IP Library Granted Patent US 7,517,415
Granted Patent B2
US 7,517,415 · App. 10/559,002 · Granted Apr 14, 2009

Non-ferromagnetic amorphous steel alloys containing large-atom metals

Assignee: University of Virginia Patent Foundation
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Quick Facts
Patent No.
US 7,517,415
App. No.
10/559,002
Granted
Apr 14, 2009
Kind
B2
Abstract

The present invention relates to novel non-ferromagnetic amorphous steel alloys represented by the general formula: Fe—Mn-(Q)-B-M, wherein Q represents one or more elements selected from the group consisting of Sc, Y, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and M represents one or more elements selected from the group consisting of Cr, Co, Mo, C and Si. Typically the atomic percentage of the Q constituent is 10 or less. FIG. 2 B represents a differential thermal analysis plot for several exemplary alloys according to the invention.

Claims (35)

1. An iron-based amorphous alloy represented by the formula:

Fe (100-t) Mn n Cr m Mo p B q C s Q g P z

wherein Q is an element selected from the group consisting of Sc, Y, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu;

n is a number selected from 0 to about 29;

m is a number selected from 0 to about 16, wherein

n+m is at least 10;

p is a number selected from about 0 to about 16;

q is at least about 4;

s is at least about 13;

g is a number greater than 0 but less than or equal to about 3;

z is a number selected from about 5 to about 12; and t is the sum of n, m, p, q, s, g and z, with the proviso that the sum of p and g is less than 16, and t is not greater than 55.

2. The alloy of claim 1 wherein Q is an element selected from the group consisting of Sc, Y, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu.

3. The alloy of claim 2 wherein

n is a number selected from 0 to about 12;

m is a number selected from 0 to about 16, wherein

n+m is at least 15;

p is a number selected from 8 to about 16;

q is a number selected from about 4 to about 8;

s is about 13 to about 17;

g is a number greater than 0 but less than or equal to about 3; and

z is a number selected from about 5 to about 12; and t is a number selected from about 40 to about 55.

4. The alloy of claim 1 , wherein said alloy is processable into bulk amorphous samples of less than about 0.1 mm in thickness in its minimum dimension.

5. The alloy of claim 1 , wherein said alloy is processable into bulk amorphous samples of at least about 0.1 mm in thickness in its minimum dimension.

6. The alloy of claim 1 , wherein said alloy is processable into bulk amorphous samples of at least about 0.5 mm in thickness in its minimum dimension.

7. The alloy of claim 1 , wherein said alloy is processable into bulk amorphous samples of at least about 1 mm in thickness in its minimum dimension.

8. The alloy of claim 1 , wherein said alloy is processable into bulk amorphous samples of at least about 5 mm in thickness in its minimum dimension.

9. The alloy of claim 1 , wherein said alloy is processable into bulk amorphous samples of at least about 10 mm in thickness in its minimum dimension.

10. The alloy of claim 1 , wherein said alloy is processable into bulk amorphous samples of at least about 12 mm in thickness in its minimum dimension.

11. The alloy of claim 1 , wherein said alloy is processable into an article.

12. The alloy of claim 11 , wherein said processed article is provided by at least one of the following processing methods: melt spinning, atomization, spray forming, scanning-beam forming, plastic forming, casting, and compaction.

13. The alloy of claim 1 , wherein said alloy is processable into a coating.

14. The alloy of claim 13 , wherein said processed coating is provided by at least one of the following processing methods: melt spinning, atomization, spray forming, scanning-beam forming, plastic forming, casting, and compaction.

15. The alloy of claim 13 , wherein said coating comprises corrosion resistant type coating and/or wear-resistant type coating.

16. The alloy of claim 13 , wherein said coating is disposed on a structure selected from the group consisting of ship frames, submarine frames, vehicle frames, airplane frames, armor penetrators, projectiles, protection armors, rods, train rails, cable armor, power shafts, actuators, cell phone and PDA casings and housings, and electronics and computer casings and housings.

17. The alloy of claim 1 , wherein said alloy is processable into a structure selected from the group consisting of ship frames, submarine frames, vehicle frames, airplane frames, ship parts, submarine parts, vehicle parts, airplane parts, armor penetrators, projectiles, protection armors, rods, train rails, cable armor, power shaft, actuators, engineering and medical materials and tools, cell phone and PDA casings and housings, and electronics and computer casings, housings and components.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2008
From: POON, S. JOSEPH; PONNAMBALAM, VIJAYABARATHI; SHIFLET, GARY J.
To: UNIVERSITY OF VIRGINIA
Reel/Frame 021577/0061 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2008
From: UNIVERSITY OF VIRGINIA
To: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
Reel/Frame 021577/0181 →
EXECUTIVE ORDER 9424, CONFIRMATORY LICENSE Recorded Mar 24, 2006
From: VIRGINIA, UNIVERSITY OF
To: NAVY, SECRETARY OF THE, UNITED STATED OF AMERICA
Reel/Frame 017702/0608 →
Continuity (4)
Provisional Application 6054676100 · Feb 23, 2004
Provisional Application 6051361200 · Oct 23, 2003
Provisional Application 6047518500 · Jun 2, 2003
Related Publication 20060130944A1 · Jun 22, 2006