Advanced high strength single crystal superalloy compositions

Details Advanced high strength single crystal superalloy compositions Advanced high strength single crystal superalloy compositions

C - Chemistry, Metallurgy

30

B

75/16

C30B 11/00 (2006.01) C22C 19/05 (2006.01) C30B 29/52 (2006.01)

Patent

CA 1251059

- 21 - Abstract of the Disclosure Advanced High Strength Single Crystal Superalloy Compositions A superalloy composition and single crystal articles of the composition are described. The broad range is 3-12% Cr, 0-3% Mo, 3-10% W, 0-5% Re, 6-12% Ta, 4-7% Al, 0-15% Co, 0-0.045% C, 0-0.02% B, 0-0.1% Zr, 0-0.8% Hf, 0-2% Nb, 0-1% V, 0-0.7% Ti, 0-10% (Ru+Rh+Pd+Os+Ir+Pt), balance essentially Ni. An equation is presented to select the most useful specific compositions from within this range. An exemplary preferred composition is 5.0% Cr, 10.0% Co, 2.0% Mo, 6.0% W, 3.1% Re, 5.6% Al, 9.0% Ta, 0.1% Hf, balance essentially Ni.

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