Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Reexamination Certificate
2005-03-15
2009-12-15
King, Roy (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
C148S675000
Reexamination Certificate
active
07632362
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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Baumann Robert
Fernihough John
Konter Maxim
Alstom Technology Ltd
Buchanan & Ingersoll & Rooney PC
King Roy
Roe Jessee R.
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