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    THERMO-MECHANICAL PROCESSING OF NICKEL-BASE ALLOYS
    73.
    发明专利
    THERMO-MECHANICAL PROCESSING OF NICKEL-BASE ALLOYS 未知

    公开(公告)号：SG195248A1

    公开(公告)日：2013-12-30

    申请号：SG2013088869

    申请日：2012-05-07

    Applicant: ATI PROPERTIES INC

    Inventor： FORBES JONES ROBIN M ,  ROCK CHRISTOPHER A

    Abstract: A thermo-mechanical treatment process is disclosed. A nickel-base alloy workpiece is heated in a first heating step to a temperature greater than the M23C6 carbide solvus temperature of the nickel-base alloy. The nickel-base alloy workpiece is worked in a first working step to a reduction in area of 20% to 70%. The nickel-base alloy workpiece is at a temperature greater than the M23C6 carbide solvus temperature when the first working step begins. The nickel-base alloy workpiece is heated in a second working step to a temperature greater than 1700 F (926 C) and less than the M23C6 carbide solvus temperature of the nickel-base alloy. The nickel-base alloy workpiece is not permitted to cool to ambient temperature between completion of the first working step and the beginning of the second heating step. The nickel-base alloy workpiece is worked to a second reduction in area of 20% to 70%. The nickel-base alloy workpiece is at a temperature greater than 1700 F (926 C) and less than the M23C6 carbide solvus temperature of the nickel-base alloy when the second working step begins.

    ION PLASMA ELECTRON EMITTERS FOR A MELTING FURNACE
    74.
    发明专利
    ION PLASMA ELECTRON EMITTERS FOR A MELTING FURNACE 未知

    公开(公告)号：NZ597859A

    公开(公告)日：2013-10-25

    申请号：NZ59785910

    申请日：2010-08-10

    Applicant: ATI PROPERTIES INC

    Inventor： FORBES JONES ROBIN M

    IPC: F27B3/20 ,  C22B9/16 ,  F27D99/00 ,  H01J37/305

    Abstract: 597859 Disclosed is a furnace for melting an electrically conductive metallic material using two wire discharge ion plasma electron emitters. The apparatus comprises a vacuum chamber; a hearth disposed in the vacuum chamber; at least one ion plasma electron emitter disposed in or adjacent the vacuum chamber, the at least one ion plasma electron emitter being configured to produce a first field of electrons having a first area of coverage and sufficient energy to heat the electrically conductive metallic material to its melting temperature. The electrically conductive metallic material is at least one material selected from titanium, a titanium alloy, tungsten, niobium, tantalum, platinum, palladium, zirconium, iridium, nickel, a nickel base alloy, iron, an iron base alloy, cobalt, and a cobalt base alloy. The at least one ion plasma electron emitter is positioned to direct the first field of electrons into the vacuum chamber. At least one of a mold and an atomizing apparatus is positioned to receive the electrically conductive metallic material from the hearth; and an auxiliary ion plasma electron emitter disposed in or adjacent the vacuum chamber, the auxiliary ion plasma electron emitter being configured to produce a second field of electrons having a second area of coverage and sufficient energy to at least one of heat at least a portion of the electrically conductive metallic material to at least its melting temperature, melt solid condensate within the electrically conductive metallic material, and provide heat to regions of a forming ingot. The auxiliary ion plasma electron emitter is configured to focus the second field of electrons such that the second area of coverage is smaller than the first area of coverage. A steering device is configured for steering the second field of electrons emitted by the auxiliary ion plasma electron emitter to direct the focused second field of electrons toward at least one of the at least a portion of the electrically conductive metallic material, the solid condensate, and the forming ingot. The steering device is configured to selectively steer the second field of electrons produced by the auxiliary ion plasma electron emitter within at least a region of the first area of coverage.

    Improving hot workability of metal alloys via surface coating
    75.
    发明专利
    Improving hot workability of metal alloys via surface coating 未知

    公开(公告)号：AU2012207624A1

    公开(公告)日：2013-07-25

    申请号：AU2012207624

    申请日：2012-01-03

    Applicant: ATI PROPERTIES INC

    Inventor： MINISANDRAM RAMESH S ,  KENNEDY RICHARD L ,  FORBES JONES ROBIN M

    IPC: C22C19/00

    Abstract: A method of processing an alloy ingot or other alloy workpiece to reduce thermal cracking may generally comprise depositing a glass material onto at least a portion of a surface of a workpiece, and heating the glass material to form a surface coating on the workpiece that reduces heat loss from the workpiece. The present disclosure also is directed to an alloy workpieces processed according to methods described herein, and to articles of manufacture including or made from alloy workpieces made according to the methods.

    THERMO-MECHANICAL PROCESSING OF NICKEL-BASE ALLOYS
    76.
    发明专利
    THERMO-MECHANICAL PROCESSING OF NICKEL-BASE ALLOYS 未知

    公开(公告)号：CA2836842A1

    公开(公告)日：2012-12-06

    申请号：CA2836842

    申请日：2012-05-07

    Applicant: ATI PROPERTIES INC

    Inventor： FORBES JONES ROBIN M ,  ROCK CHRISTOPHER D

    IPC: C22C19/05 ,  C22F1/10

    Abstract: A thermo-mechanical treatment process is disclosed. A nickel-base alloy workpiece is heated in a first heating step to a temperature greater than the M23C6 carbide solvus temperature of the nickel-base alloy. The nickel-base alloy workpiece is worked in a first working step to a reduction in area of 20% to 70%. The nickel-base alloy workpiece is at a temperature greater than the M23C6 carbide solvus temperature when the first working step begins. The nickel-base alloy workpiece is heated in a second working step to a temperature greater than 1700 F (926 C) and less than the M23C6 carbide solvus temperature of the nickel-base alloy. The nickel-base alloy workpiece is not permitted to cool to ambient temperature between completion of the first working step and the beginning of the second heating step. The nickel-base alloy workpiece is worked to a second reduction in area of 20% to 70%. The nickel-base alloy workpiece is at a temperature greater than 1700 F (926 C) and less than the M23C6 carbide solvus temperature of the nickel-base alloy when the second working step begins.

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