Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 15, 2009
Patent Application Number
11079772
Date Filed
March 15, 2005
Patent Primary Examiner
Patent abstract
A method is disclosed for recovering the properties of single crystal and directionally solidified Nickel based superalloys and articles made thereof, after use in a high temperature environment. The method comprises the steps of a stress relief treatment, a γ′ rejuvenation heat treatment at a temperature below the γ′-solvus temperature (Tsolvus, γ′) of the superalloy, a precipitation heat treatment and an aging heat treatment.
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