US2004154701A1PendingUtilityA1

Fe-based metallic glass for structural and functional use

34
Priority: Feb 12, 2003Filed: Feb 12, 2003Published: Aug 12, 2004
Est. expiryFeb 12, 2023(expired)· nominal 20-yr term from priority
Inventors:Zhao LuChain T. LiuSeetharama C. Deevi
H01F 1/15316H01F 1/15308C22C 33/003C22C 45/02
34
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Claims

Abstract

A bulk amorphous alloy includes the approximate composition Fe (100-a-b-c-d-e-f) Y a M b T c Al d Sn e B f wherein: M comprises at least one of the group consisting of: Zr, Hf, Pb, Ti, Nb, Mo and W; T comprises at least one of the group consisting of Co, Ni and Cr; a is an atomic percentage, and a<5; b is an atomic percentage, and 2≦b≦25; c is an atomic percentage, and 1≦c≦16; d is an atomic percentage, and d<5; e is an atomic percentage, and e<5; and f is an atomic percentage, and 11≦f≦22.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A bulk amorphous alloy composition comprising the approximate composition Fe (100-a-b-c-d-e-f) Y a M b T c Al d Sn e B f  wherein: 
 a. M comprises at least one of the group consisting of: Zr, Hf, Pb, Ti, Nb, Mo and W;    b. T comprises at least one of the group consisting of Co, Ni and Cr;    c. a is an atomic percentage, and a<5;    d. b is an atomic percentage, and 2≦b≦25;    e. c is an atomic percentage, and 1≦c≦16;    f. d is an atomic percentage, and d<5;    g. e is an atomic percentage, and e<5; and    h. f is an atomic percentage, and 11≦f≦22.    
     
     
         2 . A bulk amorphous alloy composition in accordance with  claim 1  wherein M further comprises Zr g Mo h  wherein: 
 a. g+h=b  
 b. g<9  
 c. h<10  
 d. 4≦b≦17  
 
     
     
         3 . A bulk amorphous alloy composition in accordance with  claim 1  wherein T further comprises Co i Cr j  wherein: 
 a. i+j=c  
 b. i<8  
 b. j<6  
 c. 4≦c≦10  
 
     
     
         4 . A bulk amorphous alloy composition in accordance with  claim 1  further comprising the approximate composition Fe (100-a-g-h-i-j-d-e-f) Y a Zr g Mo h Co i Cr j Al d Sn e B f  wherein: 
 a. 1≦a≦3  
 b. 2≦g≦8  
 c. 4≦h≦9  
 d. 4≦i≦8  
 e. j<3  
 f. (d+e)<2  
 g. 14≦f≦18  
 
     
     
         5 . A bulk amorphous alloy composition in accordance with  claim 1  further comprising the approximate composition Fe 61 Y 1.9 Zr 8.1 Mo 7 Co 7 B 15 .  
     
     
         6 . A bulk amorphous alloy composition in accordance with  claim 1  further comprising the approximate composition Fe 61 Y 1.9 Zr 8.1 Mo 7 Co 6 B 15 Al 1 .  
     
     
         7 . A bulk amorphous alloy composition in accordance with  claim 1  further comprising the approximate composition Fe 61 Y 1.9 Zr 8.1 Mo 7 Co 5 Cr 2 B 15 .  
     
     
         8 . A bulk amorphous alloy composition in accordance with  claim 1  further comprising the approximate composition Fe 59.85 Sn 1.15 Y 1.9 Zr 8.1 Mo 7 Co 5 Cr 2 B 15 .  
     
     
         9 . A bulk amorphous alloy composition in accordance with  claim 1  further comprising the approximate composition Fe 60 Sn 1 Y 1.9 Zr 8.1 Mo 7 Co 5 Cr 2 B 15 .  
     
     
         10 . A bulk amorphous alloy composition in accordance with  claim 1  further comprising the approximate composition Fe 58.85 Sn 1.15 Y 1.9 Zr 8.1 Mo 7 Co 5 Cr 3 B 15 .  
     
     
         11 . A bulk amorphous alloy composition in accordance with any one of claims  1 - 10 , inclusive, wherein said bulk amorphous alloy composition is formed into an article.

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