CN1219002C - Gradient heat barrier coat of adhesive layer in variational changed component formed through physical vapor deposition of electron beam - Google Patents
Gradient heat barrier coat of adhesive layer in variational changed component formed through physical vapor deposition of electron beam Download PDFInfo
- Publication number
- CN1219002C CN1219002C CN 200410029705 CN200410029705A CN1219002C CN 1219002 C CN1219002 C CN 1219002C CN 200410029705 CN200410029705 CN 200410029705 CN 200410029705 A CN200410029705 A CN 200410029705A CN 1219002 C CN1219002 C CN 1219002C
- Authority
- CN
- China
- Prior art keywords
- tack coat
- charge bar
- thermal barrier
- electron beam
- ceramic layer
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Physical Vapour Deposition (AREA)
Abstract
The present invention discloses a gradient thermal barrier coating material with continuously changed components of an electron beam physical gaseous phase deposition adhesive layer and a preparation method of the gradient thermal barrier coating material, which has the technical scheme that an adhesive layer material and a ceramic layer material are plated on a metal surface. The thermal barrier coating prepared by the method of the present invention is composed of an adhesive layer and a ceramic layer, the aluminum content of a transition layer of the adhesive layer adjacent to the ceramic layer is increased in a gradient mode by controlling technological parameters of evaporation and deposition, and the increase of the aluminum content enhances the capability of resisting long-term high temperature oxidation corrosion of the adhesive layer so as to effectively extend the service life of the thermal barrier coating in high temperature environment.
Description
Technical field
The present invention relates to a kind of method that adopts electro beam physics vapour deposition to prepare heat barrier coat material, the tack coat composition of preparation-obtained thermal barrier coating changes in gradient.
Background technology
Along with the development of modern high technology, particularly under the hot environment of gas turbine engine, the independent use of existing metallic substance can not be satisfied design and operational requirement.Thermal barrier coating is a kind of surface heat guard technology that develops nineteen sixties, its design philosophy is performances such as high temperature resistant, anticorrosive and low heat conduction of utilizing stupalith superior, mode with coating is mutually compound with metallic matrix with pottery, when improving metal fever end pieces resistance to high temperature corrosion ability, make it can bear higher use temperature, and have the working temperature that improves engine, prolong the hot-end component effect in work-ing life.
The thermal barrier coating structure that adopts is essentially the bilayer structure that is made of ceramic thermal barrier layer and tack coat at present.Its preparation method mainly contains electro beam physics vapour deposition and plasma spraying.
Tack coat is for the metal alloy coating that the heat of alleviating ceramic coating and matrix does not match, adds between matrix and ceramic coating for the oxidation-resistance that improves matrix simultaneously yet (nickel, cobalt, chromium, aluminium, yttrium (Ni, Co, Cr, Al, Y)).Because the tack coat composition has decisive action to rate of oxidation, oxide film composition and integrity and with the factors such as bonding force of matrix, and these factors directly influence the life-span of thermal barrier coating; Simultaneously, tack coat also has important effect to the thermal fatigue life that stops vertical crack expansion, raising matrix.Therefore, tack coat composition Design and the Composition Control in coating procedure thereof are most important for the life-span of thermal barrier coating.
At present general in the world Ni, Co, Cr aluminium yttrium (Ni, Co, Cr, Al, Y) in the composition of tack coat, for plasticity and the high temperature oxidation resistance of taking into account tack coat, the content of often controlling aluminium (Al) is about 8wt%.This coated component design was reasonably under the following working conditions at thousands of hours, still, under longer service condition, because oxidation causes the consumption of aluminium in the tack coat (Al) content, will produce poor aluminium (Al) layer, caused descend the work-ing life of coating.
Summary of the invention
The purpose of this invention is to provide a kind of method with electro beam physics vapour deposition tack coat composition continually varying Thermal Barrier Coatings, the aluminium content of its tack coat and ceramic layer joint rises in gradient in the thermal barrier coating that this method prepares, with the oxidation-resistance property of raising tack coat, and do not reduce its plasticity.
The present invention is a kind of method with electro beam physics vapour deposition tack coat composition continually varying Thermal Barrier Coatings, and this method comprises the following step:
(1) prepare the tack coat charge bar, standby
Bonding layer material is nickel, cobalt, chromium, aluminium, yttrium, and its components in weight percent is 40～60% nickel, 18～22% cobalt, 19～25% chromium, 6～8% aluminium, 0.07～1.5% yttrium, and above-mentioned each composition total amount is 100%;
Prepare the ceramic layer charge bar, standby
Ceramic layer material is the zirconium white of stabilized with yttrium oxide;
(2) the prepared substrate material is standby;
(3) tack coat charge bar, ceramic layer charge bar respectively being got one is placed in the crucible respectively;
(4) substrate is installed on the rotary plate frame;
(5) the vacuum chamber is evacuated to required vacuum tightness～10
-4Pa;
(6) set the speed 10～20rpm of the required rotation of rotary plate frame, and with 600～900 ℃ of electron beam heated substrates, electron-beam voltage 17～19kV;
(7) prevapourising tack coat charge bar, and regulate electronic beam current 1.4～1.8A, charge bar climbing speed 0.8～1.0mm/min, the control steam output;
(8) draw back baffle plate, carry out the hydatogenesis tack coat
Hydatogenesis tack coat, electron beam current are 1.4～1.8A, charge bar climbing speed 1.2～1.6mm/min;
According to coat-thickness to the requirement of adhesive layer thickness when be evaporated to the tack coat total thickness 2/3 the time regulate electron beam current and gradually change to 0.8A rate of change by original 1.8A: 0.2～0.3A/min begins to deposit the transition layer of tack coat;
(9) the tack coat deposition finishes, and tack coat is carried out vacuum heat treatment: 1000～1100 ℃ of temperature, time 2～6hrs;
(10) hydatogenesis ceramic layer, electron beam current are 1.4～1.8A, charge bar climbing speed 1.2～1.6mm/min; Carry out vacuum heat treatment: 1000～1100 ℃ of temperature, time 2～6hrs;
(11) closing device takes out heat barrier coat material, and preparation finishes.
The described method for preparing heat barrier coat material, on the tack coat charge bar, place niobium or tungsten or the molybdenum of 70～100g, make the surface of charge bar form " hot pond ", improve the temperature in electron beam irradiation molten bath, make that the composition of nickel in the coating, cobalt, chromium, aluminium, yttrium is consistent with the composition in the charge bar.
The described method for preparing thermal barrier coating, its tack coat is 1: 3～5 with the thickness ratio of ceramic layer, the thickness of transition layer is 1/3 of tack coat total thickness.
The described method for preparing thermal barrier coating, the weight percent aluminium content of transition layer rises in gradient in step (8), and its rising value rises to 12～15% by original 6～8%.
The described method for preparing thermal barrier coating in step (10), should be regulated the rotary plate frame earlier, the top of the evaporation source crucible that the substrate that is installed on the rotary plate frame is adjusted to be placed with the ceramic layer charge bar.
Advantage of the present invention: (1), high speed hydatogenesis; (2), the nickel in the tack coat (Ni), cobalt (Co), chromium (Cr), aluminium (Al), yttrium (Y) controllable component; (3), aluminium (Al) concentration gradients variation, controlled in the tack coat; (4), tack coat has good plasticity and anti-long-time high temperature oxidation and corrosion ability; (5), the thermal barrier coating service life-span increases substantially.
Description of drawings
Fig. 1 is the structure sectional view of the heat barrier coat material for preparing of the present invention.
Fig. 2 is the present device synoptic diagram.
Fig. 3 is Al, O and Zr composition profiles figure on the thermal barrier coating thickness direction of the present invention.
Fig. 4 is the SEM photo in thermal barrier coating cross section.
Among the figure: 1. vacuum chamber 2. charge bar evaporation source crucibles 3. charge bar evaporation source crucibles 4. tack coat charge bars 5. ceramic layer charge bars 6. baffle plates 7. rotary plate framves 8. electron beam gun 9. electron beam gun 10. substrates
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments
Heat barrier coat material of the present invention, it is to plate one deck bonding layer material and ceramic layer material in the metallic surface.
The present invention is a kind of method with electro beam physics vapour deposition tack coat composition continually varying Thermal Barrier Coatings, comprises the following step,
(1) prepare the tack coat charge bar, standby
Bonding layer material is nickel, cobalt, chromium, aluminium, yttrium, and its components in weight percent is 40～60% nickel, 18～22% cobalt, 19～25% chromium, 6～8% aluminium, 0.07～1.5% yttrium, and above-mentioned each composition total amount is 100%;
Prepare the ceramic layer charge bar, standby
Ceramic layer material is the zirconium white (ZrO of stabilized with yttrium oxide
2+ (6～8wt%) Y
2O
3);
(2) the prepared substrate material is standby;
(3) tack coat charge bar, ceramic layer charge bar respectively being got one is placed in the crucible respectively;
(4) substrate is installed on the rotary plate frame;
(5) the vacuum chamber is evacuated to required vacuum tightness～10
-4Pa;
(6) set the speed 10～20rpm of the required rotation of rotary plate frame, and with 600～900 ℃ of electron beam heated substrates, electron-beam voltage 17～19kV;
(7) prevapourising tack coat charge bar, and regulate electronic beam current 1.4～1.8A, charge bar climbing speed 0.8～1.0mm/min, the control steam output;
(8) draw back baffle plate, carry out the hydatogenesis tack coat
Hydatogenesis tack coat, electron beam current are 1.4～1.8A, charge bar climbing speed 1.2～1.6mm/min;
According to coat-thickness to the requirement of adhesive layer thickness when be evaporated to the tack coat total thickness 2/3 the time regulate electron beam current and gradually change to 0.8A rate of change by original 1.8A: 0.2～0.3A/min begins to deposit the transition layer of tack coat;
(9) the tack coat deposition finishes, and tack coat is carried out vacuum heat treatment: 1000～1100 ℃ of temperature, time 2～6hrs;
(10) hydatogenesis ceramic layer, electron beam current are 1.4～1.8A, charge bar climbing speed 1.2～1.6mm/min; Carry out vacuum heat treatment: 1000～1100 ℃ of temperature, time 2～6hrs;
(11) closing device takes out heat barrier coat material, and preparation finishes.
Embodiment
(1) get Ni, Co, Cr aluminium yttrium (Ni, Co, Cr, Al, Y) alloy charge bar diameter 70mm, long 200mm put into the charge bar evaporation source crucible 2 of vacuum chamber 1; And Ni, Co, Cr aluminium yttrium (Ni, Co, Cr, Al, Y) the 70g niobium is added on alloy charge bar surface, makes this charge bar surface form " hot pond " when hydatogenesis;
Get the zirconium white (ZrO of stabilized with yttrium oxide
2+ (6～8wt%) Y
2O
3) ceramic charge bar diameter 70mm, long 200mm puts into the charge bar evaporation source crucible 3 of vacuum chamber 1;
Choosing substrate is that nickel (Ni) based high-temperature alloy is installed on the rotary plate frame 7;
(2) vacuum chamber 1 is vacuumized 5 * 10
-4Pa;
(3) set the speed of rotation 15rpm of rotary plate frame 7, and with 650 ℃ of electron beam heated substrates, electron-beam voltage 18kV;
(4) prevapourising Ni, Co, Cr aluminium yttrium (Ni, Co, Cr, Al, Y) alloy charge bar, and adjusting electronic beam current 1.6A, charge bar climbing speed 0.8mm/min, control steam output;
(5) draw back baffle plate, carry out hydatogenesis Ni, Co, Cr aluminium yttrium (Ni, Co, Cr, Al, Y) alloy bonding layer
Hydatogenesis Ni, Co, Cr aluminium yttrium (Ni, Co, Cr, Al, Y) the even adhesive layer thickness 30 μ m of alloy, electron beam current is 1.6A, charge bar climbing speed 1.2mm/min, depositing time 15min;
Regulate deposition process parameters, electron beam current is gradually changed to 0.8A by original 1.6A, rate of change 0.2A/min, the transition region thickness 10 μ m that preparation aluminium content rises in gradient, charge bar climbing speed 1.2mm/min, depositing time 5min;
(6) the tack coat deposition finishes, and tack coat is carried out vacuum heat treatment: 1100 ℃ of temperature, time 2hrs;
(7) zirconium white (ZrO of hydatogenesis stabilized with yttrium oxide
2+ (6～8wt%) Y
2O
3) ceramic layer of material, ceramic layer thickness 150 μ m, the adjusting electron beam current is 1.5A, charge bar climbing speed 1.4mm/min, depositing time 30min; Need before the hydatogenesis ceramic layer to regulate rotary plate frame 7, make the substrate 10 that is installed on the rotary plate frame 7 be adjusted to the top of the evaporation source crucible 1 that is placed with ceramic layer charge bar 5.
(8) the ceramic layer deposition finishes, and carries out vacuum heat treatment: 1100 ℃ of temperature, time 2hrs;
(9) closing device takes out heat barrier coat material, and preparation finishes.
Thermal barrier coating [Ni, Co, Cr aluminium yttrium (Ni, Co, Cr, Al, Y) zirconium white (ZrO of alloy+stabilized with yttrium oxide of the vapour deposition on nickel (Ni) based high-temperature alloy that obtains through preparation technology of the present invention
2+ (6～8wt%) Y
2O
3)] in 1100 ℃, air the increasing weight of oxidation of oxidation after 100 hours less than 0.5g/cm
2, active time surpasses 10000 hours, has improved the service life of thermal barrier coating effectively.
Claims (5)
1, a kind of method with electro beam physics vapour deposition tack coat composition continually varying Thermal Barrier Coatings is characterized in that: comprise the following step,
(1) prepare the tack coat charge bar, standby
Bonding layer material is nickel, cobalt, chromium, aluminium, yttrium, and its components in weight percent is 40～60% nickel, 18～22% cobalt, 19～25% chromium, 6～8% aluminium, 0.07～1.5% yttrium, and above-mentioned each composition total amount is 100%;
Prepare the ceramic layer charge bar, standby
Ceramic layer material is the zirconium white of stabilized with yttrium oxide;
(2) the prepared substrate material is standby;
(3) tack coat charge bar, ceramic layer charge bar respectively being got one is placed in the crucible respectively;
(4) substrate is installed on the rotary plate frame;
(5) the vacuum chamber is evacuated to required vacuum tightness～10
-4Pa;
(6) set the speed 10～20rpm of the required rotation of rotary plate frame, and with 600～900 ℃ of electron beam heated substrates, electron-beam voltage 17～19kV;
(7) prevapourising tack coat charge bar, and regulate electronic beam current 1.4～1.8A, charge bar climbing speed 0.8～1.0mm/min, the control steam output;
(8) draw back baffle plate, carry out the hydatogenesis tack coat
Hydatogenesis tack coat, electron beam current are 1.4～1.8A, charge bar climbing speed 1.2～1.6mm/min;
According to coat-thickness to the requirement of adhesive layer thickness when be evaporated to the tack coat total thickness 2/3 the time regulate electron beam current and gradually change to 0.8A rate of change by original 1.8A: 0.2～0.3A/min begins to deposit the transition layer of tack coat;
(9) the tack coat deposition finishes, and tack coat is carried out vacuum heat treatment: 1000～1100 ℃ of temperature, time 2～6hrs;
(10) hydatogenesis ceramic layer, electron beam current are 1.4～1.8A, charge bar climbing speed 1.2～1.6mm/min; Carry out vacuum heat treatment: 1000～1100 ℃ of temperature, time 2～6hrs;
(11) closing device takes out heat barrier coat material, and preparation finishes.
2, the method for preparing thermal barrier coating according to claim 1, it is characterized in that: niobium or tungsten or the molybdenum of on the tack coat charge bar, placing 70～100g, make the surface of charge bar form " hot pond ", improve the temperature in electron beam irradiation molten bath, make that the composition of nickel in the coating, cobalt, chromium, aluminium, yttrium is consistent with the composition in the charge bar.
3, the method for preparing thermal barrier coating according to claim 1 is characterized in that: tack coat is 1: 3～5 with the thickness ratio of ceramic layer, and the thickness of transition layer is 1/3 of tack coat total thickness.
4, the method for preparing thermal barrier coating according to claim 1 is characterized in that: the weight percent aluminium content of transition layer rises in gradient in step (8), and its rising value rises to 12～15% by original 6～8%.
5, the method for preparing thermal barrier coating according to claim 1 is characterized in that: in step (10), should regulate the rotary plate frame earlier, the top of the evaporation source crucible that the substrate that is installed on the rotary plate frame is adjusted to be placed with the ceramic layer charge bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410029705 CN1219002C (en) | 2004-03-24 | 2004-03-24 | Gradient heat barrier coat of adhesive layer in variational changed component formed through physical vapor deposition of electron beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410029705 CN1219002C (en) | 2004-03-24 | 2004-03-24 | Gradient heat barrier coat of adhesive layer in variational changed component formed through physical vapor deposition of electron beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563213A CN1563213A (en) | 2005-01-12 |
| CN1219002C true CN1219002C (en) | 2005-09-14 |
Family
ID=34480975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410029705 Expired - Fee Related CN1219002C (en) | 2004-03-24 | 2004-03-24 | Gradient heat barrier coat of adhesive layer in variational changed component formed through physical vapor deposition of electron beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1219002C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200126B (en) * | 2007-12-12 | 2010-11-17 | 哈尔滨工业大学 | Thermal-barrier coating and method for making same |
| CN101876061B (en) * | 2009-12-04 | 2012-01-25 | 北京科技大学 | Method for forming strong combination thermal barrier coating |
| CN103966556B (en) * | 2014-05-09 | 2016-03-30 | 北京航空航天大学 | A kind of method and apparatus realizing ion-plating deposition MCrAlX protective coating |
| CN108468011B (en) * | 2018-03-15 | 2020-04-14 | 北京矿冶科技集团有限公司 | Gradient thermal barrier coating with continuously-changed interface components of double ceramic layers and preparation method thereof |
| CN113463040A (en) * | 2021-06-30 | 2021-10-01 | 中国航发动力股份有限公司 | Thermal barrier coating process of deposited TGO layer |
| CN114959561B (en) * | 2022-06-29 | 2024-02-27 | 中国航发动力股份有限公司 | MCrAlX bonding layer with gradient Al content change and preparation method thereof |
-
2004
- 2004-03-24 CN CN 200410029705 patent/CN1219002C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1563213A (en) | 2005-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102094170B (en) | Zirconium oxide thermal barrier coating for turbine buckets of gas turbine and preparation method thereof | |
| CN207313693U (en) | Composite thick film based on DLC film | |
| CN103590008B (en) | One is coated with interlayer in TiAl alloy and MCrAlY and prepares Al 2o 3the method of diffusion barrier | |
| CN104746030A (en) | Method for improving bonding strength of hard alloy and diamond coating | |
| CN113061844B (en) | Preparation process of superhard high-temperature-resistant Ta-C coating | |
| KR20190055002A (en) | Zirconium alloy cladding with improved oxidization resistance at high temperature and method for manufacturing the same | |
| CN1219002C (en) | Gradient heat barrier coat of adhesive layer in variational changed component formed through physical vapor deposition of electron beam | |
| CN1844445A (en) | Method for depositing thermal barrier coating of porous dentrite ceramic layer by electron beam physical vapor deposition process | |
| CN110965035A (en) | Accident fault-tolerant zirconium cladding tube protective coating and preparation method and application thereof | |
| CN110144554A (en) | The preparation method of the laser modified YSZ thermal barrier coating of high-temperature alloy surface NiCrAlY/YSZ/ | |
| CN1793419A (en) | Process for preparing composite thin plate with ceramic particle spreading strengthening intermetallic compound base | |
| CN103966615A (en) | Pt Ni Al bonding layer doped with binary trace active elements and capable of being completely oxidation resisting at 1200 DEG C and preparation method thereof | |
| CN1944706A (en) | Method for preparing Fe-6.5 wt% Si thin plate using continuous magnetic control sputtering physical gas phase depositing | |
| CN101148102B (en) | Carbon-base tungsten coating and its preparation method | |
| CN1274879C (en) | Oceanic atmosphere corrosion resistant thermal barrier coating | |
| CN1250765C (en) | Thermal barrier coating suitable for nickel-based high-temperature alloy with high Mo content | |
| JP3723366B2 (en) | Substrate with ITO transparent conductive film and method for forming ITO transparent conductive film | |
| CN111850484A (en) | Device and method for preparing tough amorphous carbon-based multiphase hybrid film | |
| CN1621556A (en) | High sintering -resistant thermal barrier coating with high thermal stability and low thermal conductivity | |
| CN1757787A (en) | Preparation method of intermetallic compound/metal multilayer plate | |
| CN115679258A (en) | High-hardness wear-resistant CrAlBN-based composite coating and preparation method thereof | |
| CN110656313B (en) | Zirconium aluminum nitride/aluminum oxide composite coating firmly combined with hard alloy and preparation method thereof | |
| CN102586724B (en) | Method for diffusing and plating aluminum on surface of titanium-aluminium intermetallic compound | |
| CN1506492A (en) | Chromium oxide coating preparing process | |
| CN113430488B (en) | Nano composite coating for nuclear reactor fuel cladding and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |