Producing nickel-base, cobalt-base, iron-base, iron-nickel-base, or iron-nickel-cobalt-base alloy articles by reduction of nonmetallic precursor compounds and melting
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C22B-003/44
C22B-003/00
C22B-005/16
C22B-005/00
C22C-001/02
출원번호
UP-0814965
(2004-03-31)
등록번호
US-7604680
(2009-11-10)
발명자
/ 주소
Shamblen, Clifford Earl
Woodfield, Andrew Philip
Ott, Eric Allen
Gigliotti, Michael Francis Xavier
출원인 / 주소
General Electric Company
대리인 / 주소
McNees Wallace & Nurick LLC
인용정보
피인용 횟수 :
4인용 특허 :
19
초록▼
A metallic article is produced by furnishing one or more nonmetallic precursor compound comprising the metallic base nickel, cobalt, iron, iron-nickel, or iron-nickel-cobalt, and at least one alloying element. The nonmetallic precursor compound(s) are chemically reduced to produce an initial metall
A metallic article is produced by furnishing one or more nonmetallic precursor compound comprising the metallic base nickel, cobalt, iron, iron-nickel, or iron-nickel-cobalt, and at least one alloying element. The nonmetallic precursor compound(s) are chemically reduced to produce an initial metallic particle without melting the initial metallic particle. The initial metallic particle is thereafter melted and solidified to produce the metallic article. The melted-and-solidified metal may be used in the as-cast form, or it may be converted to billet and further worked to the final form.
대표청구항▼
What is claimed is: 1. A method for producing a metallic article comprising a metallic base, comprising the steps of furnishing a mixture of at least two nonmetallic precursor compounds together comprising the constituents of the metallic article, wherein the constituents comprise the metallic base
What is claimed is: 1. A method for producing a metallic article comprising a metallic base, comprising the steps of furnishing a mixture of at least two nonmetallic precursor compounds together comprising the constituents of the metallic article, wherein the constituents comprise the metallic base selected from the group consisting of nickel, cobalt, iron, iron-nickel, and iron-nickel-cobalt, and mixtures thereof, and at least one alloying element; chemically reducing the mixture of nonmetallic precursor compounds to produce an initial metallic particle, without melting the initial metallic particle; melting and solidifying the initial metallic particle to produce a cast ingot of the metallic alloy, wherein the step of melting and solidifying produces an alloy that is a nickel-base superalloy, a cobalt-base superalloy, an iron-base superalloy, an iron-nickel-base superalloy, an iron-nickel-cobalt-base superalloy, or a martensitic steel; and processing the cast ingot to produce the metallic article, wherein the metallic article is a component of a gas turbine engine, wherein the step of chemically reducing the mixture of nonmetallic precursor compounds is selected from the group consisting of chemically reducing the compound mixture by fused salt electrolysis, chemically reducing the compound mixture by vapor-phase reduction, and chemically reducing the nonmetallic precursor compound by contact with a liquid selected from the group consisting of a liquid alkali metal and a liquid alkaline earth metal. 2. The method of claim 1, wherein the step of melting and solidifying produces an alloy having a martensitic steel composition. 3. The method of claim 1, including an additional step, performed prior to the completion of the step of melting and solidifying, of producing a mixture of a metallic material and another additive constituent. 4. The method of claim 1, wherein the step of chemically reducing includes the step of chemically reducing the compound mixture by fused salt electrolysis. 5. The method of claim 1, wherein the step of chemically reducing includes the step of chemically reducing the compound mixture by vapor-phase reduction. 6. The method of claim 1, wherein the step of chemically reducing includes the step of chemically reducing the nonmetallic precursor compound by contact with a liquid selected from the group consisting of a liquid alkali metal and a liquid alkaline earth metal. 7. The method of claim 1, wherein the step of chemically reducing includes the step of mixing a nonmetallic modifying element into the nonmetallic precursor compound, wherein the nonmetallic modifying element is selected from the group consisting of nitrogen and carbon. 8. The method of claim 1, wherein the step of chemically reducing includes the step of chemically reducing the nonmetallic precursor compound in a time of less than about 10 seconds. 9. The method of claim 1, wherein the step of melting and solidifying includes the step of melting and solidifying the initial metallic particle to produce the metallic article, without any addition of a metallic alloying element to the initial metallic particle. 10. The method of claim 1, wherein the step of melting and solidifying includes the step of adding a metallic alloying element to the initial metallic particle while the initial metallic particle is melted. 11. The method of claim 1, wherein the step of melting and solidifying includes the step of solidifying the metallic article as a cast article. 12. The method of claim 1, wherein the step of melting and solidifying includes the step of melting and solidifying the initial metallic particle without contacting a ceramic material. 13. The method of claim 1, wherein the step of melting and solidifying includes the step of adding an alloying element. 14. The method of claim 11, wherein the cast article is a cast ingot, and wherein the method includes an additional step, after the step of melting and solidifying, of converting the cast ingot into a billet. 15. The method of claim 1, including an additional step, after the step of melting and solidifying, of mechanically working the metallic article. 16. The method of claim 1, wherein the step of processing includes the step of post processing the metallic article. 17. The method of claim 1, including an additional step, after the step of melting and solidifying, of heat treating the metallic article. 18. The method of claim 1, wherein the metallic article is a superalloy composition, and wherein the method includes an additional step, after the step of melting and solidifying, of solution heat treating and ageing the metallic article. 19. The method of claim 1, wherein the metallic article is a martensitic steel composition, and wherein the method includes an additional step, after the step of melting and solidifying, of heat treating the metallic article to form a martensitic microstructure, wherein the step of heating treating includes the steps of heating the metallic article above a required temperature, and cooling the metallic article.
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이 특허에 인용된 특허 (19)
Kipphut, Christine M.; Pepe, Joseph J.; Schwant, Robin C., Embrittlement resistant stainless steel alloy.
Hurd ; deceased Frank W. (977 NW. Ironwood late of Corvallis OR 97330) Hurd ; executor by Susan M. (977 NW. Ironwood Corvallis OR 97330) Hurd ; executor by Harland C. (1639 Jefferson Eugene OR 97402), Metal or alloy forming reduction process and apparatus.
Cochran, Jr., Joe Kennedy; Lee, Kon Juin; Sanders, Jr., Thomas H., Metallic articles formed by reduction of nonmetallic articles and method of producing metallic articles.
Shamblen, Clifford Earl; Woodfield, Andrew Philip; Ott, Eric Allen; Gigliotti, Michael Francis Xavier, Method for preparing metallic superalloy articles having thermophysically melt incompatible alloying elements, without melting.
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Woodfield, Andrew Philip; Shamblen, Clifford Earl; Ott, Eric Allen, Producing metallic articles by reduction of nonmetallic precursor compounds and melting.
Bienvenu Grard-Pierre (Sevraz FRX) Chaleat Bernard (Norcier FRX) Dubruque Dominique (Bonne FRX) Girardot Jean-Claude (Ville La Grand FRX) Vaxelaire Philippe (Ville La Grand FRX), Production of metal powders by reduction of metal salts in fused bath.
Soled Stuart L. (Madison NJ) Wold Aaron (Providence RI) Kershaw Robert (Providence RI), Reduction process for forming powdered alloys from mixed metal iron oxides.
Barnes, Christopher A.; Kokos, George B.; Barlow, James O.; Beckerdite, Jason R., Alloy for seal ring, seal ring, and method of making seal ring for seal assembly of machine.
Woodfield, Andrew Philip; Ott, Eric Allen; Shamblen, Clifford Earl; Gigliotti, Michael Francis Xavier, Method for preparing a metallic article having an other additive constituent, without any melting.
Woodfield, Andrew Philip; Shamblen, Clifford Earl; Ott, Eric Allen, Producing metallic articles by reduction of nonmetallic precursor compounds and melting.
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