CN102383024A - Nickel-iron-base alloy and process of forming a nickel-iron-base alloy - Google Patents
Nickel-iron-base alloy and process of forming a nickel-iron-base alloy Download PDFInfo
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- CN102383024A CN102383024A CN2011102702024A CN201110270202A CN102383024A CN 102383024 A CN102383024 A CN 102383024A CN 2011102702024 A CN2011102702024 A CN 2011102702024A CN 201110270202 A CN201110270202 A CN 201110270202A CN 102383024 A CN102383024 A CN 102383024A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
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Abstract
A nickel-iron-base alloy has by weight about 0.06% to about 0.09% C, about 35% to about 37% Fe, about 12.0% to about 16.5% Cr, about 1.0% to about 2.0% Al, about 1.0% to about 3.0% Ti, about 1.5% to about 3.0% W, up to about 5.0% Mo, up to about 0.75% Nb, up to about 0.2% Mn, up to about 0.1% Si, up to about 0.006% B, and balance essentially Ni. A method for making the nickel-iron-base alloy is also disclosed.
Description
Invention field
The present invention relates to alloy, comprise the article of alloy and form the method for alloy.More particularly, the present invention relates to ni-fe-based alloy and the method that forms ni-fe-based alloy.
Background of invention
Working temperature in the gas turbine engine is at calorifics and chemically all be unfriendly (hostile).Through developing iron, nickel and cobalt-based super-alloy and using the environment coating that can prevent superalloy oxidation, thermal etching etc., realized the marked improvement of high temperature capabilities, but coat system continues to obtain exploitation to improve material property.
In the compressor section of gas turbine engine, atmospheric air is compressed to 10-25 times of normal atmosphere, and thermal insulation is heated to 800 ° of-1250 ° of F (427 ℃-677 ℃) in said process.Should be through heating and air compressed importing combustion chamber, it and fuel mix there.Fire fuel, and combustion processes extremely surpasses gas heating the very high-temperature of 3000 ° of F (1650 ℃).These hot gas are through turbo, and the water screw that wherein is fixed in the revolving wormgear dish extracts energy to drive fan and the compressor and the exhaust system of mover, and wherein gas provides enough thrust to promote aircraft.In order to improve efficiency of engine, temperature of combustion has raise.Certainly, along with temperature of combustion is raised, something must be done to the thermal destruction of the material of the flowing-path that prevents to form these hot combustion gas.
Demand to the enhanced performance continues to increase.The mover that this need upgrade for the demand of enhanced performance and to proving the improvement of design.Specifically, higher thrust is in the middle of the performance requirement with better fuel economy.In order to improve motor performance, temperature of combustion is risen to very high-temperature.This can bring higher thrust and/or better fuel economy.
Stator component (nozzle and cover) is the hot gas circuit unit of gas turbine.The expectation stator component has scale resistance, heat resistanceheat resistant-mechanical fatigue ability and high temperature and creep resistance intensity.Traditionally, stator component is processed by Ni base or Co base cast superalloys.These superalloys have them can have very expensive shortcoming.
The trial of known use differing materials is not succeeded as yet.For example; (for example the austenite that forms aluminum oxide (Alumina-Forming Austenitic, AFA) alloy) by Oak Ridge National Laboratory exploitation comprises the element of nanometer deposition and formation oxide compound and shows outstanding thermotolerance advanced stainless steel.Yet these advanced stainless steels have the low creep strength of not expecting for nozzle.Especially, the creep strength of these advanced stainless steels only reaches only about half of that the gas turbine designs of nozzles requires.
Another organizes equivalent material cheaply---and ferronickel base superalloy (comprises A286,
and IN706) has been considered to have several shortcomings." INCOLOY " is Inco Alloys International, Inc., Huntington, the federally registered trademark of the alloy that West Virginia produces.For example
has been considered to lack the basic phase of γ (causing low strength), comprised η, σ and the Laves phases (long-term mechanical properties that causes low ductility and/or difference) of significant quantity and had wide solidification range and difference castibility.
This area expectation does not have the formation method of the ni-fe-based alloy and the ni-fe-based alloy of above shortcoming.
Summary of the invention
According to an exemplary of the present disclosure, ni-fe-based alloy has the about 0.09%C of about by weight 0.06%-, the about 37%Fe of about 35%-, the about 16.5%Cr of about 12.0%-, the about 2.0%Al of about 1.0%-, the about 3.0%Ti of about 1.0%-, the about 3.0%W of about 1.5%-, the highest about 5.0%Mo, the highest about 0.75%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and is the surplus of Ni basically.
According to another exemplary of the present disclosure, ni-fe-based alloy has less than the solidification range of about 110 ° of F, greater than the basic solvus of the γ of about 1700 ° of F, is substantially free of the η phase, has Laves phases, the σ phase less than about 5% less than about 5% and does not have Co.
According to another exemplary of the present disclosure, the method that forms modified alloy comprises provides the base alloy compsn, identify multiple pre-determined characteristics and modification base alloy compsn have multiple pre-determined characteristics with formation modified alloy compsn.Said multiple pre-determined characteristics comprises the solidification range that has less than about 110 ° of F, have greater than the basic solvus of the γ of about 1700 ° of F, do not contain the η phase basically, have less than about 5% Laves phases with have mutually less than about 5% σ.The base alloy compsn comprises one or more of first compsn and second compsn, and said first compsn contains the 0.05%C that has an appointment, about 36%Fe, about 12.50%Cr, about 0.20%Al, about 2.80%Ti, the highest about 0.12%W, about 5.70%Mo, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B, is the surplus of Ni basically; Said second compsn comprises about 0.02%C, about 37%Fe, 16.00%Cr, about 0.20%Al, about 1.75%Ti, the highest about 0.12%W, the highest about 0.12%Mo, about 2.90%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B, is the surplus of Ni basically.
An advantage of disclosure embodiment comprises the basic modified alloy that has the strength of expectation mutually with the η that reduces or eliminates mutually through the γ that forms q.s.
Another advantage of disclosure embodiment comprises the ductility with expectation and/or the modified alloy of long-term mechanical properties.
Another advantage of disclosure embodiment comprises the modified alloy of the castibility with expectation.
Further feature of the present invention and advantage will be from the descriptions of following more detailed preferred embodiment and obvious.
Detailed Description Of The Invention
The present invention provides ni-fe-based alloy with multiple pre-determined characteristics and the method that forms the ni-fe-based alloy with multiple pre-determined characteristics.
Embodiment of the present disclosure relates to the ni-fe-based alloy that forms from one or more low-cost alloys that before were considered to be not suitable for hot gas circuit unit (for example engine turbine stator).Said ni-fe-based alloy does not comprise the η phase, brings the creep strength of expectation.Said ni-fe-based alloy has the ductility and/or the long-term mechanical properties of expectation.And said ni-fe-based alloy has the castibility of expectation.
Said ni-fe-based alloy can form through any suitable method.In one embodiment, said ni-fe-based alloy has about 1000 hours creep rupture life-span at about 1400 ° of F with at about 25ksi to about 30ksi load.In one embodiment, said ni-fe-based alloy antioxidant is 48000 hours.In one embodiment, the low cycle fatigue of said modified alloy is same with the FSX414 alloy phase basically.
In one embodiment, said method comprises provides base alloy.Said base alloy was for before being considered to be not suitable for one or more alloys of hot gas circuit unit.For example, in one embodiment, said base alloy is a base alloy 1." base alloy 1 " that this paper uses refers to consist of about 0.05%C, about 0.20%Al, about 2.80%Ti, about 12.50%Cr, about 5.70%Mo, about 36%Fe and other suitable element (in the whole disclosure; All percentage ratios by weight, alloy except as otherwise noted).In one embodiment, base alloy 1 further comprises the highest about 0.12%W, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006B and is the surplus of Ni basically.In another embodiment, base alloy 1 does not comprise Co.
In another embodiment, said base alloy is a base alloy 2." base alloy 2 " that this paper uses refers to consist of the alloy of about 16.00%Cr, about 37%Fe, about 2.90%Nb, about 1.75%Ti, about 0.20%Al, about 0.02%C and other suitable element.In one embodiment, base alloy 2 further comprises the highest about 0.12%W, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006B and is the surplus of Ni basically.In another embodiment, base alloy 2 does not comprise Co.
Said method continues to identify the multiple pre-determined characteristics to the modified alloy expectation.Data corresponding to said multiple pre-determined characteristics can be analyzed through the program (for example computer craze mechanical simulation program) that computingmachine is carried out.The program that computingmachine is carried out is will be about the data of base alloy interrelated and produce the output corresponding to the performance of modified alloy.The modification that is output as based on to the composition of the base alloy that forms modified alloy that produces.Analyze the output produced and make it possible to identify that one or more remain the compsn further analyzed.
Said performance comprises any suitable measurable performance.Said performance comprises solidification range, the basic solvus of γ, lacks the η phase, Laves phases percentage ratio, σ phase percentage ratio, Laves phases formation temperature, other suitable performance or their any combination.In one embodiment, solidification range is brought good castibility less than about 110 ° of F.In one embodiment, the basic solvus of γ is greater than about 1700 ° of F.In one embodiment, lack η and comprise there is not the η phase mutually.In one embodiment, Lay Vickers σ percentage ratio is less than about 5%.In one embodiment, formation temperature is less than about 1200 ° of F.
About the data of base alloy and corresponding to the output of the performance of ni-fe-based alloy interrelated comprise to the composition of base alloy revise and affected performance between any appropriate relation.For example, Al reduces the η phase.Comprise greater than the concentration of about 1%Al and eliminate the η phase.Therefore, the interrelated generation of data is illustrated in Al concentration above about output that did not have the η phase at 1% o'clock.Other can be mutually related concerns to be that increase Mo concentration increase η phase, increase W concentration reduce the η phase, increase Al concentration reduces solidification range and their combination.Also can adopt the interrelated of combination.For example, when Al is about 0.8% the time, increases W concentration and increase and solidify.Yet,, increase W concentration and reduce to solidify when Al is about 1.5% the time.Therefore, Al concentration and W concentration can opening relationships in interrelated.
Interrelatedly can further comprise other experimental data, said data are based on the analysis of the parts that form with ni-fe-based alloy and comparison to the pre-determined characteristics of the different compositions of ni-fe-based alloy.For example, said data can comprise particular chemical (specific chemistry), amplify any combination of heat, long-term microtexture stability study, long oxidation test, test (for example 5000 hours tests) and other mechanicl test in proportion.
Based on interrelated, (manual or automatic) selected the base alloy that is adopted and makes the modification ni-fe-based alloy that forms parts.Parts can form through any suitable technique (for example cast, forging, thermal treatment, repair welding or their any suitable combination).
In one embodiment, ni-fe-based alloy comprises following compositing range: the about 0.09%C of about 0.07%-, the about 37%Fe of about 35%-, the about 16.5%Cr of about 12.0%-, the about 2.0%Al of about 1.0%-, the about 3.0%Ti of about 2.0%-, the about 3.0%W of about 2.0%-, the about 5.0%Mo of about 3.0%-, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy comprises following compositing range: the about 0.09%C of about 0.07%-, the about 37%Fe of about 35%-, the about 13.0%Cr of about 12.0%-, the about 1.65%Al of about 1.35%-, the about 2.75%Ti of about 2.25%-, the about 2.7%W of about 2.3%-, the about 3.6%Mo of about 3.4%-, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy does not have Co.
In another embodiment, ni-fe-based alloy comprises following compositing range: the about 0.09%C of about 0.07%-, the about 37%Fe of about 35%-, the about 16.5%Cr of about 12.0%-, the about 2.0%Al of about 1.0%-, the about 3.0%Ti of about 2.0%-, the about 2.5%W of about 1.5%-, the about 5.0%Mo of about 3.0%-, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy comprises following compositing range: the about 0.09%C of about 0.07%-, the about 37%Fe of about 35%-, the about 14.5%Cr of about 13.5%-, the about 1.65%Al of about 1.35%-, the about 2.75%Ti of about 2.25%-, the about 2.2%W of about 1.8%-, the about 4.1%Mo of about 3.9%-, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy does not have Co.
In one embodiment, ni-fe-based alloy comprises following compositing range: the about 0.09%C of about 0.07%-, the about 37%Fe of about 35%-, the about 16.5%Cr of about 12.0%-, the about 2.0%Al of about 1.0%-, the about 3.0%Ti of about 2.0%-, the about 2.5%W of about 1.5%-, the about 1.5%Mo of about 0.5%-, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy comprises following compositing range: the about 0.09%C of about 0.07%-, the about 37%Fe of about 35%-, the about 16.5%Cr of about 15.5%-, the about 1.65%Al of about 1.35%-, the about 2.75%Ti of about 2.25%-, the about 2.2%W of about 1.8%-, the about 1.1%Mo of about 0.9%-, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy does not have Co.
In one embodiment, ni-fe-based alloy comprises following compositing range: the about 0.08%C of about 0.06%-, the about 37%Fe of about 35%-, the about 16.5%Cr of about 12.0%-, the about 2.0%Al of about 1.0%-, the about 2.5%Ti of about 1.0%-, the about 2.5%W of about 1.5%-, the highest about 0.25%Mo, the about 0.75%Nb of about 0.25%-, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy comprises following compositing range: the about 0.08%C of about 0.06%-, the about 37%Fe of about 35%-, the about 16.5%Cr of about 15.5%-, the about 1.65%Al of about 1.35%-, the about 1.8%Ti of about 1.5%-, the about 2.2%W of about 1.8%-, the highest about 0.12%Mo, the about 0.6%Nb of about 0.4%-, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy does not have Co.
In one embodiment, originally ni-fe-based alloy can have the composition based on the compsn of base alloy 1.In one embodiment, ni-fe-based alloy comprises following composition: about 0.08%C, about 36%Fe, about 12.5%Cr, about 1.50%Al, about 2.50%Ti, about 2.50%W, about 3.50%Mo, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy comprises following composition: about 0.08%C, about 36%Fe, about 14.0%Cr, about 1.50%Al, about 2.50%Ti, about 2.50%W, about 4.00%Mo, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.In another embodiment, ni-fe-based alloy comprises following composition: about 0.08%C, about 36%Fe, about 16.0%Cr, about 1.50%Al, about 2.50%Ti, about 2.50%W, about 1.00%Mo, the highest about 0.1%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.
In one embodiment, originally ni-fe-based alloy can have the composition based on the compsn of base alloy 2.In one embodiment, ni-fe-based alloy comprises following composition: about 0.07%C, about 37%Fe, about 16.0%Cr, about 1.50%Al, about 1.75%Ti, about 2.00%W, the highest about 0.12%Mo, about 0.50%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and be the surplus of Ni basically.
In one embodiment, said alloy composite is used for hot gas turbine engine component.For example, said alloy can be used for stator component, includes, but is not limited to nozzle, cover, other suitable part or their combination.
Although the present invention obtains describing with reference to preferred embodiment, those skilled in the art should understand that and to carry out various variations and alternative its element of Equivalent and do not depart from the scope of the present invention.In addition, can make many modifications so that particular case or material are adapted to instruction of the present invention and do not break away from its essential scope.Therefore, be intended to make the present invention to be not limited to the disclosed particular of imagining as embodiment of the present invention of preferred forms, but the present invention includes all embodiments that fall in the claim scope.
Claims (10)
1. ni-fe-based alloy, said alloy comprises the about 0.09%C of about by weight 0.06%-, the about 37%Fe of about 35%-, the about 16.5%Cr of about 12.0%-, the about 2.0%Al of about 1.0%-, the about 3.0%Ti of about 1.0%-, the about 3.0%W of about 1.5%-, the highest about 5.0%Mo, the highest about 0.75%Nb, the highest about 0.2%Mn, the highest about 0.1%Si, the highest about 0.006%B and is the surplus of Ni basically.
2. the alloy of claim 1, said alloy comprises the about 0.09%C of about 0.07%-, the about 3.0%Ti of about 2.0%-, the about 3.0%W of about 2.0%-, the about 5.0%Mo of about 3.0%-and the highest about 0.1%Nb.
3. the alloy of claim 1, said alloy comprises the about 0.09%C of about 0.07%-, the about 3.0%Ti of about 2.0%-, the about 2.5%W of about 1.5%-, the about 5.0%Mo of about 3.0%-and the highest about 0.1%Nb.
4. the alloy of claim 1, said alloy comprises the about 0.09%C of about 0.07%-, the about 3.0%Ti of about 2.0%-, the about 2.5%W of about 1.5%-, the about 1.5%Mo of about 0.5-and the highest about 0.1%Nb.
5. the alloy of claim 1, said alloy comprises the about 0.08%C of about 0.06%-, the about 2.5%Ti of about 1.0%-, the about 2.5%W of about 1.5%-, the highest about 0.25%Mo and the about 0.75%Nb of 0.25%-.
6. the alloy of claim 1, said alloy comprises the about 0.09%C of about 0.07%-, the about 13.0%Cr of about 12.0%-, the about 1.65%Al of about 1.35%-, the about 2.75%Ti of about 2.25%-, the about 2.7%W of about 2.3%-, the about 3.6%Mo of about 3.4%-, the highest about 0.1%Nb.
7. the alloy of claim 1, said alloy comprises the about 0.09%C of about 0.07%-, the about 14.5%Cr of about 13.5%-, the about 1.65%Al of about 1.35%-, the about 2.75%Ti of about 2.25%-, the about 2.2%W of about 1.8%-, the about 4.1%Mo of about 3.9%-, the highest about 0.1%Nb.
8. the alloy of claim 1, said alloy comprises the about 0.09%C of about 0.07%-, the about 16.5%Cr of about 15.5%-, the about 1.65%Al of about 1.35%-, the about 2.75%Ti of about 2.25%-, the about 2.2%W of about 1.8%-, the about 1.1%Mo of about 0.9%-, the highest about 0.1%Nb.
9. the alloy of claim 1, said alloy comprises the about 0.08%C of about 0.06%-, the about 16.5%Cr of about 15.5%-, the about 1.65%Al of about 1.35%-, the about 1.8%Ti of about 1.5%-, the about 2.2%W of about 1.8%-, the highest about 0.12%Mo, the about 0.6%Nb of about 0.4%-.
10. the alloy of claim 1, wherein said alloy has less than the solidification range of about 110 ° of F, greater than the basic solvus of the γ of about 1700 ° of F, is substantially free of the η phase, have less than about 5% Laves phases with less than about 5% σ mutually.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/870873 | 2010-08-30 | ||
| US12/870,873 US20120051963A1 (en) | 2010-08-30 | 2010-08-30 | Nickel-iron-base alloy and process of forming a nickel-iron-base alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102383024A true CN102383024A (en) | 2012-03-21 |
| CN102383024B CN102383024B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110270202.4A Expired - Fee Related CN102383024B (en) | 2010-08-30 | 2011-08-30 | A kind of method of ni-fe-based alloy and formation ni-fe-based alloy |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20120051963A1 (en) |
| EP (1) | EP2465959A1 (en) |
| JP (1) | JP5791998B2 (en) |
| KR (1) | KR20120021214A (en) |
| CN (1) | CN102383024B (en) |
| RU (1) | RU2011135629A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130126056A1 (en) * | 2011-11-18 | 2013-05-23 | General Electric Company | Cast nickel-iron-base alloy component and process of forming a cast nickel-iron-base alloy component |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1232758B (en) * | 1962-09-14 | 1967-01-19 | Crucible Steel Co America | Heat-resistant iron-nickel alloy |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0776721A (en) * | 1993-09-10 | 1995-03-20 | Nidatsuku Kk | Heat treatment of heat resisting cast alloy |
| JP3907359B2 (en) * | 1999-11-08 | 2007-04-18 | 日本パーカライジング株式会社 | Wire for engine valve |
| JP3951943B2 (en) * | 2003-03-18 | 2007-08-01 | 本田技研工業株式会社 | High-strength heat-resistant alloy for exhaust valves with excellent anti-aging characteristics |
| US7763129B2 (en) * | 2006-04-18 | 2010-07-27 | General Electric Company | Method of controlling final grain size in supersolvus heat treated nickel-base superalloys and articles formed thereby |
| FR2910912B1 (en) * | 2006-12-29 | 2009-02-13 | Areva Np Sas | METHOD FOR THE HEAT TREATMENT OF ENVIRONMENTALLY ASSISTED CRACKING DISENSIBILIZATION OF A NICKEL-BASED ALLOY AND PART PRODUCED THEREBY THUS PROCESSED |
-
2010
- 2010-08-30 US US12/870,873 patent/US20120051963A1/en not_active Abandoned
-
2011
- 2011-08-17 EP EP11177831A patent/EP2465959A1/en not_active Withdrawn
- 2011-08-25 KR KR1020110085087A patent/KR20120021214A/en not_active Application Discontinuation
- 2011-08-26 JP JP2011184201A patent/JP5791998B2/en not_active Expired - Fee Related
- 2011-08-29 RU RU2011135629/02A patent/RU2011135629A/en not_active Application Discontinuation
- 2011-08-30 CN CN201110270202.4A patent/CN102383024B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1232758B (en) * | 1962-09-14 | 1967-01-19 | Crucible Steel Co America | Heat-resistant iron-nickel alloy |
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| Publication number | Publication date |
|---|---|
| US20120051963A1 (en) | 2012-03-01 |
| JP5791998B2 (en) | 2015-10-07 |
| JP2012046823A (en) | 2012-03-08 |
| KR20120021214A (en) | 2012-03-08 |
| EP2465959A1 (en) | 2012-06-20 |
| RU2011135629A (en) | 2013-03-10 |
| CN102383024B (en) | 2016-01-20 |
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