ZIRCONIUM BASED BULK METALLIC GLASSES
First Claim
1. An alloy composition comprising zirconium (Zr), copper (Cu), aluminum (Al), at least one element from a group consisting of niobium (Nb) and titanium (Ti), and at least one element from a group consisting of nickel (Ni), iron (Fe), and cobalt (Co), wherein a concentration of the zirconium is from about 40 to about 56 atomic percent, and wherein a concentration of the copper is from about 30 to about 50 atomic percent.
2 Assignments
0 Petitions
Accused Products
Abstract
Various embodiments of zirconium based bulk metallic glass are described herein. In one embodiment, an alloy composition includes zirconium (Zr), copper (Cu), aluminum (Al), at least one element from a group consisting of niobium (Nb) and titanium (Ti), and at least one element from a group consisting of nickel (Ni), iron (Fe), and cobalt (Co).
19 Citations
25 Claims
- 1. An alloy composition comprising zirconium (Zr), copper (Cu), aluminum (Al), at least one element from a group consisting of niobium (Nb) and titanium (Ti), and at least one element from a group consisting of nickel (Ni), iron (Fe), and cobalt (Co), wherein a concentration of the zirconium is from about 40 to about 56 atomic percent, and wherein a concentration of the copper is from about 30 to about 50 atomic percent.
- 9. An article formed from an alloy composition comprising zirconium (Zr), copper (Cu), aluminum, at least one element from a group consisting of niobium (Nb) or titanium (Ti), and at least one element from a group consisting of nickel (Ni), iron (Fe), or cobalt (Co), wherein a concentration of the zirconium is from about 40 to about 56 atomic percent, and wherein a concentration of the copper is from about 30 to about 50 atomic percent.
- 16. An article of zirconium based bulk metallic glass having zirconium (Zr), copper (Cu), aluminum (Al), at least one element from a group consisting of niobium (Nb), titanium (Ti), tantalum (Ta), vanadium (V), molybdenum (Mo), chromium (Cr), hafnium (Hf), and yttrium (Y), and at least one element from a group consisting of nickel (Ni), iron (Fe), or cobalt (Co), wherein the article has a substantially fully amorphous phase in an outer portion of a cross-section of the article and a mixture of (i) a crystalline intermetallic body centered cubic phase and (ii) a glassy phase in an inner portion of the cross-section of the article.
- 21. A cast article of Zr-based bulk metallic glass comprising a substantially fully amorphous phase in an outer portion of a cross-section of the cast article and a mixture of (i) a crystalline intermetallic body centered cubic phase having an approximate formula of (Zr, ETM)50(Cu, LTM, Al)50 and (ii) a glassy phase in an inner portion of the cross-section of the cast article, where ETM is the group consisting of niobium (Nb), titanium (Ti), tantalum (Ta), vanadium (V), molybdenum (Mo), chromium (Cr), hafnium (Hf), and yttrium (Y), and LTM is the group consisting of nickel (Ni), iron (Fe), or cobalt (Co).
Specification