Single crystal nickel-base superalloy for turbine components

Details Single crystal nickel-base superalloy for turbine components Single crystal nickel-base superalloy for turbine components

C - Chemistry, Metallurgy

22

C

75/112, 148/55.1

C22C 19/05 (2006.01) C22C 1/02 (2006.01) C22F 1/10 (2006.01) C30B 11/00 (2006.01) C30B 21/00 (2006.01) C30B 29/52 (2006.01)

Patent

CA 1301488

SINGLE CRYSTAL NICKEL-BASE SUPERALLOY FOR TURBINE COMPONENTS ABSTRACT A single crystal nickel-base superalloy is disclosed having an improved incipient melting temperature and oxidation resistance. The single crystal nickel-base alloy of this invention is characterized by specific additions of chromium, tungsten, aluminum and tantalum to produce an alloy having moderate high temperature strength and improved oxidation resistance and incipient melting temperature. The nominal composition of my new single crystal alloy (in weight percent) is 10-15% Cr, 0-4% Co, 6-8.5% W, 6-7% Al, 0-1% Ti, 2-6% Ta, and the balance Nickel.

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