CN115354268A - Method for involuting Jin Nianjie layer surface modification by supersonic plasma jet - Google Patents
Method for involuting Jin Nianjie layer surface modification by supersonic plasma jet Download PDFInfo
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- CN115354268A CN115354268A CN202211055545.3A CN202211055545A CN115354268A CN 115354268 A CN115354268 A CN 115354268A CN 202211055545 A CN202211055545 A CN 202211055545A CN 115354268 A CN115354268 A CN 115354268A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000004048 modification Effects 0.000 title claims abstract description 13
- 238000012986 modification Methods 0.000 title claims abstract description 13
- 239000000956 alloy Substances 0.000 claims abstract description 68
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 68
- 239000011248 coating agent Substances 0.000 claims abstract description 38
- 238000000576 coating method Methods 0.000 claims abstract description 38
- 238000011282 treatment Methods 0.000 claims abstract description 27
- 230000003746 surface roughness Effects 0.000 claims abstract description 21
- 238000007750 plasma spraying Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 abstract description 27
- 238000007254 oxidation reaction Methods 0.000 abstract description 27
- 239000012720 thermal barrier coating Substances 0.000 abstract description 9
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 13
- 239000000919 ceramic Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000005422 blasting Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000005488 sandblasting Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005269 aluminizing Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000009489 vacuum treatment Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/073—Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
Abstract
The invention discloses a method for modifying the surface of a Jin Nianjie layer by supersonic plasma jet, which comprises the following steps: firstly, preparing an alloy bonding layer on the surface of a substrate; secondly, performing surface modification treatment on the Jin Nianjie involution layer by using supersonic plasma jet to reduce the surface roughness; and thirdly, performing surface modification treatment on the involution Jin Nianjie layer by using supersonic plasma jet to quickly form a compact oxide layer. The surface of the Jin Nianjie layer is modified by supersonic plasma jet, so that the roughness of the surface of the alloy bonding layer is effectively reduced, a layer of compact oxide can be formed, the high-temperature oxidation resistance of the coating is effectively improved, the high-temperature service performance of the thermal barrier coating can be further improved, and the coating has wide application prospect and huge economic and social benefits.
Description
Technical Field
The invention relates to the technical field of thermal barrier coatings, in particular to a method for modifying the surface of Jin Nianjie layer by supersonic plasma jet.
Background
The thermal barrier coating system is composed of an alloy bond coat, a ceramic layer, and a thermally grown oxide layer (TGO) formed by oxidation of the alloy bond coat. In order to further improve the high temperature oxidation resistance of the alloy bonding layer, there are two main methods: one is to prepare a layer of compact Al on the surface of the alloy bonding layer in advance 2 O 3 Film to slow down the growth rate of TGO, and reduce the surface roughness of the alloy bonding layer to reduce the interface stress of the coating, finally preparing the alloy bonding layer with good oxidation resistance. At present, the modification treatment method of the alloy bonding layer mainly comprises the following steps: vacuum/low pressure pre-heat treatment, laser remelting treatment, electron beam remelting treatment, sand blasting/shot blasting/grinding treatment, aluminizing or aluminizing combined laser remelting treatment, and the like. The result shows that after the coating is subjected to vacuum or low-pressure preheating treatment, a layer of compact Al can be generated on the surface of the alloy bonding layer 2 O 3 Film, can effectively block Cr 2 O 3 NiO and (Ni, co) (Al, cr) 2 O 4 The generation of spinel and other mixed oxides (CSN) can slow down the growth rate of TGO to a certain extent and improve the high-temperature oxidation resistance of the coating. However, since the operation thereof is performed in a vacuum or low-pressure environment, the size of the workpiece is limited by the vacuum chamber; at the same time, preheating the Al produced 2 O 3 The film is thin, the roughness of the involution Jin Nianjie layer is less influenced, namely, the surface roughness of the alloy bonding layer cannot be effectively improved through vacuum or low-pressure preheating treatment. The surface roughness of the alloy bonding layer is reduced by performing sand blasting, shot blasting and grinding treatment on the surface of the Jin Nianjie layer, and dense Al is formed in the oxidation process 2 O 3 The oxidation resistance of the film and coating can be improved. However, the sand blasting, shot blasting and grinding treatments have obvious defects that substances such as sand grains are easily mixed on the surface of the alloy bonding layer in the sand blasting, shot blasting and grinding treatments, the diffusion of oxygen in the coating is promoted during the high-temperature service of the coating, the oxidation of the coating is accelerated, and simultaneously, defects are caused on the surface of the alloy bonding layer to form crack sources, so that the coating fails. And a layer of aluminum is plated on the surface of the alloy bonding layer without the ceramic layer, so that the growth rate of TGO can be effectively reduced. When spraying pottery on the aluminum coatingAfter the ceramic layer is coated, the Al-plated layer is easy to be mixed into partial raw material powder particles of the ceramic layer, so that the oxidation is easy to accelerate, and the high-temperature oxidation resistance of the coating is reduced. The surface roughness of the alloy bonding layer can be reduced by treating the surface of the alloy bonding layer by using a laser remelting or electron beam remelting process, but a compact oxide film cannot be rapidly generated on the surface of the alloy bonding layer. In the preparation process of the thermal barrier coating, the problems of process conversion existing in the adoption of the treatment processes are complex in operation, production efficiency is reduced, continuous production is not facilitated, surface pollution of the alloy bonding layer is easily caused by the conversion of the spraying process, and meanwhile, production cost is increased.
Disclosure of Invention
The invention aims to provide a method for modifying the surface of Jin Nianjie layer by plasma jet, which can reduce the surface roughness of an alloy bonding layer and oxidize the surface to form a compact oxidation film, thereby improving the high-temperature oxidation resistance of a thermal barrier coating.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for modifying the surface of a mating Jin Nianjie layer by using supersonic plasma jet, comprising the following steps: firstly, preparing an alloy bonding layer on the surface of a substrate; secondly, performing surface modification treatment on the involution Jin Nianjie layer by using supersonic plasma jet to reduce the surface roughness; and thirdly, performing surface modification treatment on the involution Jin Nianjie layer by using supersonic plasma jet to quickly form a compact oxide layer.
Further, the first step specifically comprises the following steps: an alloy bonding layer is prepared on the surface of the metal matrix by adopting a supersonic plasma spraying spray gun, the alloy bonding layer is made of CoNiCrAlY, niCoCrAlY, niCrAlYHY, niCoCrAlYHf, niCoCrAlYHfSi or NiCoCrAlTaY, and the surface roughness Ra is 15-35 mu m.
Further, the second step specifically includes the steps of: continuously scanning the surface of the formed alloy bonding layer by adopting supersonic plasma spraying jet flow in a powder-feeding-free state, wherein the power is 50-100kW, the distance is 20-50mm, the times are 20-50 times, the scanning angle (included angle between the jet flow and the surface of the coating) is 15-75 degrees, and the moving speed is 20-200mm/s.
Furthermore, in the second step, the characteristics of high rigidity, high temperature and high speed of plasma jet in the supersonic plasma spraying process are utilized to remelt the surface of the alloy bonding layer, remove unfused particles adhered to the surface of the alloy bonding layer, reduce the surface roughness (Ra is 4-10 mu m), and oxidize to form dispersed oxide.
Further, the third step takes the following steps: continuously scanning the surface of the alloy bonding layer after the surface remelting again by adopting supersonic plasma spraying jet flow under the powder feeding-free state, wherein the power is 35-110kW, the distance is 60-150mm, the times are 50-120 times, the scanning angle (included angle between jet flow and the coating surface) is 80-100 degrees, and the moving speed is 100-500mm/s.
Furthermore, in the third step, the high enthalpy value characteristic of plasma jet in the supersonic plasma spraying process is utilized to oxidize the surface of the alloy bonding layer to generate a compact oxide layer with the thickness of 50-300nm.
The invention has the following beneficial effects: according to the method, after the alloy bonding layer is prepared by deposition, the surface of the alloy bonding layer is modified by supersonic plasma jet on the premise of not moving a sample and replacing equipment, so that the surface roughness of the alloy bonding layer can be obviously reduced, a compact oxide layer can be quickly and efficiently formed on the surface of the alloy bonding layer, the high-temperature oxidation resistance of the thermal barrier coating is effectively improved, the high-temperature service performance of the thermal barrier coating can be further improved, and the method has a wide application prospect.
Drawings
FIG. 1 is a surface morphology of a sprayed alloy bonding layer of example 1;
FIG. 2 is a sectional view of an as-sprayed alloy bonding layer of example 1;
FIG. 3 is the surface morphology of the alloy bond layer after plasma jet surface modification of example 1;
FIG. 4 is the surface morphology of the oxide after the alloy bonding layer of example 1 is subjected to surface modification;
FIG. 5 is a cross-sectional view of an oxide of the alloy bonding layer of example 1 after surface modification;
FIG. 6 is the cross-sectional profile of the coating of example 1 after static oxidation at 1050 deg.C for 200 h.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
A method for modifying the surface of Jin Nianjie layer by supersonic plasma jet is characterized in that CoNiCrAlY alloy powder is used as a raw material (the average diameter is about 60 mu m), an alloy bonding layer is prepared by deposition of a supersonic plasma spraying spray gun, and a Jin Nianjie layer is combined and observed by a scanning electron microscope, so that the surface appearance of the obtained coating is shown in figure 1, and the section appearance is shown in figure 2. As a result of measuring the surface roughness, the surface roughness Ra of the as-sprayed alloy bond layer was 27 μm.
The plasma jet is used for carrying out continuous scanning heating treatment on the surface of the Jin Nianjie layer by two steps, and the operation steps are as follows:
the first step is as follows: the power was 80kW, the distance was 30mm, the heating was continued for 30 times, the scanning angle was 45 degrees, and the moving speed was 110mm/s.
The second step is that: the power was 100kW, the distance was 120mm, the heating was continued 80 times, the scanning angle was 90 degrees, and the moving speed was 300mm/s.
The surface appearance of the coating after the two-step heat treatment is shown in figure 3, and the comparison of figure 1 shows that the unmelted particles adhered to the surface of the alloy bonding layer in a spraying state after the supersonic plasma jet preheating treatment disappear, the surface smoothness of the alloy bonding layer is improved, and the surface roughness Ra is 10 mu m.
After the alloy bonding layer is subjected to primary preheating treatment in the first step, fine and uniformly distributed oxide particles are formed on the surface of the coating; on the basis, after the second preheating treatment, the oxide which is uniformly distributed and fine on the surface of the coating grows to be connected into a film, the film thickness is about 90nm, the surface micro-morphology is shown in figure 4, and the section morphology is shown in figure 5. The result of a 1050 ℃ high-temperature static oxidation experiment on the coating is shown in fig. 6, and it can be found that after the surface of the alloy bonding layer is modified, the high-temperature oxidation resistance of the coating can be obviously improved, which shows that the thickness of the TGO layer on the surface of the alloy bonding layer after oxidation is obviously reduced, and the mixed oxide layer in the TGO layer is thinner, so that the oxidation rate of the coating is effectively reduced.
Example 2
A method for modifying the surface of Jin Nianjie layer by supersonic plasma jet is characterized in that NiCoCrAlY alloy powder is used as a raw material (the average diameter is about 50 mu m), an alloy bonding layer is prepared by deposition through a supersonic plasma spraying spray gun, and the surface roughness Ra of the alloy bonding layer in a spraying state is 22 mu m by measuring the surface roughness.
The plasma jet is used for carrying out continuous scanning heating treatment on the surface of the involution Jin Nianjie layer in two steps, and the operation steps are as follows:
the first step is as follows: the power was 70kW, the distance was 45mm, the heating was continued 40 times, the scanning angle was 60 degrees, and the moving speed was 90mm/s.
The second step is that: the power was 110kW, the distance was 100mm, the heating was continued 60 times, the scanning angle was 85 degrees, and the moving speed was 350mm/s.
The surface smoothness of the sprayed alloy bonding layer is improved after the supersonic plasma jet flow preheating treatment, and the surface roughness Ra is 8 mu m.
After the alloy bonding layer is subjected to secondary supersonic plasma jet preheating treatment, the surface of the coating is oxidized to form an oxide film with the thickness of about 60nm. The result of a 1050 ℃ high-temperature static oxidation experiment on the coating shows that after the surface of the Jin Nianjie layer is modified, the high-temperature oxidation resistance of the coating can be obviously improved, which shows that the thickness of a TGO layer on the surface of the alloy bonding layer after oxidation is obviously reduced, and a mixed oxide layer in the TGO layer is thinner, so that the oxidation rate of the coating is effectively reduced.
Example 3
A method for modifying the surface of Jin Nianjie layer by supersonic plasma jet is characterized in that NiCrAlY alloy powder is used as a raw material (the particle size of the powder is 5-30 mu m), a supersonic plasma spraying spray gun is used for depositing and preparing an alloy bonding layer, and the roughness Ra of the surface of the alloy bonding layer in a spraying state is 17 mu m.
The plasma jet is used for carrying out continuous scanning heating treatment on the surface of the involution Jin Nianjie layer in two steps, and the operation steps are as follows:
the first step is as follows: the power was 60kW, the distance was 20mm, the heating was continued 45 times, the scanning angle was 50 degrees, and the moving speed was 160mm/s.
The second step is that: the power was 80kW, the distance was 140mm, the heating was continued for 90 times, the scanning angle was 90 degrees, and the moving speed was 400mm/s.
The surface smoothness of the coating after the two-step heat treatment is improved, non-molten particles are attached, and the surface roughness Ra is 5 mu m.
After the alloy bonding layer is subjected to secondary preheating treatment, the surface of the coating is oxidized to form a compact oxide film with the thickness of about 150nm. The result of a 1050 ℃ high-temperature static oxidation experiment on the coating shows that after the surface of the Jin Nianjie layer is modified, the high-temperature oxidation resistance of the coating is remarkably improved, which means that the thickness of a TGO layer on the surface of the oxidized alloy bonding layer is remarkably reduced, and a mixed oxide layer in the TGO layer is thinner, so that the oxidation rate of the coating is effectively reduced.
At present, the surface treatment of the Jin Nianjie layer is mostly carried out by a vacuum heating method, so that Al is formed on the surface of the layer 2 O 3 The oxide layer is the main oxide layer, thereby reducing the oxidation rate of the alloy bonding layer under high-temperature service conditions. The vacuum treatment is adopted, the size of the part is limited by a vacuum chamber, and the application of the method is greatly limited; in addition, the surface roughness of the alloy bonding layer cannot be effectively reduced after vacuum treatment so as to reduce the interface stress of the coating. The invention utilizes the characteristics of high rigidity, high temperature and high speed of supersonic plasma jet flow to perform surface modification treatment on the Jin Nianjie layer under atmospheric conditions, remelting the surface of the coating can effectively reduce the surface roughness of the coating, and simultaneously a layer of compact oxide can be formed on the surface of the coating. In addition, the supersonic plasma spraying can be adopted to deposit an alloy bonding layer and modify the surface of the Jin Nianjie layer, and a ceramic layer with excellent performance can be prepared, so that the continuous production of the thermal barrier coating can be realized, and process conversion and equipment addition are not needed, thereby greatly improving the efficiency and reducing the production cost.
The invention can effectively improve the high-temperature oxidation resistance of the coating, can further improve the high-temperature service performance of the thermal barrier coating, and has wide application prospect.
Claims (6)
1. A method for modifying the surface of a involution Jin Nianjie layer by using supersonic plasma jet is characterized by comprising the following steps:
firstly, preparing an alloy bonding layer on the surface of a metal matrix by adopting a supersonic plasma spraying spray gun;
secondly, performing surface modification treatment on the Jin Nianjie layer by using supersonic plasma jet in a powder-feeding-free state to reduce the surface roughness of the coating;
and thirdly, performing surface modification treatment on the involution Jin Nianjie layer by using supersonic plasma jet in a powder feeding-free state to quickly form a compact oxide layer.
2. The method of modifying the surface of Jin Nianjie using a supersonic plasma jet in accordance with claim 1, wherein the first step comprises the steps of: an alloy bonding layer is prepared on the surface of the metal matrix by adopting a supersonic plasma spraying spray gun, and the alloy bonding layer is made of CoNiCrAlY, niCoCrAlY, niCrAlYHY, niCoCrAlYHf, niCoCrAlYHfSi and NiCoCrAlTaY.
3. The method for modifying a surface of Jin Nianjie layer using supersonic plasma jet according to claim 1, wherein the second step comprises the steps of: supersonic plasma jet is adopted to continuously scan the surface of the formed alloy bonding layer under the condition of no powder feeding, the power is 50-100kW, the distance is 20-50mm, the times are 20-50 times, the scanning angle is 15-75 degrees, the included angle between the jet and the coating surface is 20-200mm/s, and the moving speed is 20-200mm/s.
4. The method for modifying the surface of Jin Nianjie layer by supersonic plasma jet according to claim 3, wherein in the second step, the characteristics of high rigidity, high temperature and high speed of the plasma jet in the supersonic plasma spraying process are utilized to remelt the surface of the alloy bonding layer and remove the unmelted particles adhered to the surface of the alloy bonding layer, so that the surface roughness of the alloy bonding layer is reduced to Ra of 4-10 μm, and simultaneously, the oxide is formed in a dispersed manner on the surface.
5. The method for modifying a surface of Jin Nianjie layer using supersonic plasma jet according to claim 1, wherein the third step comprises the steps of: continuously scanning the surface of the alloy bonding layer after the surface remelting again by adopting supersonic plasma spraying jet flow under the powder feeding-free state, wherein the power is 35-110kW, the distance is 60-150mm, the times are 50-120 times, the scanning angle is 80-100 degrees of included angle between the jet flow and the coating surface, and the moving speed is 100-500mm/s.
6. The method for modifying the surface of Jin Nianjie layers by utilizing supersonic plasma jet as claimed in claim 5, wherein the third step is to utilize the high enthalpy value characteristic of plasma jet in the supersonic plasma spraying process to rapidly oxidize the surface of the alloy bonding layer to form a dense oxide layer with a thickness of 50-300nm.
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|---|---|---|---|---|
| CN102719782A (en) * | 2012-06-28 | 2012-10-10 | 大连理工大学 | Treatment method for improving oxidation resistance of thermal barrier coating (TBC) bonding layer |
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| CN105886994A (en) * | 2016-04-13 | 2016-08-24 | 西安交通大学 | Method for manufacturing high-performance layered thermal barrier coating system |
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| EP3967847A1 (en) * | 2020-09-14 | 2022-03-16 | Honeywell International Inc. | Grit-blasted and densified bond coat for thermal barrier coating and method of manufacturing the same |
| CN114438432A (en) * | 2022-01-28 | 2022-05-06 | 上海交通大学包头材料研究院 | Preparation method of anti-oxidation bonding layer and thermal barrier coating thereof |
-
2022
- 2022-08-31 CN CN202211055545.3A patent/CN115354268A/en active Pending
Patent Citations (6)
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| CN102719782A (en) * | 2012-06-28 | 2012-10-10 | 大连理工大学 | Treatment method for improving oxidation resistance of thermal barrier coating (TBC) bonding layer |
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| CN105886994A (en) * | 2016-04-13 | 2016-08-24 | 西安交通大学 | Method for manufacturing high-performance layered thermal barrier coating system |
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| EP3967847A1 (en) * | 2020-09-14 | 2022-03-16 | Honeywell International Inc. | Grit-blasted and densified bond coat for thermal barrier coating and method of manufacturing the same |
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| Title |
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| JIANJIANG TANG,ETC: ""Preheating treatment of thermal barrier coatings by supersonic plasma jet"", 《MATERIALS LETTERS》 * |
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Application publication date: 20221118 |