Ferrous alloy for turbine components and heat treatment for...

Details Ferrous alloy for turbine components and heat treatment for... Ferrous alloy for turbine components and heat treatment for...

C - Chemistry, Metallurgy

21

D

75/120, 148/48,

C21D 6/00 (2006.01) C21D 9/00 (2006.01) C22C 38/00 (2006.01) C22C 38/22 (2006.01) F01D 5/02 (2006.01) F01D 5/12 (2006.01)

Patent

CA 2038442

55,709 ABSTRACT OF THE DISCLOSURE This invention provides alloys having optimum high and low temperature mechanical properties for use of both the high and low pressure ends of turbine rotors in power generation turbine service temperatures of about 75-1200-F (24-649-C). The alloys include about 8.00-9.5 wt.%Cr and about 0.85-1.05 wt.%Mo and are heat treated at 1225-1350-F (663-732-C) for at least about one hour. The alloys and the components manufactured from these alloys preferably include a room temperature .2% yield strength of about 80-110 ksi (551-758 MPa).

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