CN101333656A - Method for preparing thermal barrier coatings of high-temperature structural material - Google Patents
Method for preparing thermal barrier coatings of high-temperature structural material Download PDFInfo
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- CN101333656A CN101333656A CNA2008101166653A CN200810116665A CN101333656A CN 101333656 A CN101333656 A CN 101333656A CN A2008101166653 A CNA2008101166653 A CN A2008101166653A CN 200810116665 A CN200810116665 A CN 200810116665A CN 101333656 A CN101333656 A CN 101333656A
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- ion beam
- thermal insulation
- structural material
- insulation ceramics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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Abstract
The invention discloses a process for preparing a thermal barrier layer of a high temperature structural material. The process comprises the steps of: firstly, plating or coating an anti-oxidation bonding layer on the high temperature structural material; secondly, plating or coating a heat insulation ceramic layer on an anti-oxidation bonding layer; thirdly, using intense pulsed ion beams to irradiate the surface of the material so as to make the heat insulation ceramic layer melt and mix with the anti-oxidation bonding layer to form a transition layer; and finally plating or coating a heat insulation ceramic layer again to obtain the thermal barrier layer of the high temperature structural material. Because the transition layer is formed between the anti-oxidation bonding layer and the heat insulation ceramic layer, the mismatch stress between the two layers is reduced, and the service life of the thermal barrier layer is extended.
Description
Technical field
The invention relates to alloy material pyroprocessing technology, be specifically related to a kind of preparation method of thermal barrier coatings of high-temperature structural material.
Background technology
High-temperature structural material extensively is used as turbine engine combustion chamber, the high temperature combustors of high-temperature boiler and the structured material in other hot operation district in the devices such as aircraft, steamer, automobile, work under the severe environment of high temperature and oxidation corrosion more than 1000 ℃.Under so high temperature, existing high-temperature structural material (as Fe base, Ni base, Co base, Ti base, Nb base, W base, Ta based high-temperature alloy, or ultrahigh temperature alloy and intermetallic compound) has been difficult to satisfy simultaneously hot strength and these two requirements of high temperature oxidation resisting.Adopt the method for surface-coated protective layer to protect high-temperature structural material at present, reduce the high-temperature structural material surface temperature, improve actual work temperature.Protective layer is meant multi-layer compound structure, and the protective layer that contains ceramic thermal barrier layer is called thermal barrier coatings.The simplest thermal barrier coatings comprises a ceramic thermal barrier layer and an anti-oxidant tack coat, and the purposes of ceramic thermal barrier layer is poor in its both sides formation temperature, thereby reduces the temperature on high-temperature structural material surface under the high-temperature work environment; Anti-oxidant tack coat between high-temperature structural material and ceramic thermal barrier layer, general composition is a metal or alloy, plays resistance to high temperature oxidation and thermal stresses coupling dual function.And the function of resistance to high temperature oxidation, bonding, prevention Elements Diffusion may be realized by different coating or coating in more complicated protective layer structure.Different high-temperature structural materials can adopt different thermal barrier coatings.Such as present most widely used Ni based high-temperature alloy material, extensively adopt MCrAlY alloy (M wherein can represent Fe, Ni, Co, NiCo or other metallic element) anti-oxidant tack coat or Ni
3The anti-oxidant tack coat of Al and Pt adds PSZ and (uses Y
3O
2, MgO, CeO
2, Sc
2O
3, In
2O
3Or the partially stabilized zirconium white of CaO used as stabilizers) thermal insulation ceramics layer plays resistance to high temperature oxidation and stress coupling dual function.The thermal barrier coatings that the thermal insulation ceramics layer constitutes is the best class surface protection coating of high temperature protection performance the best, application prospect.Main using plasma spraying of thermal barrier coatings at present or the preparation of electro beam physics vapour deposition method, other physics, chemical gaseous phase depositing process, molten-gel method are also in exploration.The preparation method who is sophisticated thermal barrier coatings is, at first plating or apply the thick anti-oxidant tack coat of MCrAlY of 50 μ m～300 μ m on the Ni based high-temperature alloy, plating or apply the thick PSZ thermal insulation ceramics layer of 60 μ m～200 μ m on tack coat again.This type of thermal barrier coatings can form a thermal oxide layer between tack coat and the thermal insulation ceramics layer in high-temperature oxidation process, after thermal oxide layer increased to certain thickness, the mismatch stress of tack coat and thermal insulation ceramics layer can make the thermal insulation ceramics pull-up fall, lose efficacy.
Summary of the invention
The present invention overcomes deficiency of the prior art, and a kind of preparation thermal barrier coatings method of utilizing intense pulsed ion beam irradiation is provided, and this method can reduce the mismatch stress of tack coat and thermal insulation ceramics interlayer, prolongs the service life of thermal barrier coatings under high-temperature oxidation environment.
Technical scheme of the present invention is:
A kind of preparation method of thermal barrier coatings of high-temperature structural material, its step comprises:
1) plating or the anti-oxidant tack coat of coating one deck on high-temperature structural material;
2) plating or coating one deck thermal insulation ceramics layer on above-mentioned anti-oxidant tack coat;
3) with intense pulsed ion beam irradiation is carried out on the surface of above-mentioned materials, make above-mentioned thermal insulation ceramics layer and anti-oxidant tack coat generation melting mixing form a transition layer;
4) plating or apply one deck thermal insulation ceramics layer more subsequently makes the thermal barrier coatings of high-temperature structural material.
Described anti-oxidant tack coat can be the MCrAlY alloy, and M wherein represents Fe, Ni, Co, NiCo or other metallic element, and described anti-oxidant adhesive linkage can also be Ni
3Al and Pt.
Described thermal insulation ceramics layer can adopt the PSZ thermal insulation ceramics, and PSZ is for using Y
3O
2, MgO, CeO
2, Sc
2O
3, In
2O
3Or the partially stabilized ZrO of CaO used as stabilizers
2The thickness range of the thermal insulation ceramics layer wherein, step 2) is 1～10 μ m.
The ion energy peak value of described intense pulsed ion beam can be between 10keV～1MeV, and the strong density peaks of ion beam current is at 10A/cm
2～1kA/cm
2Between, and the pulse width of ionic fluid is between 10ns～10 μ s.
Described intense pulsed ion beam is the C ionic fluid of one or more valence states, or C ion and H ionic ion beam mixing or metal ion beam.
The irradiation of described intense pulsed ion beam can adopt single pulse mode, dipulse system or multipulse mode.
Compared with prior art, the invention has the beneficial effects as follows:
Utilize intense pulsed ion beam irradiation, between thermal insulation ceramics layer and anti-oxidant tack coat, melting phenomenon occurs, and then take place to mix and form a transition layer.When the thermal barrier coatings of this structure under high-temperature oxidation environment, the thermal oxide part that anti-oxidant tack coat forms can form complete thermal oxide layer, a part can be blended in the adjacent thermal insulation ceramics layer, can reduce the mismatch stress between anti-oxidant tack coat and the thermal insulation ceramics layer, thereby reduce the possibility that the thermal insulation ceramics pull-up falls to losing efficacy.Therefore adopt thermal barrier coatings that the present invention prepares to have longer work-ing life than the thermal barrier coatings of prior art for preparing.
Description of drawings
Preparation technology's synoptic diagram of the thermal barrier coatings of high-temperature structural material of the present invention shown in the accompanying drawing.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
High-temperature structural material 1 is the IC6 alloy, and anti-oxidant tack coat 2 is NiCoCrAlY alloys, and thermal insulation ceramics layer 3 is 6%～8% (mass percent) Y
3O
2Partially stabilized ZrO
2(abbreviating Y-PSZ or YSZ as).
With reference to the accompanying drawings, the present invention at first prepares anti-oxidant tack coat 2 with EB-PVD (electro beam physics vapour deposition) on high-temperature structural material 1 substrate, and coating should cover whole surface as far as possible.
Then, the thermal insulation ceramics layer 3 that on anti-oxidant tack coat 2, approaches with EB-PVD plating one deck; This leptophragmata thermal Ceramics layer thickness is 1 μ m～10 μ m, should cover whole surface as far as possible.
Subsequently, carry out surface irradiation with 4 pairs of above-mentioned materialss of intense pulsed ion beam, adopt single pulse mode, this ionic fluid is the 30%C of energy 300keV
++ 70%H
+, peak value of pulse beam current density scope is 150A/cm
2～250A/cm
2
Behind the intense pulsed ion beam irradiation, between thermal insulation ceramics layer and anti-oxidant tack coat, form a transition layer 5.
Through after the above-mentioned processing, plate again or coating one deck thermal insulation ceramics layer 3, its thickness is 60 μ m～200 μ m, thereby has finally formed the thermal barrier coatings of high-temperature structural material.
Among the present invention, the foregoing description provides a kind of preparation scheme of having optimized the thermal barrier coatings of high-temperature structural material, and the present invention not only is confined to this embodiment, can make corresponding modification with design requirements according to actual needs, for example:
Provide among the embodiment with atomic ratio be 3: 7 C ion and H ionic ion beam mixing as pulsed ionizing beam, but the also C ion of one or more valence states of pulsed ionizing beam, or the C ion of other atomic ratios and H ionic combined beam, or metal ion beam.
In addition, intense pulsed ion beam can also be a dipulse system except single pulse mode, or adopts the multipulse mode.The energy peak of ionic fluid between 10keV～1MeV, the strong density peaks of ion beam current is at 10A/cm
2～1kA/cm
2Between, and the pulse width of ionic fluid is between 10ns～10 μ s.
In addition, substrate material of the present invention can be various high-temperature structural materials.Described anti-oxidant tack coat can be the MCrAlY alloy, or Ni
3Al and Pt.Described thermal insulation ceramics layer can be the PSZ that adopts various stablizers.
In addition, the method for plating or applying anti-oxidant tack coat and thermal insulation ceramics layer among the present invention can also comprise other physics or chemical vapour deposition, plasma spraying, magnetron sputtering plating, arc discharge ion plating, molten-gel method etc. except employing EB-PVD.
More than by specific embodiment the preparation method of thermal barrier coatings provided by the present invention has been described, it will be understood by those of skill in the art that in the scope that does not break away from essence of the present invention, can make certain deformation or modification to the present invention; Its preparation method also is not limited to disclosed content among the embodiment.
Claims (8)
1, a kind of preparation method of thermal barrier coatings of high-temperature structural material, its step comprises:
1) plating or the anti-oxidant tack coat of coating one deck on high-temperature structural material;
2) plating or coating one deck thermal insulation ceramics layer on above-mentioned anti-oxidant tack coat;
3) with intense pulsed ion beam irradiation is carried out on the surface of above-mentioned materials, make above-mentioned anti-oxidant tack coat and the fusion of thermal insulation ceramics layer form a transition layer;
4) plating or apply one deck thermal insulation ceramics layer more subsequently makes the thermal barrier coatings of high-temperature structural material.
2, the method for claim 1 is characterized in that, described anti-oxidant adhesive linkage is the MCrAlY alloy, and M wherein represents Fe, Ni, Co, NiCo or other metallic element.
3, the method for claim 1 is characterized in that, described anti-oxidant adhesive linkage is Ni
3Al and Pt.
As claim 2 or 3 described methods, it is characterized in that 4, described thermal insulation ceramics layer adopts the PSZ thermal insulation ceramics, PSZ is for using Y
3O
2, MgO, CeO
2, Sc
2O
3, In
2O
3Or the partially stabilized ZrO of CaO used as stabilizers
2
5, method as claimed in claim 4 is characterized in that, described step 2) in the thickness range of thermal insulation ceramics layer be 1～10 μ m.
6, the method for claim 1 is characterized in that, the ion energy peak value of described intense pulsed ion beam is between 10keV～1MeV, and the strong density peaks of ion beam current is at 10A/cm
2～1kA/cm
2Between, and the pulse width of ionic fluid is between 10ns～10 μ s.
As claim 1 or 6 described methods, it is characterized in that 7, described intense pulsed ion beam is the C ionic fluid of one or more valence states, or C ion and H ionic ion beam mixing, or metal ion beam.
As claim 1 or 6 described methods, it is characterized in that 8, the irradiation of described intense pulsed ion beam adopts single pulse mode, dipulse system or multipulse mode.
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|---|---|---|---|
| CN2008101166653A CN101333656B (en) | 2008-07-15 | 2008-07-15 | Method for preparing thermal barrier coatings of high-temperature structural material |
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|---|---|---|---|
| CN2008101166653A CN101333656B (en) | 2008-07-15 | 2008-07-15 | Method for preparing thermal barrier coatings of high-temperature structural material |
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| CN101333656A true CN101333656A (en) | 2008-12-31 |
| CN101333656B CN101333656B (en) | 2010-12-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818325A (en) * | 2010-04-19 | 2010-09-01 | 中国民航大学 | Method for preparing coating having continuous transition layer by using intense pulsed ion beam |
| CN102345122A (en) * | 2011-10-26 | 2012-02-08 | 北京科技大学 | Multipurpose low-conductivity ceramic/noble metal lamellar composite thermal barrier coating |
| CN103145430A (en) * | 2013-03-22 | 2013-06-12 | 西北有色金属研究院 | Multi-element stabilized zirconia fused salt corrosion-resisting thermal barrier coating material |
| CN104152854A (en) * | 2014-07-08 | 2014-11-19 | 中国人民解放军国防科学技术大学 | High temperature resisting anti-oxidation low infrared emitting ability composite coating and preparation method thereof |
| CN107073449A (en) * | 2014-09-24 | 2017-08-18 | 原子能和替代能源委员会 | There is the catalytic module of improved efficiency in aging |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103224391B (en) * | 2013-03-22 | 2014-08-13 | 西北有色金属研究院 | Multi-component stable thermal-corrosion-resistant zirconia coat material |
-
2008
- 2008-07-15 CN CN2008101166653A patent/CN101333656B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818325A (en) * | 2010-04-19 | 2010-09-01 | 中国民航大学 | Method for preparing coating having continuous transition layer by using intense pulsed ion beam |
| CN102345122A (en) * | 2011-10-26 | 2012-02-08 | 北京科技大学 | Multipurpose low-conductivity ceramic/noble metal lamellar composite thermal barrier coating |
| CN102345122B (en) * | 2011-10-26 | 2013-02-27 | 北京科技大学 | Multipurpose low-conductivity ceramic/noble metal lamellar composite thermal barrier coating |
| CN103145430A (en) * | 2013-03-22 | 2013-06-12 | 西北有色金属研究院 | Multi-element stabilized zirconia fused salt corrosion-resisting thermal barrier coating material |
| CN103145430B (en) * | 2013-03-22 | 2014-09-17 | 西北有色金属研究院 | Multi-element stabilized zirconia fused salt corrosion-resisting thermal barrier coating material |
| CN104152854A (en) * | 2014-07-08 | 2014-11-19 | 中国人民解放军国防科学技术大学 | High temperature resisting anti-oxidation low infrared emitting ability composite coating and preparation method thereof |
| CN107073449A (en) * | 2014-09-24 | 2017-08-18 | 原子能和替代能源委员会 | There is the catalytic module of improved efficiency in aging |
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| Publication number | Publication date |
|---|---|
| CN101333656B (en) | 2010-12-22 |
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