Nickel-base superalloy systems

Details Nickel-base superalloy systems Nickel-base superalloy systems

C - Chemistry, Metallurgy

22

C

75/16

C22C 19/03 (2006.01) C22C 19/05 (2006.01)

Patent

CA 1233675

NICKEL-BASE SUPERALLOY SYSTEMS Abstract of the Disclosure Alloy compositions for nickel-base superalloys having the qualities of weldability, castability and forge- ability together with improved high temperature strength and rupture properties are disclosed. The weldability is improved by varying the Al, Ti, Nb and Ta content so as to insure that only the favorable ?" precipitates are formed in the alloy. The high temperature properties of the alloy compositions are optimized by controlling the content of the major alloying elements Co and Cr. Preferably the alloy is substantially free of Fe.

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