Methods for preparing superalloy articles and related articles

Detor, Andrew Joseph; DiDomizio, Richard; Hanlon, Timothy; Shen, Chen; Zhou, Ning

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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:: Detor, Andrew Joseph; DiDomizio, Richard; Hanlon, Timothy; Shen, Chen; Zhou, Ning

Issue Date:: 2020-05-05

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

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C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C19/03 - based on nickel
C22C19/05 - with chromium
C22C19/055 - {with the maximum Cr content being at least 20% but less than 30%}
C22C19/056 - {with the maximum Cr content being at least 10% but less than 20%}

C - CHEMISTRY C22 - METALLURGY C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
C22F1/10 - of nickel or cobalt or alloys based thereon

Show less

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

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                    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.

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                    Detor, Andrew Joseph, DiDomizio, Richard, Hanlon, Timothy, Shen, Chen, & Zhou, Ning. Methods for preparing superalloy articles and related articles.  United States.

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                    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.

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@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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