Superalloy single crystal articles

Details Superalloy single crystal articles Superalloy single crystal articles

C - Chemistry, Metallurgy

22

C

75/113, 148/3.6

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

Patent

CA 1206398

-16- Superalloy Single Crystal Articles Abstract A specific composition range and process sequence are described for the production of single crystal super- alloy articles which have an exceptional combination of high temperature mechanical properties and resistance to oxidation and hot corrosion. The nominal composition is 6% Ta, 9% Cr, 5% Co, 1% Ti, 1% Mo, 7% W, 5.5% Al, .15% Hf balance essentially nickel. Material of this composition is cast and solidified in single crystal form and heat treated to produce an optimum micro- structure.

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