Nickel-base superalloy

摘要

A nickel-base superalloy for turbine vanes or turbine blades is provided. The nickel-base superalloy has in wt %: C: equal to or greater 0.1; Si:

主权项

1. A nickel-base super alloy, comprising (in wt %):
C: ≦0.1 Si: present in an amount up to 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: 18.2 to 19.2 Cu: ≦0.1 Fe: present in an amount up to 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.