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    Methods to improve hot workability of metal alloys
    11.
    发明专利
    Methods to improve hot workability of metal alloys 未知

    公开(公告)号：NZ706328A

    公开(公告)日：2019-11-29

    申请号：NZ70632814

    申请日：2014-03-07

    Applicant: ATI PROPERTIES INC

    Inventor： KENNEDY RICHARD L ,  FORBES JONES ROBIN M ,  CAO WEI-DI

    IPC: B21J1/06 ,  B21C23/32 ,  B21J3/00 ,  C23C4/04 ,  C23C4/10 ,  C23C4/18

    Abstract: The present invention is directed to alloy ingots and other alloy workpieces, and to methods for processing alloy ingots and other alloy workpieces. Ingots and other workpieces composed of crack sensitive alloys may form cracks along their surfaces and/or edges during hot working operations which may increase production time and expense, and reduce yield. The method of the present invention provides a more efficient and/or cost-effective method of hot working crack sensitive alloys. Specifically, in one embodiment the invention provides a method of processing an alloy workpiece to reduce thermal cracking, the method comprising spraying a metallic coating material onto at least a portion of a surface of the alloy workpiece to form a surface coating metallurgically bonded to the alloy workpiece; wherein the surface coating is more ductile than the alloy workpiece; and wherein the surface coating reduces heat loss from the alloy workpiece. In another embodiment, the invention also provides a method of processing an alloy workpiece to reduce thermal cracking, the method comprising: inserting the alloy workpiece into a metallic canister, wherein the metallic canister has a lower coefficient of thermal expansion than the alloy workpiece and includes an inner surface comprising a nickel-boron coating on at least a portion of the inner surface; encapsulating the alloy workpiece in the metallic canister to provide a canned assembly; removing at least a portion of gas from the interior of the canned assembly; and heating the canned assembly to transient liquid phase bond the alloy workpiece to the metallic canister; wherein the metallic canister reduces heat loss from the alloy workpiece.

    PROCESSING ROUTES FOR TITANIUM AND TITANIUM ALLOYS
    15.
    发明专利
    PROCESSING ROUTES FOR TITANIUM AND TITANIUM ALLOYS 未知

    公开(公告)号：AU2015271901A1

    公开(公告)日：2016-01-21

    申请号：AU2015271901

    申请日：2015-12-17

    Applicant: ATI PROPERTIES INC

    Inventor： FORBES JONES ROBIN M ,  MANTIONE JOHN V ,  DE SOUZA URBAN J ,  THOMAS JEAN-PHILIPPE ,  MINISANDRAM RAMESH S ,  KENNEDY RICHARD L ,  DAVIS MARK R

    IPC: C22C14/00 ,  C22F1/18

    Abstract: A rnethod f refining grain size in a workpiece conrising a metallic material selected from titanium and a titanium alloy, the method comprising: heating the workpiece to a workpiece forging temperature range within an alpha+beta phase field of the metallic material, wherein the workpiece comprises a cylindrical-like shape and a starting cross sectional dimension; upset forging the workpiece within the workpiece forging temperature range; and multiple pass draw forging the workpiece within the workpiece forging temperature range; wherein multiple pass draw forging comprises incrementally rotating the workpiece in a rotational direction followed by draw forging the workpiece; and wherein incrementally rotating and draw forging is repeated until the workpiece comprises the starting cross-sectional dimension. 25840394v ~~~~ RAW K\N~NtV~S d NN .\ t 4 t so W '> W \WKNT& Is>2

    Thermo-mechanical processing of nickel-base alloys
    16.
    发明专利
    Thermo-mechanical processing of nickel-base alloys 未知

    公开(公告)号：NZ618126A

    公开(公告)日：2015-12-24

    申请号：NZ61812612

    申请日：2012-05-07

    Applicant: ATI PROPERTIES INC

    Inventor： FORBES JONES ROBIN M ,  ROCK CHRISTOPHER A

    IPC: C22C19/05 ,  C22F1/10

    Abstract: Disclosed is a thermo-mechanical treatment process for nickel-base alloys. The process comprising a first heating step comprising heating a nickel-base alloy workpiece to a temperature in the range of 1093°C (2000°F) to 1163°C (2125°F); a first forging step comprising rotary forging the heated nickel-base alloy workpiece to a reduction in area of 30% to 70%, wherein the nickel-base alloy workpiece is at a temperature in the range of 1093°C (2000°F) to 1163°C (2125°F) when the first forging step begins; a second heating step comprising heating the rotary-forged nickel-base alloy workpiece to a temperature in the range of 954°C (1750°F) to 1052°C (1925°F), wherein the rotary-forged nickel-base alloy workpiece is maintained at a temperature of at least 926°C (1700°F) between completion of the first forging step and beginning of the second heating step; and a second forging step comprising rotary forging the heated nickel-base alloy workpiece to a reduction in area of 20% to 70%, wherein the nickel-base alloy workpiece is at a temperature in the range of 954°C (1750°F) to 1052°C (1925°F) when the second forging step begins; wherein the nickel-base alloy workpiece comprises, by weight, up to 0.05% carbon, 27.0% to 31.0% chromium, up to 0.5% copper, 7.0% to 11.0% iron, up to 0.5% manganese, up to 0.015% sulfur, up to 0.5% silicon, at least 58% nickel, and incidental impurities. Also disclosed is a similar method wherein the temperatures of the process are defined in relation to the M23C6 carbide solvus temperature of the nickel-base alloy having by weight, up to 0.05% carbon, 27.0% to 31.0% chromium, up to 0.5% copper, 7.0% to 11.0% iron, up to 0.5% manganese, up to 0.015% sulfur, up to 0.5% silicon, at least 58% nickel, and incidental impurities.

    THERMOMECHANICAL PROCESSING OF ALPHA-BETA TITANIUM ALLOYS
    17.
    发明专利
    THERMOMECHANICAL PROCESSING OF ALPHA-BETA TITANIUM ALLOYS 未知

    公开(公告)号：SG11201506118TA

    公开(公告)日：2015-10-29

    申请号：SG11201506118T

    申请日：2014-02-28

    Applicant: ATI PROPERTIES INC

    Inventor： THOMAS JEAN-PHILIPPE A ,  MINISANDRAM RAMESH S ,  FORBES JONES ROBIN M ,  MANTIONE JOHN V ,  BRYAN DAVID J

    IPC: C22C14/00 ,  C22F1/18

    Abstract: One embodiment of a method of refining alpha-phase grain size in an alpha-beta titanium alloy comprises working an alpha-beta titanium alloy at a first working temperature within a first temperature range in the alpha-beta phase field of the alpha-beta titanium alloy. The alloy is slow cooled from the first working temperature. On completion of working at and slow cooling from the first working temperature, the alloy comprises a primary globularized alpha-phase particle microstructure. The alloy is worked at a second working temperature within a second temperature range in the alpha-beta phase field. The second working temperature is lower than the first working temperature. The is worked at a third working temperature in a third temperature range in the alpha-beta phase field. The third working temperature is lower than the second working temperature. After working at the third working temperature, the titanium alloy comprises a desired refined alpha-phase grain size.

    Ion plasma electron emitters for a melting furnace
    19.
    发明专利
    Ion plasma electron emitters for a melting furnace 未知

    公开(公告)号：AU2010286883B2

    公开(公告)日：2015-01-15

    申请号：AU2010286883

    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: An apparatus for melting an electrically conductive metallic material comprises an auxiliary ion plasma electron emitter configured to produce a focused electron field including a cross-sectional profile having a first shape. The apparatus further comprises a steering system configured to direct the focused electron field to impinge the focused electron field on at least a portion of the electrically conductive metallic material to at least one of melt or heat any solidified portions of the electrically conductive metallic material, any solid condensate within the electrically conductive metallic material, and/or regions of a solidifying ingot.

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