US2026092343A1PendingUtilityA1
High entropy alloy-based compositions and bond coats formed therefrom
Est. expiryApr 11, 2042(~15.7 yrs left)· nominal 20-yr term from priority
C23C 30/005C22C 27/06C22C 27/04C22C 19/07C22C 19/03C22C 16/00C22C 9/00C23C 4/134C23C 4/129C23C 4/11C23C 28/3455C23C 28/325C23C 28/3215C22C 30/02C22C 21/16C22C 30/00
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Claims
Abstract
A high entropy alloy-based composition is provided that has the formula: (M 1 a M 2 b M 3 c M 4 d M 5 e M 6 f )CrAlY 1-x-z Zr x Mo z where: each of M 1 , M 2 , M 3 , M 4 , M 5 , and M 6 is a different alloying element selected from the group consisting of Ni, Co, Fe, Si, Mn, and Cu such that none of M 1 , M 2 , M 3 , M 4 , M 5 , and M 6 are the same alloying element; 0.05≤a≤0.35; 0.05≤b≤0.35; 0.05≤c≤0.35; 0.05≤d≤0.35; 0.05≤e≤0.35; 0≤f≤0.35; a+b+c+d+e+f=1; 0≤x≤1; 0≤z≤1; and 0≤x+z≤1.
Claims
exact text as granted — not AI-modifiedWe claim:
1 . A high entropy alloy-based composition having the formula:
where:
each of M 1 , M 2 , M 3 , M 4 , M 5 , and M 6 is a different alloying element selected from the group consisting of Ni, Co, Fe, Si, Mn, and Cu such that none of M 1 , M 2 , M 3 , M 4 , M 5 , and M 6 are the same alloying element;
0.05
≤
a
≤
0.35
;
0.05
≤
b
≤
0.35
;
0.05
≤
c
≤
0.35
;
0.05
≤
d
≤
0.35
;
0.05
≤
e
≤
0.35
;
0
≤
f
≤
0.35
;
a
+
b
+
c
+
d
+
e
+
f
=
1
;
0
≤
x
≤
1
;
0
≤
z
≤
1
;
and
0
≤
x
+
z
≤
1.
2 . The composition of claim 1 , where:
0.1
≤
a
≤
0
.25
;
0.1
≤
b
≤
0.25
;
0.1
≤
c
≤
0
.25
;
0.1
≤
d
≤
0.25
;
and
0.1
≤
e
≤
0.25
.
3 . The composition of claim 1 , wherein f is 0.
4 . The composition of claim 1 , wherein a is substantially equal to b; b is substantially equal to c; c is substantially equal to d; and d is substantially equal to e.
5 . The composition of claim 1 , wherein a is substantially equal to b; b is substantially equal to c; c is substantially equal to d; d is substantially equal to e; and e is substantially equal to f.
6 . The composition of claim 1 , wherein x is 0.
7 . The composition of claim 1 , wherein z is 0.
8 . The composition of claim 1 , wherein 0≤x≤0.5 and 0≤z≤0.5.
9 . The composition of claim 1 , wherein 0<x≤0.25.
10 . The composition of claim 1 , wherein 0<z≤0.25.
11 . The composition of claim 1 , wherein 0≤x+z<0.5 such that Y has a greater atomic concentration than Zr and Mo.
12 . The composition of claim 1 , wherein the alloy has the formula:
where:
0
≤
x
≤
1
;
0
≤
z
≤
1
;
and
0
≤
x
+
z
≤
1.
13 . The composition of claim 1 , wherein the alloy has the formula:
where:
0
≤
x
≤
1
;
0
≤
z
≤
1
;
and
0
≤
x
+
z
≤
1.
14 . A coated component, comprising:
a substrate having a surface, wherein the substrate comprises a metal; a bond coat on the surface of the substrate, wherein the bond coat includes a layer comprising the composition of claim 1 ; and a thermal barrier coating on the bond coat.
15 . A coated component, comprising:
a substrate having a surface, wherein the substrate comprises a metal; a bond coat on the surface of the substrate, wherein the bond coat comprises a plurality of layers; and a thermal barrier coating on the bond coat, wherein each of the plurality of layers of the bond coat comprises 80% by weight or greater of a high entropy alloy-based composition having the formula:
where:
each of M 1 , M 2 , M 3 , M 4 , M 5 , and M 6 is a different alloying element selected from the group consisting of Ni, Co, Fe, Si, Mn, and Cu such that none of M 1 , M 2 , M 3 , M 4 , M 5 , and M 6 are the same alloying element;
0.05
≤
a
≤
0.35
;
0.05
≤
b
≤
0.35
;
0.05
≤
c
≤
0.35
;
0.05
≤
d
≤
0.35
;
0.05
≤
e
≤
0.35
;
0
≤
f
≤
0.35
;
a
+
b
+
c
+
d
+
e
+
f
=
1
;
0
≤
x
≤
1
;
0
≤
z
≤
1
;
and
0
≤
x
+
z
≤
1.
16 . The coated component of claim 15 , wherein the bond coat includes an innermost layer adjacent to the surface of the substrate and comprising a first high entropy alloy-based composition, and wherein the bond coat includes an outermost layer adjacent to the thermal barrier coating and comprising a second high entropy alloy-based composition, wherein the first high entropy alloy-based composition and the second high entropy alloy-based composition are different in composition in at least one of their respective M 1 a M 2 b M 3 c M 4 d M 5 e M 6 f .
17 . The coated component of claim 15 , wherein the bond coat has a compositional gradient from an innermost layer adjacent to the surface of the substrate to an outermost layer adjacent to the thermal barrier coating.
18 . The coated component of claim 17 , wherein the compositional gradient is in at least one of M 1 a M 2 b M 3 c M 4 d M 5 e M 6 f .
19 . The coated component of claim 15 , wherein the alloy is a single-phase alloy.
20 . The coated component of claim 15 , wherein the bond coat has a thickness of 10 μm to 100 μm.Join the waitlist — get patent alerts
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