High thermal stability bulk metallic glass in the zr-nb-cu-ni-al system
AssigneeCrucible Intellectual Property, LLC
InventorsQUOC TRAN PHAM, Theodore A. Waniuk
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Abstract
Disclosed is an improved bulk metallic glass alloy and methods of making the alloy in which the alloy has the structure ZraNbbCucNidAle, wherein a-e represent the atomic percentage of each respective element, and wherein b/a is less than about 0.040, and c/d is less than 1.15. The bulk metallic glass alloy has improved thermal stability and an increased super cooled liquid region rendering it capable of being thermoplastically formed into a variety of shapes and sizes.
Claims20
A bulk metallic glass alloy composition comprising ZraNbbCucNidAle, wherein a-e represent the atomic percentage of each respective element, and wherein b/a is less than about 0.040, and c/d is less than 1.15.
A bulk metallic glass alloy having the following composition Zr61.45Nb1.75Cu13.5Ni12.6Al10.0.
A method of forming a bulk metallic glass alloy comprising:
- forming a bulk metallic glass of the following composition ZraNbbCucNidAle, wherein a-e represent the atomic percentage of each respective element;
- adjusting the ratio of b/a to be less than about 0.040;
- and
- adjusting the ratio of c/d to be less than 1.15.
Dependencies are inferred from the claim text.