Quinary metallic glass alloys
Abstract
At least quinary alloys form metallic glass upon cooling below the glass transition temperature at a rate less than 10.sup.3 K/s. Such alloys comprise zirconium and/or hafnium in the range of 45 to 65 atomic percent, titanium and/or niobium in the range of 4 to 7.5 atomic percent, and aluminum and/or zinc in the range of 5 to 15 atomic percent. The balance of the alloy compositions comprise copper, iron, and cobalt and/or nickel. The composition is constrained such that the atomic percentage of iron is less than 10 percent. Further, the ratio of copper to nickel and/or cobalt is in the range of from 1:2 to 2:1. The alloy composition formula is: (Zr,Hf).sub.a (Al,Zn).sub.b (Ti,Nb).sub.c (Cu.sub.x Fe.sub.y (Ni,Co).sub.z).sub.d wherein the constraints upon the formula are: a ranges from 45 to 65 atomic percent, b ranges from 5 to 15 atomic percent, c ranges from 4 to 7.5 atomic percent, d comprises the balance, d.multidot.y is less than 10 atomic percent, and x/z ranges from 0.5 to 2.
- Inventors:
-
- Pasadena, CA
- Publication Date:
- Research Org.:
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- OSTI Identifier:
- 871457
- Patent Number(s):
- US 5735975
- Assignee:
- California Institute of Technology (Pasadena, CA)
- DOE Contract Number:
- FG03-86ER45242
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- quinary; metallic; glass; alloys; form; cooling; below; transition; temperature; rate; 10; comprise; zirconium; hafnium; range; 45; 65; atomic; percent; titanium; niobium; aluminum; zinc; 15; balance; alloy; compositions; copper; iron; cobalt; nickel; composition; constrained; percentage; ratio; formula; zr; hf; zn; nb; cu; z; constraints; ranges; comprises; multidot; compositions comprise; metallic glass; alloy composition; atomic percent; transition temperature; form metal; glass transition; alloys comprise; atomic percentage; alloy compositions; alloys form; form metallic; cooling below; glass alloys; /148/420/
Citation Formats
Lin, Xianghong, and Johnson, William L. Quinary metallic glass alloys. United States: N. p., 1998.
Web.
Lin, Xianghong, & Johnson, William L. Quinary metallic glass alloys. United States.
Lin, Xianghong, and Johnson, William L. 1998.
"Quinary metallic glass alloys". United States. https://www.osti.gov/servlets/purl/871457.
@article{osti_871457,
title = {Quinary metallic glass alloys},
author = {Lin, Xianghong and Johnson, William L},
abstractNote = {At least quinary alloys form metallic glass upon cooling below the glass transition temperature at a rate less than 10.sup.3 K/s. Such alloys comprise zirconium and/or hafnium in the range of 45 to 65 atomic percent, titanium and/or niobium in the range of 4 to 7.5 atomic percent, and aluminum and/or zinc in the range of 5 to 15 atomic percent. The balance of the alloy compositions comprise copper, iron, and cobalt and/or nickel. The composition is constrained such that the atomic percentage of iron is less than 10 percent. Further, the ratio of copper to nickel and/or cobalt is in the range of from 1:2 to 2:1. The alloy composition formula is: (Zr,Hf).sub.a (Al,Zn).sub.b (Ti,Nb).sub.c (Cu.sub.x Fe.sub.y (Ni,Co).sub.z).sub.d wherein the constraints upon the formula are: a ranges from 45 to 65 atomic percent, b ranges from 5 to 15 atomic percent, c ranges from 4 to 7.5 atomic percent, d comprises the balance, d.multidot.y is less than 10 atomic percent, and x/z ranges from 0.5 to 2.},
doi = {},
url = {https://www.osti.gov/biblio/871457},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 07 00:00:00 EDT 1998},
month = {Tue Apr 07 00:00:00 EDT 1998}
}
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