Patent ID: 6287398
Filing Date: 2001-09-11
Classification: C22C

Abstract:
A nickel-base alloy consisting essentially of, by weight percent, about 50 to 60 nickel, about 19 to 23 chromium, about 18 to 22 iron, about 3 to 4.4 aluminum, about 0 to 0.4 titanium, about 0.05 to 0.5 carbon, about 0.002 to 0.1 cerium, about 0.001 to 0.3 yttrium, about 0.005 to 0.4 total cerium plus yttrium, about 0.0005 to 0.4 zirconium, about 0 to 2 niobium, about 0 to 2 manganese, about 0 to 1.5 silicon, about 0 to 0.1 nitrogen, about 0 to 0.5 calcium and magnesium, about 0 to 0.1 boron and incidental impurities; and said alloy forming about 1 to 5 mole percent Cr.sub.7 C.sub.3 after 24 hours at a temperature between about 950 and about 1150.degree. C. for high temperature strength.