METHODS FOR PREPARING SUPERALLOY ARTICLES AND RELATED ARTICLES

    公开(公告)号:US20180002793A1

    公开(公告)日:2018-01-04

    申请号:US15198514

    申请日:2016-06-30

    CPC classification number: C22F1/10 C22C19/03 C22C19/05 C22C19/055 C22C19/056

    Abstract: A method for preparing an article including a nickel-based superalloy is presented. The method includes heat-treating a workpiece including a nickel-based superalloy at a temperature above a 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 gamma-prime precipitate phase having an average particle size less than 250 nanometers at a concentration of at least 10 percent by volume, and is substantially free of a gamma-double-prime phase. An article having a minimum dimension greater than 6 inches is also presented. The article includes a material that has a gamma-prime precipitate phase having an average particle size less than 250 nanometers, and is substantially free of a gamma-double-prime phase.

    Methods of forming high-temperature electroformed components and related components

    公开(公告)号:US11788198B2

    公开(公告)日:2023-10-17

    申请号:US17534979

    申请日:2021-11-24

    CPC classification number: C25D1/003 B64F5/10

    Abstract: An electroformed composite component includes reinforcing particles in a metal matrix. The composite component is formed by a method including passing an electric current between an anode and a cathode in the presence of an electrolyte. The electrolyte includes a metal salt and a plurality of reinforcing particle precursors. The method further includes depositing a composite layer on the cathode, wherein the composite layer includes the metal matrix and the plurality of reinforcing particle precursors dispersed in the metal matrix. An optional heat treatment can be performed subsequently to transform the precursor particles to more stable forms with concomitant improvement in composite material properties.

    Methods of forming high-temperature electroformed components and related components

    公开(公告)号:US11203815B2

    公开(公告)日:2021-12-21

    申请号:US16589355

    申请日:2019-10-01

    Abstract: An electroformed composite component includes reinforcing particles in a metal matrix. The composite component is formed by a method including passing an electric current between an anode and a cathode in the presence of an electrolyte. The electrolyte includes a metal salt and a plurality of reinforcing particle precursors. The method further includes depositing a composite layer on the cathode, wherein the composite layer includes the metal matrix and the plurality of reinforcing particle precursors dispersed in the metal matrix. An optional heat treatment can be performed subsequently to transform the precursor particles to more stable forms with concomitant improvement in composite material properties.

    METHODS FOR PREPARING SUPERALLOY ARTICLES AND RELATED ARTICLES

    公开(公告)号:US20180002794A1

    公开(公告)日:2018-01-04

    申请号:US15198658

    申请日:2016-06-30

    CPC classification number: C22F1/10 C22C19/03 C22C19/05 C22C19/055 C22C19/056

    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.

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