NICKEL-BASED SUPERALLOY AND ARTICLES

A composition of matter includes from about 16 to about 20 wt% chromium, greater than 6 to about 10 wt% aluminum, from about 2 to about 10 wt% iron, less than about 0.04 wt% yttrium, less than about 12 wt% cobalt, less than about 1.0 wt% manganese, less than about 1.0 wt% molybdenum, less than about 1.0 wt% silicon, less than about 0.25 wt% carbon, about 0.03 wt% boron, less than about 1.0 wt% tungsten, less than about 1.0 wt% tantalum, about 0.5 wt% titanium, about 0.5 wt% hafnium, about 0.5 wt% rhenium, about 0.4 wt% lanthanide elements, and the balance being nickel and incidental impurities. This nickel-based superalloy composition may be used in superalloy articles, such as a blade (10), nozzle, a shroud, a splash plate, a squealer tip (20) of the blade, and a combustor of a gas turbine engine.