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
- Subject:
- 36 MATERIALS SCIENCE
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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