CAST NICKEL-IRON-BASE ALLOY COMPONENT AND PROCESS OF FORMING A CAST NICKEL-IRON-BASE ALLOY COMPONENT
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United States of America Patent
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Issued Date -
May 23, 2013
app pub date -
Nov 18, 2011
filing date -
Nov 18, 2011
priority date (Note) -
Abandoned
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Abstract
A cast nickel-iron-base alloy component having by weight about 12.0% to about 16.5% Cr, about 1.0% to about 2.0% Al, about 2.0% to about 3.0% Ti, about 2.0% to about 3.0% W, about 3.0 to about 5.0% Mo, up to about 0.1% Nb, up to about 0.2% Mn, up to about 0.1% Si, about 0.05% to about 0.10% C, about 0.003 to about 0.010% B, about 35% to about 37% Fe, and balance essentially Ni and inevitable impurities. The nickel-iron-base alloy component has a creep rupture life greater than about 1000 hours at about 25 ksi to about 30 ksi at about 1400° F. A method for forming the cast nickel-iron-base alloy component is also disclosed.
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