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    NICKEL-BASE ALLOY
    11.
    发明专利
    NICKEL-BASE ALLOY 未知

    公开(公告)号：CA2480281C

    公开(公告)日：2009-10-20

    申请号：CA2480281

    申请日：2003-05-06

    Applicant: ATI PROPERTIES INC

    Inventor： CAO WEI-DI

    IPC: C22C19/05 ,  C22F1/10

    Abstract: A nickel-base alloy includes, in weight percent, up to about 0.10 percent carbon; about 12 up to about 20 percent chromium; up to about 4 percent molybdenum; up to about 6 percent tungsten, wherein the sum of molybdenum and tungsten is at least about 2 percent and not more than about 8 percent; about 5 up to about 12 percent cobalt; up to about 14 percent iron; about 4 percent up to about 8 percent niobium; about 0.6 percent up to about 2.6 percent aluminum; about 0.4 percent up to about 1.4 percent titanium; about 0.003 percent up to about 0.03 percent phosphorous; about 0.003 percent up to about 0.015 percent boron; nickel; and incidental impurities. The sum of atomic percent aluminum and atomic percent titanium is from about 2 to about 6 percent, the ratio of atomic percent aluminum to atomic percent titanium is at least about 1.5, and the atomic percent of aluminum plus titanium divided by the atomic percent of niobium equals about 0.8 to about 1.3. The nickel-base alloy may be provided in the form of an article of manufacture, such as, for example, a disk, a blade, a fastener, a case, or a shaft. A method for making a nickel-base alloy also is disclosed. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

    12.
    发明专利
    未知

    公开(公告)号：DE602004015325D1

    公开(公告)日：2008-09-04

    申请号：DE602004015325

    申请日：2004-08-17

    Applicant: ATI PROPERTIES INC

    Inventor： CAO WEI-DI

    IPC: C22C38/42 ,  A41C1/14

    Abstract: A precipitation hardenable martensitic stainless steel that includes, in percent by weight, 11.0 to 12.5 percent chromium, 1.0 to 2.5 percent molybdenum, 0.15 to 0.5 percent titanium, 0.7 to 1.5 percent aluminum, 0.5 to 2.5 percent copper, 9.0 to 11.0 percent nickel, up to 0.02 percent carbon, up to 2.0 percent tungsten, and up to 0.001 percent boron. Articles formed from the stainless steel and methods of forming the same are also disclosed.

    16.
    发明专利
    未知

    公开(公告)号：AT402273T

    公开(公告)日：2008-08-15

    申请号：AT04821341

    申请日：2004-08-17

    Applicant: ATI PROPERTIES INC

    Inventor： CAO WEI-DI

    IPC: C22C38/42 ,  A41C1/14

    Abstract: A precipitation hardenable martensitic stainless steel that includes, in percent by weight, 11.0 to 12.5 percent chromium, 1.0 to 2.5 percent molybdenum, 0.15 to 0.5 percent titanium, 0.7 to 1.5 percent aluminum, 0.5 to 2.5 percent copper, 9.0 to 11.0 percent nickel, up to 0.02 percent carbon, up to 2.0 percent tungsten, and up to 0.001 percent boron. Articles formed from the stainless steel and methods of forming the same are also disclosed.

    METHODS TO IMPROVE HOT WORKABILITY OF METAL ALLOYS
    17.
    发明专利
    METHODS TO IMPROVE HOT WORKABILITY OF METAL ALLOYS 未知

    公开(公告)号：ZA201502056B

    公开(公告)日：2016-01-27

    申请号：ZA201502056

    申请日：2015-03-25

    Applicant: ATI PROPERTIES INC

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

    Abstract: A method of processing an alloy workpiece to reduce thermal cracking comprises 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.

    Nickel-base alloy
    19.
    发明专利
    Nickel-base alloy 未知

    公开(公告)号：AU2003234486B2

    公开(公告)日：2010-04-01

    申请号：AU2003234486

    申请日：2003-05-06

    Applicant: ATI PROPERTIES INC

    Inventor： CAO WEI-DI

    IPC: C22C19/05 ,  C22F1/10

    Abstract: A nickel-base alloy includes, in weight percent, up to about 0.10 percent carbon; about 12 up to about 20 percent chromium; up to about 4 percent molybdenum; up to about 6 percent tungsten, wherein the sum of molybdenum and tungsten is at least about 2 percent and not more than about 8 percent; about 5 up to about 12 percent cobalt; up to about 14 percent iron; about 4 percent up to about 8 percent niobium; about 0.6 percent up to about 2.6 percent aluminum; about 0.4 percent up to about 1.4 percent titanium; about 0.003 percent up to about 0.03 percent phosphorous; about 0.003 percent up to about 0.015 percent boron; nickel; and incidental impurities. The sum of atomic percent aluminum and atomic percent titanium is from about 2 to about 6 percent, the ratio of atomic percent aluminum to atomic percent titanium is at least about 1.5, and the atomic percent of aluminum plus titanium divided by the atomic percent of niobium equals about 0.8 to about 1.3. The nickel-base alloy may be provided in the form of an article of manufacture, such as, for example, a disk, a blade, a fastener, a case, or a shaft. A method for making a nickel-base alloy also is disclosed. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

    20.
    发明专利
    未知

    公开(公告)号：BRPI0415106A

    公开(公告)日：2006-11-28

    申请号：BRPI0415106

    申请日：2004-09-28

    Applicant: ATI PROPERTIES INC

    Inventor： CAO WEI-DI ,  KENNEDY RICHARD L

    IPC: C22C19/05 ,  C22F1/10

    Abstract: The present invention relates to a method of heat treating a nickel-base alloy, the nickel-base alloy comprising, in percent by weight, up to 0.1 carbon, from 12 to 20 chromium, up to 4 molybdenum, up to 6 tungsten, from 5 to 12 cobalt, up to 14 iron, from 4 to 8 niobium, from 0.6 to 2.6 aluminium, from 0.4 to 1.4 titanium, from 0.003 to 0.03 phosphorus, from 0.003 to 0.015 boron, balance nickel and incidental impurities; wherein a sum of the weight percent of molybdenum and the weight percent of tungsten is at least 2 and not more than 8, and wherein a sum of atomic percent aluminium and atomic percent titanium is from 2 to 6, a ratio of atomic percent aluminium to atomic percent titanium is at least 1.5, and the sum of atomic percent aluminium and atomic percent titanium divided by atomic percent niobium is from 0.8 to 1.3, the method comprising: solution treating the nickel-base alloy for no greater than 4 hours at a solution temperature ranging from 940°C (1725°F) to 1010°C (1850°F), cooling the nickel-base alloy at a first cooling rate after solution treating the nickel-base alloy, aging the solution treated nickel-base alloy in a first aging treatment for no greater than 8 hours at a temperature ranging from 740°C (1365°F) to 788°C (1450°F), and aging the nickel-base alloy in a second aging treatment for at least 8 hours at a second aging temperature, the second aging temperature ranging from 621°C (1150°F) to 704°C (1300°F).

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