Amorphous alloy and method for preparing the same

Patent metadata

Field	Value
Publication number	US-10144992-B2
Application number	US-201314655578-A
Country	US
Kind code	B2
Filing date	Dec 24, 2013
Priority date	Dec 31, 2012
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

An amorphous alloy and a method for preparing the amorphous alloy are provided. The amorphous alloy is represented by a formula of (Zr,Hf)aMbNcBed. M contains at least one element selected from transition group elements. N contains at least one selected from Al and Ti. And 40≤a≤70, 10≤b≤40, 5≤c≤20, 5≤d≤25, and a+b+c+d=100. The ratio of an atomic percentage of Hf to an atomic percentage of Zr is in a range of about 0.01 to about 5.

First claim

What is claimed is:

1. An amorphous alloy represented by formula [I]:
(Zr,Hf) a M b N c Be d   [I]

wherein
M comprises at least one element selected from transition group elements;
N is Al;
40≤a≤70, 10≤b≤40, 5≤c≤20, 5≤d≤25, a+b+c+d=100; and
a ratio of an atomic percentage of Hf to an atomic percentage of Zr is in a range of about 0.01 to about 0.032.

2. The amorphous alloy according to claim 1 , wherein M comprises at least one selected from the group consisting of Cu, Ni, Co, Fe, Mn, Y, Nb, Ag and Ti.

3. The amorphous alloy according to claim 1 , wherein the amorphous alloy comprises an impurity, and the impurity has an atomic percentage of lower than 2%.

4. The amorphous alloy according to claim 1 , wherein 49.3≤a≤70.

5. The amorphous alloy according to claim 4 , wherein 5≤d≤15.

6. The amorphous alloy according to claim 4 , wherein either an atomic percentage of Hf equals or less than about 1.8, or an atomic percentage of Zr equals or more than about 48.45.

7. The amorphous alloy according to claim 4 , which is (Zr 57 Hf 1 Nb 5 Cu 14.4 Ni 12.6 Al 10 ) 94 Be 6 .

8. The amorphous alloy according to claim 4 , which is (Zr 57 Hf 1 Nb 5 Cu 14.4 Ni 12.6 Al 10 ) 85 Be 15 .

9. The amorphous alloy according to claim 4 , which is (Zr 63 Hf 2 Cu 12 Ti 2 Co 1 Al 10 Ni 10 ) 90 Be 10 .

10. An amorphous alloy having the formula (Zr 65 Hf 0.6 Cu 14.4 Al 10 Ni 10 ) 90 Be 10 .

Assignees

• Byd Co Ltd

Inventors

• Zhang Faliang
• Gong Qing

Classifications

• B22D1/00

  Treatment of fused masses in the ladle or the supply runners before casting {(for continuous casting B22D11/10; metallurgical processing, e.g. refining of iron or other metal C21, C22, C25C)} · CPC title

• C22C1/03

  using master alloys · CPC title

• C22C45/10

  with molybdenum, tungsten, niobium, tantalum, titanium, or zirconium {or Hf} as the major constituent · CPC title

• C22C1/11

  Making amorphous alloys · CPC title

• C22C1/02 Primary

  by melting {(C22C1/1036 takes precedence)} · CPC title