An alloy
Abstract
An alloy consisting of, in atomic percent: aluminium: 20 to 35%; zirconium: 16.7% or less; vanadium: 7% or less; tungsten: 35% or less; chromium: 35% or less; iron: 10% or less; nickel: 5% or less; titanium: 40% or less; tantalum: 35% or less; niobium: 20% or less; molybdenum: 35% or less; cobalt: 5% or less; manganese: 10% or less; copper: 5% or less; hafnium: 10% or less; silicon: 5% or less; platinum: 5% or less; palladium: 5% or less; ruthenium: 10% or less; rhodium: 5% or less; iridium: 5% or less; rhenium: 35% or less provided A Re ≤(35−A Ta )+(35−A W )+(20−A Nb ) and where A Re , A Ta , A W and A Nb are the amounts in atomic percent of rhenium, tantalum, tungsten and niobium respectively; and incidental impurities less than 1 at % in sum; wherein the following equations are satisfied where x i is the atomic fraction of element i in the alloy, VEC i is the number of valence electrons associated with an atom of element i and R is the universal gas constant.
Claims
exact text as granted — not AI-modified1 . An alloy consisting of, in atomic percent:
aluminium: 20 to 35%; zirconium: 16.7% or less;
vanadium: 7% or less;
tungsten: 35% or less;
chromium: 35% or less;
iron: 10% or less;
nickel: 5% or less;
titanium: 40% or less;
tantalum: 35% or less;
niobium: 20% or less;
molybdenum: 35% or less;
cobalt: 5% or less;
manganese: 10% or less;
copper: 5% or less;
hafnium: 10% or less;
silicon: 5% or less;
platinum: 5% or less;
palladium: 5% or less;
ruthenium: 10% or less;
rhodium: 5% or less;
iridium: 5% or less;
rhenium: 35% or less provided A Re ≤(35−A Ta )+(35−A W )+(20−A Nb ) and where A Re , A Ta , A W and A Nb are the amounts in atomic percent of rhenium, tantalum, tungsten and niobium respectively; and
incidental impurities less than 1 at % in sum;
wherein the following equations are satisfied:
4.6
≥
∑
i
x
i
·
VEC
i
and
13.38
≤
-
R
·
∑
i
x
i
·
ln
(
x
i
)
where x i is the atomic fraction of element i in the alloy and VEC i is the number of valence electrons associated with an atom of element i and R is the universal gas constant.
2 . The alloy of claim 1 , wherein the following equation is fulfilled:
0.7
≥
A
Zr
A
Al
where A Al and A Zr are the amounts in atomic percent of aluminium and zirconium respectively.
3 . The alloy of claim 1 , wherein the following equation is fulfilled:
2.
≥
∑
i
x
i
·
R
PB
i
where x i is the atomic fraction of element i in the alloy and R PB i is the Pilling-Bedworth ratio for pure element i.
4 . The alloy of claim 1 , where in the following equation is fulfilled:
10.
≥
∑
i
x
i
ρ
i
where x i is the atomic fraction of element i in the alloy and ρ i is the density for pure element i.
5 . The alloy of any of claims 1 to 4 claim 1 , wherein the following equation is fulfilled:
1800
≤
∑
i
x
i
·
T
mi
(
5
)
where x i is the atomic fraction of element i in alloy bulk composition and T mi is the melting point of pure element i.
6 . (canceled)
7 . The alloy of any of claims 1 to 6 claim 1 , wherein the following equation is fulfilled:
14.
≥
0.048
x
Al
+
1.933
x
Co
+
0.489
x
Cr
+
0.381
x
Cu
+
0.024
x
Fe
+
0.1
x
Mn
+
3.848
x
Mo
+
6.829
x
Nb
+
0.816
x
Ni
+
666.621
x
Re
+
55.189
x
Ta
+
0.543
x
Ti
+
18.899
x
V
+
6.49
x
W
+
3.32
x
Zr
where x x is the atomic fraction of element x in the alloy.
8 - 9 . (canceled)
10 . The alloy of claim 1 , including 33 at % or less aluminium.
11 . (canceled)
12 . The alloy of claim 1 , including 2 at % or more zirconium.
13 . (canceled)
14 . The alloy of claim 1 , including 2 at % or more vanadium.
15 . (canceled)
16 . The alloy of claim 1 , including 2 at % or more tungsten.
17 - 20 . (canceled)
21 . The alloy of claim 1 , including 0.5 at % or more nickel.
22 . (canceled)
23 . The alloy of claim 1 , including 5 at % or more titanium.
24 . (canceled)
25 . The alloy of claim 1 , including 2 at % or more tantalum.
26 . (canceled)
27 . The alloy of claim 1 , including 5 at % or more niobium.
28 . (canceled)
29 . The alloy of claim 1 , including 2 at % or more molybdenum.
30 . (canceled)
31 . The alloy of claim 1 , including 0.5 at % or more cobalt.
32 - 34 . (canceled)
35 . The alloy of claim 1 , including 0.5 at % or more manganese.
36 - 37 . (canceled)
38 . The alloy of claim 1 , wherein the following equation is fulfilled:
4.4
≥
∑
i
x
i
·
VEC
i
39 . The alloy of claim 1 , wherein the following equation is satisfied:
A
W
+
0.8
A
Ta
≤
37.8
where A Ta and A W are the atomic percent of tantalum and tungsten, respectively, in the alloy.
40 . (canceled)
41 . The alloy of claim 1 , wherein the following equation is satisfied:
A
Zr
+
A
Ti
≥
6
where A Zr and A Ti are the amounts in atomic percent of zirconium and titanium respectively.
42 . The alloy of claim 1 , wherein the following equation is satisfied:
A
V
+
1.15
A
W
≤
28.9
where A V and A W are the amounts in atomic percent of vanadium and tungsten respectively.
43 - 53 . (canceled)Join the waitlist — get patent alerts
Track US2025154630A1 — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.