Lower cost high strength single crystal superalloys with reduced re and ru content
Abstract
A first embodiment of a nickel based alloy consists essentially of from 3.0 to 5.2 wt % chromium, from 1.5 to 3.0 wt % molybdenum, from 6.0 to 12.5 wt % tungsten, from 5.0 to 11 wt % tantalum, from 5.5 to 6.5 wt % aluminum, from 11 to 14 wt % cobalt, from 0.001 to 1.75 wt % rhenium, from 0.2 to 0.6 wt % hafnium, up to 0.05 wt % yttrium, up to 3.0 wt % ruthenium, and the balance nickel. Another embodiment of a nickel based alloy consists essentially of from 1.0 to 3.0 wt % chromium, up to 2.5 wt % molybdenum, from 11 to 16 wt % tungsten, from 4.0 to 8.0 tantalum, from 5.7 to 6.5 wt % aluminum, from 11 to 15 wt % cobalt, from 2.0 to 4.0 wt % rhenium, from 0.2 to 0.6 wt % hafnium, up to 0.05 wt % yttrium, up to 3.0 wt % ruthenium, and the balance nickel.
Claims
exact text as granted — not AI-modified1 . A nickel based alloy consisting essentially of from 3.0 to 5.2 wt % chromium, from 1.5 to 3.0 wt % molybdenum, from 6.0 to 12.5 wt % tungsten, from 5.0 to 11 wt % tantalum, from 5.5 to 6.5 wt % aluminum, from 11 to 14 wt % cobalt, up to 1.75 wt % rhenium, from 0.2 to 0.6 wt % hafnium, up to 0.05 wt % yttrium, up to 3.0 wt % ruthenium, and the balance nickel.
2 . The nickel based alloy of claim 1 , wherein said chromium is present in an amount from 4.0 to 5.0 wt %.
3 . The nickel based alloy of claim 1 , wherein said molybdenum is present in an amount from 1.7 to 2.3 wt %.
4 . The nickel based alloy of claim 1 , wherein said tungsten is present in an amount from 7.0 to 12 wt %.
5 . The nickel based alloy of claim 1 , wherein said tantalum is present in an amount from 5.5 to 10 wt %.
6 . The nickel based alloy of claim 1 , wherein said aluminum is present in an amount from 5.6 to 6.25 wt %.
7 . The nickel based alloy of claim 1 , wherein said cobalt is present in an amount from 11.5 to 13.5 wt %.
8 . The nickel based alloy of claim 1 , wherein said rhenium is present in an amount from 0.001 to 1.75 wt %.
9 . The nickel based alloy of claim 1 , wherein said hafnium is present in an amount from 0.2 to 0.4 wt %.
10 . The nickel based alloy of claim 1 , wherein said yttrium is present in an amount from 0.001 to 0.01 wt %.
11 . The nickel based alloy of claim 10 , wherein the total ruthenium and rhenium content is no greater than 6.0 wt %.
12 . A nickel based alloy consisting essentially of from 1.0 to 3.0 wt % chromium, up to 2.5 wt % molybdenum, from 11 to 16 wt % tungsten, from 4.0 to 8.0 tantalum, from 5.7 to 6.5 wt % aluminum, from 11 to 15 wt % cobalt, from 2.0 to 4.0 wt % rhenium, from 0.2 to 0.6 wt % hafnium, up to 0.05 wt % yttrium, up to 3.0 wt % ruthenium, and the balance nickel.
13 . The nickel based alloy of claim 12 , wherein said chromium is present in an amount from 1.5 to 2.5 wt %.
14 . The nickel based alloy of claim 12 , wherein said molybdenum is present in an amount from 0.5 to 1.5 wt %.
15 . The nickel based alloy of claim 12 , wherein said tungsten is present in an amount from 11.5 to 13.5 wt %.
16 . The nickel based alloy of claim 12 , wherein said tantalum is present in an amount from 5.0 to 7.0 wt %.
17 . The nickel based alloy of claim 12 , wherein said aluminum is present in an amount from 5.8 to 6.25 wt %.
18 . The nickel based alloy of claim 12 , wherein said cobalt is present in an amount from 11.5 to 13.5 wt %.
19 . The nickel based alloy of claim 12 , wherein said rhenium is present in amount from 2.5 to 3.5 wt %.
20 . The nickel based alloy of claim 12 , wherein said hafnium is present in an amount from 0.2 to 0.4 wt %.
21 . The nickel based alloy of claim 12 , wherein said yttrium is present in an amount of from 0.001 to 0.01 wt %.
22 . The nickel based alloy of claim 12 , wherein the total ruthenium and rhenium content is no greater than 6.0 wt %.Join the waitlist — get patent alerts
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