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US 12,612,687 B2Granted
Amorphous alloy, manufacturing method thereof, and product including the same
AssigneeSeoul National University R&Db Foundation
InventorsEun Soo Park, Geunhee Yoo, Wookha Ryu, Myeong Jun Lee, Ming Kyung Kwak
Life of this patent
Estimating the term…
Abstract
Disclosed are an amorphous alloy, a manufacturing method thereof, and a product including the same. The novel amorphous alloy according to an embodiment includes a quaternary amorphous alloy matrix including Zr, Ni, Cu, and Al; and a complex concentrated alloy (CCA) dispersed inside the quaternary amorphous alloy matrix and including at least two elements selected from Ti, Zr, Hf, V, Nb, Ta, and Mo.
Claims18
An amorphous alloy, comprising
- a quaternary amorphous alloy matrix including Zr, Ni, Cu, and Al;
- and
- a complex concentrated alloy (CCA) dispersed inside the quaternary amorphous alloy matrix,
- wherein, based on a total amount of 100 atomic % of the quaternary amorphous alloy matrix, the Ni is included in about 2 to about 29 atomic %, the Cu is included in about 2 to about 29 atomic %, the Al is included in about 6 to about 18 atomic %, and the Zr is included as a balance,
- the complex concentrated alloy has a single-phase body-centered cubic (BCC) structure,
- the entire composition of the amorphous alloy is represented by Chemical Formula 1:
- ZraNibCuc-dAlf(X)d [Chemical Formula 1]
- wherein, in Chemical Formula 1, X includes two or more elements selected from Ti, Zr, Hf, V, Nb, Ta, and Mo,
- b is 2 to 29,
- (c-d) is 2 to 29,
- d is 1 to 10,
- f is 6 to 18, and
- a is 100−(b+c+f), and
- X in Chemical Formula 1 satisfies Equation 1:
- 10.0≤{(1/3)*(x+n+o+p)+(1/6.9)*y+(1/7)*(z+m)} [Equation 1]
- wherein x, y, z, m, n, o, and p are atomic fractions of Ti, Zr, Hf, V, Nb, Ta, and Mo in Chemical Formula 1, respectively.
13 more elements
A method of manufacturing an amorphous alloy, comprising:
- a first process of preparing a complex concentrated alloy (CCA) having a single-phase body-centered cubic (BCC) structure and including two or more elements selected from Ti, Zr, Hf, V, Nb, Ta, and Mo;
- a second process of preparing a mixture by mixing Zr, Ni, Cu, and Al with the complex concentrated alloy so that the entire composition is represented by Chemical Formula 1:
- ZraNibCuc-dAlf(X)d
- and satisfies Equation 1:
- 10.0≤{(1/3)*(x+n+o+p)+(1/6.9)*y+(1/7)*(z+m)}
- wherein X includes the two or more elements,
- b is 2 to 29,
- (c-d) is 2 to 29,
- d is 1 to 10,
- f is 6 to 18,
- a is 100−(b+c+f),
- and x, y, z, m, n, o, p are atomic fractions of Ti, Zr, Hf, V, Nb, Ta, Mo, respectively;
- a third process of melting the mixture to produce molten metal;
- and
- a fourth process of cooling the molten metal obtain an amorphous alloy,
- wherein among a total amount, 100 atomic % of the Zr, Ni, Cu, and Al, based on a total amount of 100 atomic % of the quaternary amorphous alloy matrix, the Ni is included in about 2 to about 29 atomic %, the Cu is included in about 2 to about 29 atomic %, the Al is included in about 6 to about 18 atomic %, and the Zr is included as a balance.
13 more elements
Dependencies are inferred from the claim text.