NICKEL-BASE SUPERALLOY

摘要

A nickel-base superalloy, in particular for turbine vanes 130 or turbine blades 120 is provided. The nickel-base superalloy comprises (in wt%) : C: ‰¤0.1 Si: ‰¤0.2 Mn: ‰¤0.2 P: ‰¤0.005 S: ‰¤0.0015 Al: 4.0 to 5.5 B: ‰¤0.03 Co: 5.0 to 9.0 Cr: 18.0 to 22.0 Cu: ‰¤0.1 Fe: ‰¤0.5 Hf: 0.9 to 1.3 Mg: ‰¤0.002 Mo: ‰¤0.5 N: ‰¤0.0015 Nb: ‰¤0.01 O: ‰¤0.0015 Ta: 4.8 to 5.2 Ti: 0.8 to 2.0 W: 1.8 to 2.5 Zr: ‰¤0.01 Ni: balance
and inevitable impurities.