CN103572210A - High-temperature antioxidant iridium-based nano composite coating as well as preparation method thereof - Google Patents
High-temperature antioxidant iridium-based nano composite coating as well as preparation method thereof Download PDFInfo
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- CN103572210A CN103572210A CN201210279046.2A CN201210279046A CN103572210A CN 103572210 A CN103572210 A CN 103572210A CN 201210279046 A CN201210279046 A CN 201210279046A CN 103572210 A CN103572210 A CN 103572210A
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Abstract
The invention relates to a high-temperature antioxidant coating as well as a preparation method thereof, and particularly relates to a high-temperature antioxidant iridium-based nano composite coating as well as the preparation method thereof. The high-temperature antioxidant iridium-based nano composite coating is characterized by being divided into two layers, wherein the inner layer consists of iridium and the surface layer consists of an iridium-based alloy. The iridium coating in the inner layer is 1-5 microns thick, and the iridium-based alloy coating in the surface layer is 10-20 microns thick. The alloy elements in the composite coating can be one or more than one of titanium, niobium, vanadium, hafnium, tantalum, yttrium, aluminum, tungsten, rhodium and platinum. The alloys in the composite coating exist in form of single substances and/or intermetallic compounds. In addition, the invention provides the preparation method of the high temperature antioxidant iridium-based nano composite coating. The preparation method comprises the following steps: preparing a composite coating in a double-layered structure on the surface of a base body material; firstly, preparing a nanocrystal iridium coating on the surface of the base body material; and finally preparing an iridium-based nanocrystal coating on the surface of the iridium-based coating, wherein the content of iridium is 50-95at.% and the balance is the alloy elements.
Description
Technical field
The present invention relates to a kind of high-temperature oxidation resistant coating and preparation method thereof, especially relate to a kind of high-temperature oxidation resistant iridium base nanometer crystal compound coating and preparation method thereof.
Background technology
Nickel base superalloy is a kind of important fire-resistant oxidation resistant material, is widely used in the high-temperature components such as gas turbine blades.In aircraft engine, as the engineering alloy material of being on active service under high temperature, not only to there be enough hot strengths, also will there is good high temperature oxidation resistance, depend merely on alloy itself and be difficult to meet this two requirements simultaneously.Utilize top coat to carry heavy alloyed oxidation-resistance property.The report that has just occurred aircraft engine protective coating as far back as the forties in 20th century, through the research of decades, all there has been huge improvement the aspects such as composition and structure of high temperature coating material.There is modified version aluminide coating in 20 century 70s, as aluminium-chromium, aluminium-silicon, aluminium-titanium, platinum-aluminium, the platinum aluminide coating wherein forming with platinum plating aluminising has longer work-ing life.Developed the eighties in 20th century and can adjust coated component, can under higher temperature, play the plasma spraying MCrAlY coating (M represents Fe, Co, Ni or the combination of the two) of high-temperature oxidation resistant effect, be used as at large the metal bonding coating of thermal barrier coating system.It has overcome the weakness mutually restricting between traditional aluminide coating and matrix, aspect resistance to high temperature oxidation, is significantly improved.In order to alleviate the thermal expansion of ceramic coating and matrix, do not mate, simultaneously in order to improve the anti-oxidant of alloy substrate, between matrix and ceramic coating, added layer of metal tack coat yet.Japan had dropped into huge strength at internal combustion turbine with crucial metallic substance in recent years, the motif material that nickel based super alloy is taken turns ultrahigh-temperature part as current combustion gas is still in development, working temperature is constantly improving, and in matrix alloy, adding platinum metals is an important research direction.Wherein to have higher fusing point, stable chemical nature, hardness high for iridium, hot strength and the best metal of thermal stability under high temperature, also be uniquely to have high fusing point and there is the very metal of strong anti-oxidation simultaneously, and be uniquely can in more than 1600 ℃ air, still have the metal of good mechanical properties.Iridium base intermetallic compound and nickel based super alloy are similarly organized.Iridium base intermetallic compound material newly developed intensity at 1200 ℃ reaches 1000MPa, demonstrates good high-temperature behavior.Foreign study data shows, at nickel based super alloy matrix surface, plate iridium-hafnium, iridium-platinum, iridium-tantalum alloy coating as bonding coat, then in aluminising, improve high-temperature oxidation resistance, this type coating has the effect of effective obstruct alloying element, yet bonding strength and use temperature can not meet the needs of some Engineering Reliability.
Summary of the invention
The technical problem that the present invention will solve has been to provide a kind of high-temperature oxidation resistant iridium base nanometer crystal compound coating, it is characterized in that this coating is divided into two-layer, and internal layer is comprised of iridium, and top layer is comprised of tridium-base alloy.
Described compound coating internal layer iridium coating layer thickness is 1 μ m-5 μ m, and top layer tridium-base alloy coat-thickness is 10 μ m-20 μ m.
Alloying element in described compound coating is one or more in titanium, niobium, vanadium, zirconium, hafnium, tantalum, yttrium, aluminium, tungsten, rhodium, platinum.
Alloy in described compound coating exists with simple substance and/or intermetallic compound form.
Another technical problem that the present invention will solve is to provide a kind of preparation method of high-temperature oxidation resistant iridium base nanometer crystal compound coating, it is characterized in that preparing double-deck compound coating on the surface of body material; First on the surface of body material, prepare nanocrystalline iridium coating; Then on the surface of iridium coating layer, prepare iridium base nanometer crystal coating, wherein iridium content is 50 at.% ~ 95 at.%, and surplus is alloying element.
The preparation method of described high-temperature oxidation resistant iridium base nanometer crystal compound coating, it is characterized in that preparing the method that iridium coating layer adopts is one of following two class methods: physical vapor deposition and chemical vapour deposition; The physical vapor deposition that wherein adopted is the modification of double-deck glow plasma surface, pulsed laser deposition, magnetron sputtering or electro beam physics vapour deposition; The chemical vapour deposition adopting is metal matrix chemical vapour deposition or laser chemical vapor deposition.
The preparation method of described high-temperature oxidation resistant iridium base nanometer crystal compound coating, is characterized in that preparing iridium coating layer and adopts physical vapor deposition and chemical gaseous phase depositing process; The physical vapor deposition wherein adopting is magnetron sputtering or electro beam physics vapour deposition.
The preparation method of described high-temperature oxidation resistant iridium base nanometer crystal compound coating, it is characterized in that preparing the method that iridium coating layer adopts is the modification of double-deck glow plasma surface; On iridium coating layer, preparing the method that iridium base coating adopts is magnetron sputtering.
Effect: the present invention compared with prior art, has the following advantages:
(1) compound coating and body material bonding strength are high;
(2) nanocrystalline coating improves high-temperature oxidation resistance;
(3) nanocrystalline coating has good effect of heat insulation;
(4) compound coating has longer work-ing life.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims to the modification of the various equivalent form of values of the present invention and limit.
Embodiment
Embodiment 1
Using nickel-base alloy as body material, and iridium and iridium 20at.% airconium alloy plates are as target.Before deposition, body material is carried out to mechanical polishing and cleaning.First, adopt two brightness plasma surface modification technologies at matrix surface deposition one deck iridium film, iridium target voltage-600V, workpiece voltage-200V, operating air pressure 10Pa, target and matrix interpole gap are 15mm, depositing time 30min can obtain the iridium film of 1 μ m thickness; Then, adopt electro beam physics vapour deposition technology to prepare iridium zirconium coating on iridium film surface, electron beam current is 400mA, vacuum chamber operating air pressure 2 * 10
-3pa, target and matrix interpole gap are 60mm, 300 ℃ of matrix surface temperature, deposition 1h can obtain the iridium zirconium alloy coating of 10 μ m thickness.The nanocrystalline composite coating on Superalloy Substrate surface is after 1500 ℃ of oxidation 30h of high temperature, and coating is still in conjunction with firm.
Embodiment 2
Using nickel-base alloy as body material, and iridium and iridium 10at.% niobium alloy plate are as target.Before deposition, body material is carried out to mechanical polishing and cleaning.First, adopt two brightness plasma surface modification technologies at matrix surface deposition one deck iridium film, iridium target voltage-650V, workpiece voltage-200V, operating air pressure 5Pa, target and matrix interpole gap are 15mm, depositing time 1h can obtain the iridium film of 5 μ m thickness; Then, adopt magnetically controlled DC sputtering technology to prepare iridium zirconium coating on iridium film surface, electron beam current is 450 mA, vacuum chamber operating air pressure 10
-3pa, target and matrix interpole gap are 60mm, 500 ℃ of matrix surface temperature, deposition 1h can obtain the iridium niobium alloy coating of 12 μ m thickness.The nanocrystalline composite coating of matrix surface is after 2000 ℃ of ablation 2 min of high temperature, and coating surface layer grain is significantly grown up, and a small amount of micropore appears in surface, and coating is in conjunction with firm.
Above are only single embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content that does not depart from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. a high-temperature oxidation resistant compound coating, is characterized in that this coating is divided into two-layer, and internal layer is comprised of iridium, and top layer is comprised of tridium-base alloy, and wherein iridium coating layer thickness is 1 μ m ~ 5 μ m, and tridium-base alloy coat-thickness is 10 μ m ~ 20 μ m.
2. according to the compound coating described in claims 1, it is characterized in that alloying element in coating is one or more in titanium, niobium, vanadium, zirconium, hafnium, tantalum, yttrium, aluminium, tungsten, rhodium, platinum.
3. according to the compound coating described in claims 1, it is characterized in that the alloy in coating exists with simple substance and/or intermetallic compound form.
4. a preparation method for high-temperature oxidation resistant iridium base nanometer crystal compound coating, is characterized in that preparing double-deck compound coating on the surface of body material; First on the surface of body material, prepare one deck nanocrystalline iridium coating; Then on the surface of iridium coating layer, prepare one deck iridium base nanometer crystal coating, wherein iridium content is 50 at.% ~ 95 at.%, and surplus is alloying element.
5. according to the preparation method described in claims 4, it is characterized in that preparing iridium coating layer and adopt physical vapor deposition and chemical gaseous phase depositing process.
6. according to the preparation method described in claims 5, it is characterized in that the physical vapor deposition that internal layer iridium coating layer adopts is the modification of double-deck glow plasma surface, pulsed laser deposition, magnetron sputtering or electro beam physics vapour deposition.
7. according to the preparation method described in claims 5, it is characterized in that the chemical vapour deposition that internal layer iridium coating layer adopts is laser chemical vapor deposition or metal matrix chemical vapour deposition.
8. according to the preparation method described in claims 4, it is characterized in that preparing the method that tridium-base alloy coating adopts is physical vapor deposition.
9. according to the preparation method described in claims 8, it is characterized in that the physical vapor deposition that iridium base coating adopts is magnetron sputtering or electro beam physics vapour deposition.
10. according to the preparation method described in claims 4 or 5 or 8, it is characterized in that preparing the method that iridium coating layer adopts is the modification of double-deck glow plasma surface; On iridium coating layer, preparing the method that iridium base coating adopts is magnetron sputtering.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2600783C1 (en) * | 2015-06-10 | 2016-10-27 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Method for application of ceramic layer of heat shielding coating |
| CN108070859A (en) * | 2017-12-14 | 2018-05-25 | 西北有色金属研究院 | Refractory metal surfaces lamellar composite Ir/W high-temperature oxidation resistant coatings and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006228688A (en) * | 2005-02-21 | 2006-08-31 | Furuya Kinzoku:Kk | Electrode tip for spark plug |
| CN102534290A (en) * | 2012-03-06 | 2012-07-04 | 陈照峰 | Platinum group metal alloy coating with controlled alloying elements and preparation method thereof |
-
2012
- 2012-08-08 CN CN201210279046.2A patent/CN103572210A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006228688A (en) * | 2005-02-21 | 2006-08-31 | Furuya Kinzoku:Kk | Electrode tip for spark plug |
| CN102534290A (en) * | 2012-03-06 | 2012-07-04 | 陈照峰 | Platinum group metal alloy coating with controlled alloying elements and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| F.MAURY,ET AL.: "Iridium coatings grown by metal-organic chemical vapor deposition in a hot-wall CVD reactor", 《SURFACE AND COATINGS TECHNOLOGY》, vol. 163164, 31 December 2003 (2003-12-31) * |
| FENG WU,ET AL.: "Cyclic oxidation behavior of iridium-modified aluminide coatings for nickel-base single crystal superalloy TMS-75", 《MATERIALS TRANSACTIONS》, vol. 44, no. 9, 31 December 2003 (2003-12-31), XP002724086 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2600783C1 (en) * | 2015-06-10 | 2016-10-27 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Method for application of ceramic layer of heat shielding coating |
| CN108070859A (en) * | 2017-12-14 | 2018-05-25 | 西北有色金属研究院 | Refractory metal surfaces lamellar composite Ir/W high-temperature oxidation resistant coatings and preparation method thereof |
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Address after: 215400 people's road, Jiangsu, Taicang Hua Xu apartment C412 Applicant after: Suzhou Hongjiu Aviation Heat Proof Materials Technology Co., Ltd. Address before: 215400 Suzhou, Jiangsu, Taicang Town, the people of the South Road, No. 162 Applicant before: Suzhou Hongjiu Aviation Heat Proof Materials Technology Co., Ltd. |
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Application publication date: 20140212 |