 0 wt % to about 1 wt %. 
     
     
         13 . The alloy of  claim 11 , wherein Ce is present in an amount of about 0.1 wt % to about 0.5 wt % or wherein Y is present in an amount of about 0.1 wt % to about 0.5 wt %. 
     
     
         14 . The alloy of  claim 11 , wherein Ce is present in an amount of about 0.2 wt % to about 0.5 wt % or wherein Y is present in an amount of about 0.1 wt % to about 0.3 wt %. 
     
     
         15 . The alloy of  claim 12 , wherein Sn is present at a level of about 1.0 wt % to about 2.5 wt %. 
     
     
         16 . The alloy of  claim 12 , wherein Sn is present at a level of about 2.5 wt % to about 3.0 wt %. 
     
     
         17 . The alloy of  claim 13 , wherein Al is present at a level of about 6.8 wt % to about 8.0 wt %. 
     
     
         18 . The alloy of  claim 13 , wherein Al is present at a level of about 8.0 wt % to about 9.0 wt %. 
     
     
         19 . The alloy of  claim 11 , further comprising Zn present at a maximum level of about 0.3 wt %. 
     
     
         20 . The alloy of  claim 11 , further comprising Mn present at a level of about 0.2 wt % to about 0.6 wt %.

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