US20100263821A1 - Super-alloy and stainless steel casting method - Google Patents
Super-alloy and stainless steel casting method Download PDFInfo
- Publication number
- US20100263821A1 US20100263821A1 US12/424,789 US42478909A US2010263821A1 US 20100263821 A1 US20100263821 A1 US 20100263821A1 US 42478909 A US42478909 A US 42478909A US 2010263821 A1 US2010263821 A1 US 2010263821A1
- Authority
- US
- United States
- Prior art keywords
- alloy
- stainless steel
- component
- mold
- super
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 19
- 229910001220 stainless steel Inorganic materials 0.000 title claims description 10
- 239000010935 stainless steel Substances 0.000 title claims description 9
- 229910001067 superalloy steel Inorganic materials 0.000 title abstract description 3
- 238000005266 casting Methods 0.000 title description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 229910000601 superalloy Inorganic materials 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 9
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 4
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 3
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims description 3
- 239000012720 thermal barrier coating Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 2
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 2
- 239000000788 chromium alloy Substances 0.000 claims description 2
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 claims description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 6
- 229910001039 duplex stainless steel Inorganic materials 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 15
- 239000000956 alloy Substances 0.000 abstract description 15
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 229910001293 incoloy Inorganic materials 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
Definitions
- the invention relates to methods for preparing super-alloy and stainless steel components that have improved mechanical and corrosive properties.
- Metals can oxidize, corrode, and become brittle if they are exposed to relatively high temperatures (i.e., greater than or equal to about 700° C.) and especially if they are present in oxidative environments. Environments, such as those with high temperatures and corrosive atmospheres, can be produced in gas turbines, such as gas turbines used for power generation applications. It would be beneficial to be able to manufacture metal components that last longer in high-temperature, oxidative environments.
- Embodiments of the invention include a method for producing a component that includes melting a stainless steel alloy and transferring the melted stainless steel alloy to a mold.
- the mold is mechanically vibrated while the melted stainless steel solidifies.
- the component is then removed from the mold.
- Embodiments of the present invention also include a method for producing a component that includes melting a super-alloy and transferring the melted super-alloy to a mold.
- the mold is mechanically vibrated while the melted super-alloy solidifies.
- the component is then removed from the mold.
- FIG. 1 shows a block diagram of an illustrative method infrastructure for implementing one embodiment of the invention.
- a casting of molten material in a mold is performed while mechanical vibration of the mold occurs.
- the mold is mechanically vibrated and the vibration continues until the molten material solidifies.
- the resulting component has improved mechanical properties and is more resistant to corrosion.
- the mechanically vibration has a frequency range of from 8 to 60 Hz.
- the metal component can be any one of, for example, combustion liners or transition pieces, buckets, nozzles, blades, vanes, shrouds, as well as other components, for example, components that will be disposed in a hot gas stream in a turbine engine.
- the metal component can include stainless steel and super-alloys.
- a super-alloy, or high-performance alloy is an alloy that exhibits excellent mechanical strength and creep resistance at high temperatures, good surface stability, and corrosion and oxidation resistance.
- a super-alloy's base alloying element is usually nickel or nickel-iron. Included in super-alloys are nickel-chromium-iron alloys such as INCONEL® (Special Metals Corporation) alloys; nickel-iron-chromium alloys such as INCOLOY® (Special Metals Corporation) alloys; nickel-iron alloys; and nickel-chromium molybdenum alloys such as HASTELLOY® (Haynes International) alloys.
- a wide variety of iron-based stainless steel alloys are useful in embodiments of the present invention. Martensitic stainless steel alloy whose chemistry and processing achieve an excellent combination of strength and toughness is suitable for use in embodiments of the present invention and is described in U.S. Pat. No. 6,743,305. Such a steel alloy is characterized by a hardening phase of copper-rich precipitates, which in combination with certain chemistry and processing requirements yields the desired strength and toughness properties for the alloy.
- Duplex stainless steels are characterized by high strength and resistance to stress cracking and generally have less nickel than martenistic stainless steel. Another useful stainless steel in an embodiment of the invention is austenitic stainless steel.
- Possible constituents of the stainless steel alloys used in embodiments of this invention include chromium, nickel, copper, molybdenum, manganese, silicon, copper, carbon and niobium.
- chromium provides the stainless properties for the alloy, and for this reason a minimum chromium content of 14 weight percent is required for the alloy.
- High alloy steels such as but not limited to Fe-12Cr stainless steels (hereinafter Fe-12Cr steels), are known in the art.
- the high alloy steels possess desirable characteristics for use in various engineering articles.
- these engineering articles may be employed in use at high temperatures, and may be subjected to thermal aging.
- coatings include thermal barrier coatings or erosion resistant coatings.
- FIG. 1 shows a simplified flow diagram of an embodiment of the invention.
- Stainless steel alloy and super-alloys, discussed above, are melted at a temperature above their melting point. This is shown as 10 in FIG. 1 .
- the melted alloys are then transferred to a net shape or near net-shape mold as shown by 11 .
- This step or any step described can be done in an inert atmosphere.
- the mold is mechanically vibrated.
- the mechanically vibration is preferably in a frequency range of from 8 to 60 Hz.
- the greater the mechanical vibration the greater the solidification rate of the alloy in the mold. This is shown as 12 in FIG. 1 . Greater mechanical vibration is believed to increase the forced convection rate in the melt.
- first,” “second,” and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, and the terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.
- the modifier “about” used in connection with a quantity is inclusive of the stated value and has the meaning dictated by the context, (e.g., includes the degree of error associated with measurement of the particular quantity).
- the suffix “(s)” as used herein is intended to include both the singular and the plural of the term that it modifies, thereby including one or more of that term (e.g., the metal(s) includes one or more metals).
- Ranges disclosed herein are inclusive and independently combinable (e.g., ranges of “up to about 25 wt %, or, more specifically, about 5 wt % to about 20 wt %”, is inclusive of the endpoints and all intermediate values of the ranges of “about 5 wt % to about 25 wt %,” etc).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Embodiments of the present invention include a method for producing a component that includes melting a super-alloy or stainless steel alloy and transferring the melted alloy to a mold. The mold is mechanically vibrated while the melted alloy solidifies. The component then is removed from the mold.
Description
- The invention relates to methods for preparing super-alloy and stainless steel components that have improved mechanical and corrosive properties.
- Metals can oxidize, corrode, and become brittle if they are exposed to relatively high temperatures (i.e., greater than or equal to about 700° C.) and especially if they are present in oxidative environments. Environments, such as those with high temperatures and corrosive atmospheres, can be produced in gas turbines, such as gas turbines used for power generation applications. It would be beneficial to be able to manufacture metal components that last longer in high-temperature, oxidative environments.
- Embodiments of the invention include a method for producing a component that includes melting a stainless steel alloy and transferring the melted stainless steel alloy to a mold. The mold is mechanically vibrated while the melted stainless steel solidifies. The component is then removed from the mold.
- Embodiments of the present invention also include a method for producing a component that includes melting a super-alloy and transferring the melted super-alloy to a mold. The mold is mechanically vibrated while the melted super-alloy solidifies. The component is then removed from the mold.
- The above described and other features are exemplified by the following detailed description.
- These and other features of this invention will be more readily understood from the following detailed description of the various aspects of the invention taken in conjunction with the accompanying drawings that depict various embodiments of the invention, in which:
-
FIG. 1 shows a block diagram of an illustrative method infrastructure for implementing one embodiment of the invention. - In embodiments of the present invention, a casting of molten material in a mold is performed while mechanical vibration of the mold occurs. The mold is mechanically vibrated and the vibration continues until the molten material solidifies. The resulting component has improved mechanical properties and is more resistant to corrosion. The mechanically vibration has a frequency range of from 8 to 60 Hz.
- The metal component can be any one of, for example, combustion liners or transition pieces, buckets, nozzles, blades, vanes, shrouds, as well as other components, for example, components that will be disposed in a hot gas stream in a turbine engine. The metal component can include stainless steel and super-alloys.
- A super-alloy, or high-performance alloy, is an alloy that exhibits excellent mechanical strength and creep resistance at high temperatures, good surface stability, and corrosion and oxidation resistance. A super-alloy's base alloying element is usually nickel or nickel-iron. Included in super-alloys are nickel-chromium-iron alloys such as INCONEL® (Special Metals Corporation) alloys; nickel-iron-chromium alloys such as INCOLOY® (Special Metals Corporation) alloys; nickel-iron alloys; and nickel-chromium molybdenum alloys such as HASTELLOY® (Haynes International) alloys.
- A wide variety of iron-based stainless steel alloys are useful in embodiments of the present invention. Martensitic stainless steel alloy whose chemistry and processing achieve an excellent combination of strength and toughness is suitable for use in embodiments of the present invention and is described in U.S. Pat. No. 6,743,305. Such a steel alloy is characterized by a hardening phase of copper-rich precipitates, which in combination with certain chemistry and processing requirements yields the desired strength and toughness properties for the alloy. Duplex stainless steels are characterized by high strength and resistance to stress cracking and generally have less nickel than martenistic stainless steel. Another useful stainless steel in an embodiment of the invention is austenitic stainless steel.
- Possible constituents of the stainless steel alloys used in embodiments of this invention include chromium, nickel, copper, molybdenum, manganese, silicon, copper, carbon and niobium.
- As known in the art, chromium provides the stainless properties for the alloy, and for this reason a minimum chromium content of 14 weight percent is required for the alloy.
- High alloy steels, such as but not limited to Fe-12Cr stainless steels (hereinafter Fe-12Cr steels), are known in the art. The high alloy steels possess desirable characteristics for use in various engineering articles. For example, these engineering articles may be employed in use at high temperatures, and may be subjected to thermal aging.
- The process description herein is merely exemplary in purpose, and is not intended to limit the application in any manner. Such a process allows for the convenient preparation of articles having intricate and large geometries, such as turbine components.
- It is possible in embodiments of the invention to dispose additional layers or coatings on the component parts. These coatings include thermal barrier coatings or erosion resistant coatings.
-
FIG. 1 shows a simplified flow diagram of an embodiment of the invention. Stainless steel alloy and super-alloys, discussed above, are melted at a temperature above their melting point. This is shown as 10 inFIG. 1 . The melted alloys are then transferred to a net shape or near net-shape mold as shown by 11. This step or any step described can be done in an inert atmosphere. The mold is mechanically vibrated. The mechanically vibration is preferably in a frequency range of from 8 to 60 Hz. The greater the mechanical vibration, the greater the solidification rate of the alloy in the mold. This is shown as 12 inFIG. 1 . Greater mechanical vibration is believed to increase the forced convection rate in the melt. Greater mechanical vibration lowers the temperature differential between the center and edges of the melt in the mold allowing more uniform solidification. Finer grain structure occurs with increased mechanical vibration. Finer grain structure results in improved mechanical properties of the molded part as there is reduced strain at the grain boundaries. When the alloy has solidified it is removed from the mold, shown as 13 inFIG. 1 . - The terms “first,” “second,” and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, and the terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. The modifier “about” used in connection with a quantity is inclusive of the stated value and has the meaning dictated by the context, (e.g., includes the degree of error associated with measurement of the particular quantity). The suffix “(s)” as used herein is intended to include both the singular and the plural of the term that it modifies, thereby including one or more of that term (e.g., the metal(s) includes one or more metals). Ranges disclosed herein are inclusive and independently combinable (e.g., ranges of “up to about 25 wt %, or, more specifically, about 5 wt % to about 20 wt %”, is inclusive of the endpoints and all intermediate values of the ranges of “about 5 wt % to about 25 wt %,” etc).
- While various embodiments are described herein, it will be appreciated from the specification that various combinations of elements, variations or improvements therein may be made by those skilled in the art, and are within the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (16)
1. A method for producing a component comprising:
melting a stainless steel alloy;
transferring the melted stainless steel alloy to a mold;
mechanically vibrating the mold while the melted stainless steel solidifies to form a component; and
removing the component from the mold.
2. The method of claim 1 , wherein the stainless steel alloy is selected from the group consisting of martensitic stainless steel, duplex stainless steel, and austenitic stainless steel.
3. The method according to claim 1 , wherein the melting of the stainless steel alloy occurs in an inert atmosphere.
4. The method according to claim 1 , wherein the transferring of the melted stainless steel occurs in an inert atmosphere.
5. The method according to claim 1 , further comprising applying a coating to the component.
6. The method according to claim 5 , wherein the coating comprises a thermal barrier coating or an erosion resistant coating.
7. The method according to claim 1 , wherein the vibration comprises a frequency range of from 8 to 60 Hz.
8. The method according to claim 1 , wherein the component is selected from the group consisting of a combustion liner, transition piece, buckets, nozzle, blade, vane, and shroud.
9. A method for producing a component comprising:
melting a super alloy;
transferring the melted super-alloy to a mold;
mechanically vibrating the mold while the melted stainless steel solidifies to form a component; and
removing the component from the mold.
10. The method of claim 9 , wherein the super-alloy is selected from the group consisting of nickel-chromium-iron alloys, nickel-iron-chromium alloys, nickel-iron alloys, and nickel-chromium molybdenum alloys.
11. The method according to claim 9 , wherein the melting of the super-alloy comprises an inert atmosphere.
12. The method according to claim 9 , wherein the transferring of the melted super-alloy comprises an inert atmosphere.
13. The method according to claim 9 , further comprising applying a coating to the component.
14. The method according to claim 13 , wherein the coating comprises a thermal barrier coating or an erosion resistant coating.
15. The method according to claim 9 , wherein the vibration comprises a frequency range of from 8 to 60 Hz.
16. The method according to claim 9 , wherein the component is selected from the group consisting of a combustion liner, transition piece, buckets, nozzle, blade, vane, and shroud.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/424,789 US20100263821A1 (en) | 2009-04-16 | 2009-04-16 | Super-alloy and stainless steel casting method |
| EP10158907A EP2241392A1 (en) | 2009-04-16 | 2010-04-01 | Casting Method for super-Alloy and stainless Steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/424,789 US20100263821A1 (en) | 2009-04-16 | 2009-04-16 | Super-alloy and stainless steel casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20100263821A1 true US20100263821A1 (en) | 2010-10-21 |
Family
ID=42333358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/424,789 Abandoned US20100263821A1 (en) | 2009-04-16 | 2009-04-16 | Super-alloy and stainless steel casting method |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20100263821A1 (en) |
| EP (1) | EP2241392A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016146829A1 (en) | 2015-03-18 | 2016-09-22 | Innomaq 21, Sociedad Limitada | Method of manufacturing of a casted part or ingot of a metallic alloy attaining a minimal segregation in the casting process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2660414A (en) * | 1949-12-16 | 1953-11-24 | Selas Corp Of America | Electromagnetic vibrator apparatus for treating molten metal |
| US2912729A (en) * | 1956-07-24 | 1959-11-17 | John M Webb | Refractory molds |
| US20050016706A1 (en) * | 2003-07-23 | 2005-01-27 | Ranjan Ray | Castings of metallic alloys with improved surface quality, structural integrity and mechanical properties fabricated in refractory metals and refractory metal carbides coated graphite molds under vacuum |
| US20050129972A1 (en) * | 2003-02-17 | 2005-06-16 | Japan Fine Ceramics Center And Ishikawajima-Harima Heavy Industries Co., Ltd. | Thermal barrier coating system method of manufacturing the same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB480554A (en) * | 1936-03-25 | 1938-02-24 | Deutsche Edelstahlwerke Ag | Improvements in or relating to the casting of metals and alloys |
| GB913291A (en) * | 1958-10-20 | 1962-12-19 | Mond Nickel Co Ltd | Improvements relating to the casting of metals and alloys |
| US3678988A (en) * | 1970-07-02 | 1972-07-25 | United Aircraft Corp | Incorporation of dispersoids in directionally solidified castings |
| JPH0661604B2 (en) * | 1989-03-28 | 1994-08-17 | 川崎重工業株式会社 | Method for manufacturing disc made of super heat-resistant alloy |
| US6743305B2 (en) | 2001-10-23 | 2004-06-01 | General Electric Company | High-strength high-toughness precipitation-hardened steel |
| WO2004033132A1 (en) * | 2002-10-07 | 2004-04-22 | Tecomet, Inc. | Cast collimator and method for making same |
-
2009
- 2009-04-16 US US12/424,789 patent/US20100263821A1/en not_active Abandoned
-
2010
- 2010-04-01 EP EP10158907A patent/EP2241392A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2660414A (en) * | 1949-12-16 | 1953-11-24 | Selas Corp Of America | Electromagnetic vibrator apparatus for treating molten metal |
| US2912729A (en) * | 1956-07-24 | 1959-11-17 | John M Webb | Refractory molds |
| US20050129972A1 (en) * | 2003-02-17 | 2005-06-16 | Japan Fine Ceramics Center And Ishikawajima-Harima Heavy Industries Co., Ltd. | Thermal barrier coating system method of manufacturing the same |
| US20050016706A1 (en) * | 2003-07-23 | 2005-01-27 | Ranjan Ray | Castings of metallic alloys with improved surface quality, structural integrity and mechanical properties fabricated in refractory metals and refractory metal carbides coated graphite molds under vacuum |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016146829A1 (en) | 2015-03-18 | 2016-09-22 | Innomaq 21, Sociedad Limitada | Method of manufacturing of a casted part or ingot of a metallic alloy attaining a minimal segregation in the casting process |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2241392A1 (en) | 2010-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20140126677A (en) | Cast nickel-based superalloy including iron | |
| JP5254538B2 (en) | High melting point intermetallic compound composites based on niobium silicide and related articles | |
| WO2020121367A1 (en) | Cobalt-based alloy laminate molded body, cobalt-based alloy product, and manufacturing method of these | |
| JPWO2007037277A1 (en) | Ni-base superalloy with excellent oxidation resistance | |
| JP2009120950A (en) | Forged austenitic stainless steel alloy component and method for production thereof | |
| CN101386939A (en) | Nickel-based alloys for turbine rotors of steam turbines and turbine rotors of steam turbines | |
| EP2520678B1 (en) | Nickel-base alloy | |
| EP2319948A1 (en) | Nickel-containing alloys, method of manufacture thereof and articles derived therefrom | |
| JP4994843B2 (en) | Nickel-containing alloy, method for producing the same, and article obtained therefrom | |
| JP5597598B2 (en) | Ni-base superalloy and gas turbine using it | |
| US11384414B2 (en) | Nickel-based superalloys | |
| JP7233422B2 (en) | Highly oxidation resistant alloy for gas turbine applications | |
| RU2112069C1 (en) | Nickel-base cast high-temperature alloy | |
| US5916384A (en) | Process for the preparation of nickel base superalloys by brazing a plurality of molded cavities | |
| US20100263821A1 (en) | Super-alloy and stainless steel casting method | |
| AU2019235121B2 (en) | High-performance metal alloy for additive manufacturing of machine components | |
| EP2617846A2 (en) | A cast nickel-iron-base alloy component and process of forming a cast nickel-iron-base alloy component | |
| EP4043600B1 (en) | Nickel-based superalloy | |
| JP2023155166A (en) | Compositions, articles, and methods for forming the same | |
| JP2015086432A (en) | Austenitic heat resistant steel and turbine component | |
| JP6173822B2 (en) | Austenitic heat resistant steel and turbine parts | |
| JP6173956B2 (en) | Austenitic heat resistant steel and turbine parts | |
| US20150247220A1 (en) | Article and method for forming article | |
| JP2010229503A (en) | Super heat-resistant Co-based alloy and glass fiber forming spinner using the same | |
| KR20250119623A (en) | Nickel-based superalloys, raw materials, components, and methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: GENERAL ELECTRIC COMPANY, NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAHA, DEEPAK (NMN);REEL/FRAME:022567/0351 Effective date: 20090401 |
|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |