Nickel-based amorphous alloy compositions

• US 6,325,868 B1
• Filed: 07/07/2000
• Issued: 12/04/2001
• Est. Priority Date: 04/19/2000
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Yonsei University
• Inventors: Park, Tae Gyu, Park, Ju Gun, Lim, Hyun Kyu, Jang, Jong Shim, Kim, Do Hyang, Kim, Won Tae, Yi, Sheng Hoon, Lee, Jin Kyu, Lee, Min Ha
• Primary Examiner(s): WYSZOMIERSKI, GEORGE P
• Application Number:
  US09/610,527
• Time in Patent Office: 515 Days
• Field of Search: 148/304, 148/403, 148/409, 148/426, 420/441, 420/455
• US Class Current: 148/403
• CPC Class Codes: C22C 45/04 with nickel or cobalt as the major constituent

Abstract

Disclosed are nickel-based amorphous alloy compositions, and particularly quaternary nickel-based amorphous alloy compositions containing nickel, zirconium and titanium as main constituent elements and additive Si or P, the quaternary nickel-zirconium-titanium-silicon alloy compositions comprising nickel in the range of 45 to 63 atomic %, zirconium plus titanium in the range of 32 to 48 atomic % and silicon in the range of 1 to 11 atomic %, and being represented by the general formula: Ni_a(Zr_1−xTi_x)_bSi_c. Also, at least one kind of element selected from the group consisting of V, Cr, Mn, Cu, Co, W, Sn, Mo, Y, C, B, P, Al can be added to the alloy compositions in the range of content of 2 to 15 atomic %. The quaternary nickel-zirconium-titanium-phosphorus alloy compositions comprising nickel in the range of 50 to 62 atomic %, zirconium plus titanium in the range of 33 to 46 atomic % and phosphorus in the range of 3 to 8 atomic %, and being represented by the general formula: Ni_d(Zr_1−yTi_y)_eP_f. The nickel-based amorphous alloy compositions have a superior amorphous phase-forming ability to produce the bulk amorphous alloy having a thickness of 1 mm by general casting methods.

Claims

1. A nickel-based amorphous alloy composition being represented by the following general formula:

2. A nickel-based amorphous alloy composition as recited in claim 1, wherein a, b and c are in the ranges of 44 atomic %≦

a≦

55 atomic %, 39 atomic %≦

b≦

47 atomic % and 5 atomic %≦

c≦

11 atomic %, respectively.

3. A nickel-based amorphous alloy composition as recited in claim 1, wherein a, b and c are in the ranges of 56 atomic %≦

a≦

61 atomic %, 35 atomic %≦

b≦

40 atomic % and 2 atomic %≦

c≦

7 atomic %, respectively.

4. A nickel-based amorphous alloy composition as recited in claim 1, further comprising at least one additive element selected from the group consisting of V, Cr, Mn, Cu, Co, W, Sn, Mo, Y, C, B, P, Al in the range of content of 2 to 15 atomic %.

5. A nickel-based amorphous alloy composition as recited in claim 4, wherein the additive element is Sn in the range of content of 2 to 5 atomic %.

6. A nickel-based amorphous alloy composition as recited in claim 4, wherein the additive element is Mo or Y in the range of content of 3 to 5 atomic %.

7. A nickel-based amorphous alloy composition being represented by the following general formula:

8. A nickel-based amorphous alloy composition as recited in claim 7, wherein d, e and f are in the ranges of 54 atomic %≦

d≦

58 atomic %, 37 atomic %≦

e≦

40 atomic % and 4 atomic %≦

f≦

7 atomic %.

9. A nickel-based amorphous alloy composition as recited in claim 7, wherein d is 57 atomic %, e is 39 atomic %, f is 4 atomic %, and y is 0.4872.

10. A nickel-based amorphous alloy composition as recited in claim 7, wherein d is 55 atomic %, e is 40 atomic %, f is 5 atomic %, and y is 0.5.

11. A nickel-based amorphous alloy composition as recited in claim 7, wherein d is 57 atomic %, e is 38 atomic %, f is 5 atomic %, and y is 0.4737.

12. A nickel-based amorphous alloy composition as recited in claim 7, wherein d is 55 atomic %, e is 39 atomic %, f is 6 atomic %, and y is 0.4872.

13. A nickel-based amorphous alloy composition as recited in claim 7, wherein d is 55 atomic %, e is 38 atomic %, f is 7 atomic %, and y is 0.4737.