Heat treated superalloy single crystal article and process

Details Heat treated superalloy single crystal article and process Heat treated superalloy single crystal article and process

C - Chemistry, Metallurgy

22

C

75/16, 148/3.6

C22C 19/00 (2006.01) C22C 19/05 (2006.01) C30B 11/00 (2006.01) C30B 21/02 (2006.01)

Patent

CA 1098425

ABSTRACT OF THE DISCLOSURE Nickel base superalloy single crystal articles formed from an alloy family and heat treated are described as is the process employed. The articles are substantially free from cobalt and the grain boundary strengtheners such as carbon, boron, and zirconium. The heat treatment process homogenizes the microstructure, and refines the gamma prime morphology. The superalloy has particular utility in the fabrication of airfoils (blades and vanes) for use in gas turbine engines.

291053

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