US2024271253A1PendingUtilityA1

Magnesium-lithium alloys composed of gallium or indium

58
Assignee: UNIV FLORIDAPriority: Jun 7, 2021Filed: Jun 6, 2022Published: Aug 15, 2024
Est. expiryJun 7, 2041(~14.9 yrs left)· nominal 20-yr term from priority
Inventors:Michele Viola ManuelDavid Christianson
C22F 1/06C22C 1/02C22C 23/00
58
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Claims

Abstract

Described herein are Mg—Li alloys composed of gallium or indium. The amount of gallium or indium incorporated into the alloys enhances the physical properties of the alloys. For example, the addition of gallium or indium strengthens the alloys and makes them harder and tougher. In one aspect, the Mg—Li alloys described herein include gallium in the amount of from about 0.1 atomic percent to about 2 atomic percent or from about 0.5 weight percent to about 10 weight percent. In another aspect, the Mg—Li alloys described herein include indium in the amount of from about 0.1 atomic percent to about 2 atomic percent or from about 2 weight percent to about 15 weight percent. The alloys described herein have numerous applications where it is desirable to produce articles that are light-weight yet very strong and hard.

Claims

exact text as granted — not AI-modified
1 . An alloy comprising
 (a) gallium in the amount of from about 0.1 atomic percent to about 2 atomic percent or from about 0.5 weight percent to about 10 weight percent;   (b) lithium in the amount of from about 23 atomic percent to about 35 atomic percent or from about 8 weight percent to about 15 weight percent; and   (c) the balance of the alloy is magnesium.   
     
     
         2 . The alloy of  claim 1 , wherein gallium is in the amount of from about 0.1 atomic percent to about 2 atomic percent. 
     
     
         3 . The alloy of  claim 1 , wherein gallium is in the amount of from about 1 weight percent to about 5 weight percent. 
     
     
         4 . The alloy of  claim 1 , wherein lithium is in the amount of from about 23 atomic percent to about 31 atomic percent. 
     
     
         5 . The alloy of  claim 1 , wherein lithium is in the amount of from about 8 weight percent to about 12 weight percent. 
     
     
         6 . The alloy of  claim 1 , wherein gallium is in the amount of from about 0.1 atomic percent to about 1.5 atomic percent and lithium is in the amount of from about 23 atomic percent to about 31 atomic percent. 
     
     
         7 . The alloy of  claim 1 , wherein gallium is in the amount of from about 1 weight percent to about 5 weight percent and lithium is in the amount of from about 8 weight percent to about 12 weight percent. 
     
     
         8 . An alloy comprising
 (a) indium in the amount of from about 0.1 atomic percent to about 2 atomic percent or from about 2 weight percent to about 15 weight percent;   (b) lithium in the amount of from about 23 atomic percent to about 35 atomic percent or from about 10 weight percent to about 15 weight percent; and   (c) the balance of the alloy is magnesium.   
     
     
         9 . The alloy of  claim 8 , wherein indium is in the amount of from about 0.5 atomic percent to about 2 atomic percent. 
     
     
         10 . The alloy of  claim 8 , wherein indium is in the amount of from about 2 weight percent to about 10 weight percent. 
     
     
         11 . The alloy of  claim 8 , wherein lithium is in the amount of from about 23 atomic percent to about 31 atomic percent. 
     
     
         12 . The alloy of  claim 8 , wherein lithium is in the amount of from about 8 weight percent to about 12 weight percent. 
     
     
         13 . The alloy of  claim 8 , wherein indium is in the amount of from about 0.5 atomic percent to about 2 atomic percent and lithium is in the amount of from about 23 atomic percent to about 31 atomic percent. 
     
     
         14 . The alloy of  claim 8 , wherein indium is in the amount of from about 2 weight percent to about 10 weight percent and lithium is in the amount of from about 8 weight percent to about 12 weight percent. 
     
     
         15 - 21 . (canceled) 
     
     
         22 . The alloy of  claim 1 , wherein the alloy has an X-ray powder diffraction pattern comprising MgLi 2 Ga face-centered cubic (FCC) based peaks at 23.3°, 27.0°, 38.5°, 45.5°, and 55.6°+0.2° 2θ as measured by X-ray powder diffraction using an x-ray wavelength of 1.54 Å. 
     
     
         23 . The alloy of  claim 8 , wherein the alloy has an X-ray powder diffraction pattern comprising MgLi 2 In face-centered cubic (FCC) based peaks at about 22.3°, 25.8°, 36.8°, and 43.5°+0.2° 2θ as measured by X-ray powder diffraction using an x-ray wavelength of 1.54 Å. 
     
     
         24 . (canceled) 
     
     
         25 . An alloy produced by the process comprising
 (a) melting magnesium, lithium, and gallium or indium to produce a first composition;   (b) homogenizing the first composition to produce a predominately body-centered cubic (BCC) structure; and   (c) ageing the body-centered cubic (BCC) structure to produce the alloy.   
     
     
         26 . (canceled) 
     
     
         27 . (canceled) 
     
     
         28 . (canceled) 
     
     
         29 . An article comprising the alloy of  claim 1 . 
     
     
         30 . An article comprising the alloy of  claim 8 . 
     
     
         31 . An article comprising the alloy of  claim 25 . 
     
     
         32 . (canceled)

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