-
公开(公告)号：CA2540212A1
公开(公告)日：2005-04-28
申请号：CA2540212
申请日：2004-09-28
Applicant: ATI PROPERTIES INC
Inventor： KENNEDY RICHARD L , CAO WEI-DI
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).
-
公开(公告)号：AU2004282496A1
公开(公告)日：2005-04-28
申请号：AU2004282496
申请日：2004-09-28
Applicant: ATI PROPERTIES INC
Inventor： KENNEDY RICHARD L , CAO WEI-DI
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).
-
公开(公告)号：CA2885932C
公开(公告)日：2019-08-20
申请号：CA2885932
申请日：2014-03-07
Applicant: ATI PROPERTIES INC
Inventor： FORBES JONES ROBIN M , KENNEDY RICHARD L , CAO WEI-DI
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.
-
公开(公告)号：MX2015005228A
公开(公告)日：2015-08-05
申请号：MX2015005228
申请日：2014-03-07
Applicant: ATI PROPERTIES INC
Inventor： JONES ROBIN M FORBES , KENNEDY RICHARD L , CAO WEI-DI
Abstract: Un método para procesar una pieza de trabajo de aleación para reducir el agrietamiento térmico puede comprender pulverizar un material de recubrimiento metálico en al menos una parte de una superficie de la pieza de trabajo de aleación para formar un recubrimiento superficial unido metalúrgicamente a la pieza de trabajo de aleación. El recubrimiento superficial puede ser más dúctil que la pieza de trabajo de aleación y reduce la pérdida de calor de la pieza de trabajo de aleación.
-
公开(公告)号：CA2885932A1
公开(公告)日：2014-09-25
申请号：CA2885932
申请日：2014-03-07
Applicant: ATI PROPERTIES INC
Inventor： FORBES JONES ROBIN M , KENNEDY RICHARD L , CAO WEI-DI
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.
-
Patent Agency Ranking
公开(公告)号：DE19823911B4
公开(公告)日：2014-04-24
申请号：DE19823911
申请日：1998-05-28
Inventor： KENNEDY RICHARD L , CAO WEI-DI
Abstract: Rostfreier Stahl bestehend aus: 12,25% bis 13,25% Chrom, 7,5% bis 8,5% Nickel, 2,0% bis 2,5% Molybdän, 0,8% bis 1,35% Aluminium, nicht mehr als 0,05% Kohlenstoff, nicht mehr als 0,10% Silicium, nicht mehr als 0,10% Mangan, nicht mehr als 0,10% Phosphor, nicht mehr als 0,0025% Schwefel, nicht mehr als 0,0020% Stickstoff, weniger als 0,050% Titan, und Rest Eisen, wobei die Menge an Schwefel zuzüglich Stickstoff 0,0020% nicht übersteigt, und mit einer Bruchzähigkeit von mehr als 6944 N/mm–3/2 bei Streckengrenzenwerten unterhalb 1378 N/mm2.
-
公开(公告)号：CA2540212C
公开(公告)日：2011-11-15
申请号：CA2540212
申请日：2004-09-28
Applicant: ATI PROPERTIES INC
Inventor： CAO WEI-DI , KENNEDY RICHARD L
Abstract: Embodiments of the present invention relate to nickel-base alloys, and in particular 718-type nickel-base alloys, having a desired microstructure that is predominantly strengthened by .gamma.'-phase precipitates and comprises an amount of at least one grain boundary precipitate. Other embodiments of the present invention relate to methods of heat treating nickel-base alloys, and in particular 718-type nickel-base alloys, to develop a desired microstructure that can impart thermally stable mechanical properties. Articles of manufacture using the nickel-base alloys and methods of heat treating nickel-base alloys according to embodiments of the present invention are also disclosed.
-
公开(公告)号：AU2004282496B2
公开(公告)日：2010-11-11
申请号：AU2004282496
申请日：2004-09-28
Applicant: ATI PROPERTIES INC
Inventor： KENNEDY RICHARD L , CAO WEI-DI
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).
-
公开(公告)号：AU2009277046A1
公开(公告)日：2010-02-04
申请号：AU2009277046
申请日：2009-03-16
Applicant: ATI PROPERTIES INC
Inventor： CAO WEI-DI , MCDEVITT ERIN T
Abstract: A thermal mechanical treatment method includes hot working a precipitation hardening martensitic stainless steel, quenching the stainless steel, and aging the stainless steel. According to certain embodiments, the thermal mechanical treatment does not include solution heat treating the stainless steel prior to aging or cryogenically cooling the stainless steel. An article includes a precipitation hardening martensitic stainless steel having a process history that includes hot working the stainless steel, quenching the stainless steel, and aging the stainless steel. According to certain embodiments, the process history does not include solution heat treating the stainless steel prior to aging or cryogenically cooling the stainless steel.
-
公开(公告)号：AU2003234486A1
公开(公告)日：2003-12-02
申请号：AU2003234486
申请日：2003-05-06
Applicant: ATI PROPERTIES INC , CAO WEI DI
Inventor： CAO WEI-DI
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.
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.026 seconds)
