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Title: 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{hor_ellipsis}y is less than 10 atomic percent, and x/z ranges from 0.5 to 2.

Inventors:
;
Issue Date:
Research Org.:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
612123
Patent Number(s):
5735975
Application Number:
PAN: 8-604,452
Assignee:
California Inst. of Tech., Pasadena, CA (United States)
DOE Contract Number:  
FG03-86ER45242
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 7 Apr 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; METALLIC GLASSES; SYNTHESIS; CHEMICAL COMPOSITION; ZIRCONIUM ALLOYS; HAFNIUM ALLOYS; ALUMINIUM ALLOYS; ZINC ALLOYS; TITANIUM ALLOYS; NIOBIUM ALLOYS

Citation Formats

Lin, X, and Johnson, W L. Quinary metallic glass alloys. United States: N. p., 1998. Web.
Lin, X, & Johnson, W L. Quinary metallic glass alloys. United States.
Lin, X, and Johnson, W L. Tue . "Quinary metallic glass alloys". United States.
@article{osti_612123,
title = {Quinary metallic glass alloys},
author = {Lin, X and Johnson, W 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{hor_ellipsis}y is less than 10 atomic percent, and x/z ranges from 0.5 to 2.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {4}
}