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Title: Methods for preparing superalloy articles and related articles

Abstract

A method for preparing an improved article including a nickel-based superalloy is presented. The method includes heat-treating a workpiece including a nickel-based superalloy at a temperature above the gamma-prime solvus temperature of the nickel-based superalloy and cooling the heat-treated workpiece with a cooling rate less than 50 degrees Fahrenheit/minute from the temperature above the gamma-prime solvus temperature of the nickel-based superalloy so as to obtain a cooled workpiece. The cooled workpiece includes a coprecipitate of a gamma-prime phase and a gamma-double-prime phase, wherein the gamma-prime phase of the coprecipitate has an average particle size less than 250 nanometers. An article having a minimum dimension greater than 6 inches is also presented. The article includes a material having a coprecipitate of a gamma-prime phase and a gamma-double-prime phase, wherein the gamma-prime phase of the coprecipitate has an average particle size less than 250 nanometers.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1650850
Patent Number(s):
10640858
Application Number:
15/198,658
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C - CHEMISTRY C22 - METALLURGY C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
DOE Contract Number:  
FE0026299
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/30/2016
Country of Publication:
United States
Language:
English

Citation Formats

Detor, Andrew Joseph, DiDomizio, Richard, Hanlon, Timothy, Shen, Chen, and Zhou, Ning. Methods for preparing superalloy articles and related articles. United States: N. p., 2020. Web.
Detor, Andrew Joseph, DiDomizio, Richard, Hanlon, Timothy, Shen, Chen, & Zhou, Ning. Methods for preparing superalloy articles and related articles. United States.
Detor, Andrew Joseph, DiDomizio, Richard, Hanlon, Timothy, Shen, Chen, and Zhou, Ning. Tue . "Methods for preparing superalloy articles and related articles". United States. https://www.osti.gov/servlets/purl/1650850.
@article{osti_1650850,
title = {Methods for preparing superalloy articles and related articles},
author = {Detor, Andrew Joseph and DiDomizio, Richard and Hanlon, Timothy and Shen, Chen and Zhou, Ning},
abstractNote = {A method for preparing an improved article including a nickel-based superalloy is presented. The method includes heat-treating a workpiece including a nickel-based superalloy at a temperature above the gamma-prime solvus temperature of the nickel-based superalloy and cooling the heat-treated workpiece with a cooling rate less than 50 degrees Fahrenheit/minute from the temperature above the gamma-prime solvus temperature of the nickel-based superalloy so as to obtain a cooled workpiece. The cooled workpiece includes a coprecipitate of a gamma-prime phase and a gamma-double-prime phase, wherein the gamma-prime phase of the coprecipitate has an average particle size less than 250 nanometers. An article having a minimum dimension greater than 6 inches is also presented. The article includes a material having a coprecipitate of a gamma-prime phase and a gamma-double-prime phase, wherein the gamma-prime phase of the coprecipitate has an average particle size less than 250 nanometers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

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Works referenced in this record:

Nickel base wrought alloy
patent, September 2013


Nickel base superalloy articles and method for making
patent, September 1988


Heat treatment for nickel-base alloys
patent, November 2001


Precipitation hardenable iron-nickel-chromium alloy having good swelling resistance and low neutron absorbence
patent, December 1980


High strength cast+HIP nickel base superalloy
patent, December 1989


Heat treatment method and components treated according to the method
patent, March 2014


Method for making a nickel base alloy having improved resistance to hydrogen embittlement
patent, August 1998


Nickle base superalloy articles and method for making
patent, March 1986


Method of heat treating a Ni-based superalloy article and article made thereby
patent, November 2012


Heat treatment method and components treated according to the method
patent, March 2014