CN103911581B - A kind of preparation method of the Zirconium oxide heat barrier coating based on roll - Google Patents
A kind of preparation method of the Zirconium oxide heat barrier coating based on roll Download PDFInfo
- Publication number
- CN103911581B CN103911581B CN201410111086.5A CN201410111086A CN103911581B CN 103911581 B CN103911581 B CN 103911581B CN 201410111086 A CN201410111086 A CN 201410111086A CN 103911581 B CN103911581 B CN 103911581B
- Authority
- CN
- China
- Prior art keywords
- roll
- zirconium oxide
- laser
- barrier coating
- plasma spraying
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 28
- 239000011248 coating agent Substances 0.000 title claims abstract description 27
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910001928 zirconium oxide Inorganic materials 0.000 title claims abstract description 17
- 230000004888 barrier function Effects 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000007750 plasma spraying Methods 0.000 claims abstract description 21
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 238000005488 sandblasting Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 7
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000007788 roughening Methods 0.000 claims abstract description 6
- 238000010309 melting process Methods 0.000 claims abstract description 5
- 230000005284 excitation Effects 0.000 claims abstract description 4
- 238000005496 tempering Methods 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000009997 thermal pre-treatment Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000003245 working effect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 13
- 239000012720 thermal barrier coating Substances 0.000 description 12
- 238000005096 rolling process Methods 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 238000005524 ceramic coating Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Abstract
Based on a preparation method for the Zirconium oxide heat barrier coating of roll, it mainly carries out preheating, cleaning, sandblasting roughening treatment to the roll processed; With plasma spraying equipment, NiCoCrAlY powdered alloy is sprayed on roller surface, forming thickness is 0.1-0.2mm transition layer, carry out with the Zirconium oxide powder of massfraction 8% stabilized with yttrium oxide the ceramic layer that air plasma spraying thickness is 0.3-0.4mm, adopt 2000w direct current quick responsive excitation cross-flow type CO
2re melting process is carried out on laser apparatus microstructure of plasma sprayed surface, and pressure is 0.25MPa, and regulate laser power scope to be 350-600w, defocusing amount is 40-60mm, and scanning speed is 3-8mm/s, and spot diameter is 4.5mm, and laser is than can be 37.2J/mm
2, overlapping rate is 30%.The present invention can effectively reduce the temperature of roll surface, extends the work-ing life of roll, improves productivity effect.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of preparation method being applicable to roll coating especially.
Technical background
When carrying out heavy reduction rolling to the heavy slab with liquid core, because strand is on two cold-zone temperature higher (about 1000 DEG C, surface), casting speed lower (being less than 1m/min), draught is large, each rolling cycle roll surface and strand duration of contact in nearly 10 seconds, it is 60 times of common roll and high temperature slab duration of contact, roller body surface is caused to be subject to serious thermal fatigue and to chap, under the comprehensive action of thermal stresses and mechanical stress, crackle is expanded to depths, causes roller to be scrapped in the short period of time.
At present, adopt plasma spraying nano zircite (ZrO2-8%Y2O3) reunion powder to prepare nanometer zirconia heat barrier coating, and utilize 2000w direct current quick responsive excitation cross-flow type CO
2laser apparatus carries out re melting process to it.Thermal barrier coating after remelting is carried out to the performance analysiss such as weave construction, oxidation kinetics, High Temperature Hot-corrosion Behaviorof kinetics, high temperature insulating performance, anti-thermal shock and bonding strength.As " application and development of Zirconium oxide heat barrier coating in aircraft engine " ([J]. aircraft engine .2010,36 (06): 53-57, Sun Fubo, Tu Quan .) describe the characteristic of Zirconium oxide heat barrier coating (TBCs), preparation method and feature thereof, analyze the applicable cases of TBCs in aircraft engine, and prospect has been made to the development of TBCs technology." aircraft engine thermoscreen plasma spray zirconia (PSZ) thermal barrier coating technical study " ([J]. aeronautical technology technology .1995 (05), Shen Xiao town, Wang Xiaodong, Liu Huigang, Deng .) describe in certain new work engine after-burner thermoscreen upper plasma spraying Zirconium oxide heat barrier coating technique, introduce thermal shock performance of coatings, high temperature oxidation resistance and effect of heat insulation." research of laser remolten plasma spraying nanometer zirconia heat barrier coating microstructure and property " ([D]. Southwest Jiaotong University, 2009, Hao Yunfei .)
Above-mentioned thermal barrier coating is used for aircraft engine, utilize thermal barrier coating high-melting-point, the features such as lower thermal conductivity, low-E and high-reflectivity, be sprayed on the surface of engine thermal end pieces (as burner inner liner, after-burner, turbine blade), parts and high-temperature fuel gas are completely cut off and comes, to reduce the working temperature of parts, and ensure that parts are from the high temperature corrosion of combustion gas and erosion, effectively improve the work-ing life of hot-end component.But the relevant report that this thermal barrier coating is applied to roll is considerably less, because the thermal shocking effect in the operation of rolling, thermal barrier coating is very easily destroyed loses effect of heat insulation, merely process the requirement when bonding strength between coating and roller substrate obtained can not reach the work of coating roll by plasma spray coating process.
Summary of the invention
The object of the present invention is to provide one can improve roll surface hardness, wear resistance, effectively can reduce the preparation method of the Zirconium oxide heat barrier coating based on roll of roll surface temperature.The present invention take mainly roll as matrix, prepares thermal barrier coating at body surface through plasma spraying and laser remolten, and the present invention is mainly used in continuous casting machine tension leveling roller, hot rolling mill roll, the large pressure rolling mill roll of liquid core.
Preparation method of the present invention is as follows:
1, modulation treatment
Carry out thermal pretreatment to the roll processed, 860 DEG C of-890 DEG C of heating and thermal insulations two hours, cool to 740 DEG C-760 DEG C insulations four hours, stove is as cold as about 500 DEG C and comes out of the stove; Quench, temperature is 1020 DEG C-1050 DEG C, insulation 30min, and oil cooling is to room temperature; Tempering temperature is 530 DEG C-560 DEG C, tempering two hours, tempering twice.
2, clean
The treated roll acetone of step 1 is cleaned, to remove the greasy dirt on its surface; In order to improve the bonding strength of tack coat and matrix metal, after roll has cleaned, sandblasting roughening treatment should be carried out in time; Interval time to next step spraying tack coat after sandblasting is more short better, and the timed interval is the longest does not exceed two hours.
3, plasma spraying
With plasma spraying equipment, NiCoCrAlY powdered alloy good for proportioning is in advance sprayed on roller surface; form transition layer; argon shield is carried out in spraying process; adhesive layer thickness 0.1-0.2mm; then the Zirconium oxide powder of massfraction 8% stabilized with yttrium oxide is adopted to carry out air plasma spraying ceramic top layer, ceramic layer thickness 0.3-0.4mm.
The mass percent of described NiCoCrAlY powdered alloy composition is Ni:72-76.5, Co:5-6, Cr:14-16, Al:4-5.5, Y:0.5.
4, laser remolten
In order to improve the bonding strength of coating and matrix, laser apparatus remelting is carried out again in the basis of Thermal Barrier Coating Layers Prepared By Plasma Spraying.Adopt 2000w direct current quick responsive excitation cross-flow type CO
2re melting process is carried out on the plasma spraying surface of laser apparatus to step 3; argon gas is adopted to carry out cooling and protecting in reflow process; pressure is 0.25MPa; laser power scope is regulated to be 350-600w; defocusing amount is 40-60mm; scanning speed is 2-4mm/s, and spot diameter is 4.5mm, and laser ratio can be about 30-40J/mm
2, overlapping rate is 30%, and best laser power is 505w, and defocusing amount is 50mm, and scanning speed is 3mm/s, and spot diameter is 4.5mm, and laser is than can be 37.2J/mm
2, overlapping rate is 30%, can obtain the coating that densification, bonding strength are higher, meet needs of production after laser remolten processing, improve roll work-ing life.
The powdered alloy of transition layer of the present invention and the composition of ceramic layer and coating structure form gradual change, form gradient heat expansion coating, thus this gradient heat expansion coating also achieves the continuous transition of thermal expansivity due to the consecutive variations macroscopically achieving composition, reduce or eliminate stress concentration effect, effectively can alleviate the thermal stresses in coating, effectively postpone the formation of crackle in coating and reduced the spreading rate of crackle, there is higher thermal shock resistance.
Ceramic layer can make to produce metallurgical reaction between coating and matrix through the thermal barrier coating of laser remolten plasma spraying, makes to have enough bonding strengths therebetween, meets the demand in the operation of rolling.
The present invention compared with prior art tool has the following advantages:
1, the interpolation of Zirconium oxide heat barrier coating can effectively reduce the temperature of roll surface, and temperature drop can reach 200 DEG C, the reduction of material physical chemistry performance reducing the thermal stresses that produced by temperature to a certain extent and cause due to temperature factor.
2, the roll surface of Zirconium oxide heat barrier coating roll has the hardness higher than matrix and wear resistance, qualitative analysis, and microhardness at least can improve 38%, and effectively can improve the work-ing life of roll, steel rolling amount can improve more than 50%, significantly improves productivity effect.
Embodiment
Embodiment 1
The continuous casting machine tension leveling roller being 9Cr2MoV by the material processed carries out modulation treatment, is preheated to 860 DEG C, is incubated two hours, cools to 740 DEG C, and be incubated four hours, stove is as cold as about 500 DEG C and comes out of the stove; Quenching temperature 1020 DEG C, insulation 30min, oil cooling is to room temperature; Tempering temperature 530 DEG C, tempering two hours, tempering twice.
Breaker roll carries out acetone cleaning, sandblasting roughening treatment, then argon shield plasma spraying is carried out, coating quality mark is the NiCoCrAlY powdered alloy of Ni:76.5, Co:5, Cr:14, Al:4, Y:0.5, be prepared into the transition layer that thickness is 0.1mm, then adopt the Zirconium oxide powder of massfraction 8% stabilized with yttrium oxide to carry out air plasma spraying, be prepared into the ceramic layer that thickness is 0.3mm; Carry out laser remolten to ceramic coating afterwards, laser power is 350w, and defocusing amount is 40mm, and scanning speed is 2.2mm/s, and spot diameter is 4.5mm, and laser is than can be 35.4J/mm
2, overlapping rate is 30%.
Embodiment 2
Be that the hot rolling mill roll of 60SiMnMo is preheated to 875 DEG C by the material processed, be incubated two hours, cool to 750 DEG C, be incubated four hours, stove is as cold as about 500 DEG C and comes out of the stove; Quenching temperature 1040 DEG C, insulation 30min, oil cooling is to room temperature; Tempering temperature 540 DEG C, tempering two hours, tempering twice.
Breaker roll carries out acetone cleaning, sandblasting roughening treatment, then argon shield plasma spraying is carried out, coating quality mark is the NiCoCrAlY powdered alloy of Ni:74, Co:5.5, Cr:15, Al:5, Y:0.5, be prepared into the transition layer that thickness is 0.15mm, then adopt the Zirconium oxide powder of massfraction 8% stabilized with yttrium oxide to carry out air plasma spraying, be prepared into the ceramic layer that thickness is 0.35mm; Carry out laser remolten to ceramic coating afterwards, laser power is 505w, and defocusing amount is 50mm, and scanning speed is 3mm/s, and spot diameter is 4.5mm, and laser is than can be 37.2J/mm
2, overlapping rate is 30%.
Embodiment 3
Be that the large pressure rolling mill roll of liquid core of H13 is preheated to 890 DEG C by the material processed, be incubated two hours, cool to 760 DEG C, be incubated four hours, stove is as cold as about 500 DEG C and comes out of the stove; Quenching temperature 1050 DEG C, insulation 30min, oil cooling is to room temperature; Tempering temperature 560 DEG C, tempering two hours, tempering twice.
Breaker roll carries out acetone cleaning, sandblasting roughening treatment, then argon shield plasma spraying is carried out, coating quality mark is the NiCoCrAlY powdered alloy of Ni:72, Co:6, Cr:16, Al:5.5, Y:0.5, be prepared into the transition layer that thickness is 0.2mm, then adopt the Zirconium oxide powder of massfraction 8% stabilized with yttrium oxide to carry out air plasma spraying, be prepared into the ceramic layer that thickness is 0.4mm; Carry out laser remolten to ceramic coating afterwards, laser power is 600w, and defocusing amount is 60mm, and scanning speed is 3.6mm/s, and spot diameter is 4.5mm, and laser is than can be 37J/mm
2, overlapping rate is 30%.
Claims (2)
1., based on a preparation method for the Zirconium oxide heat barrier coating of roll, it is characterized in that:
(1) carry out thermal pretreatment to the roll processed, 860 DEG C of-890 DEG C of heating and thermal insulations two hours, cool to 740 DEG C-760 DEG C insulations four hours, stove is as cold as about 500 DEG C and comes out of the stove; Quench, temperature is 1020 DEG C-1050 DEG C, insulation 30min, and oil cooling is to room temperature; Tempering temperature is 530 DEG C-560 DEG C, tempering two hours, tempering twice;
(2) sandblasting roughening treatment is carried out after the treated roll acetone of step (1) being cleaned; Interval time to next step spraying transition layer after sandblasting is more short better, and the timed interval is the longest does not exceed two hours;
(3) with plasma spraying equipment, NiCoCrAlY powdered alloy good for proportioning is in advance sprayed on roller surface, form transition layer, argon shield is carried out in spraying process, transition region thickness 0.1-0.2mm, then the Zirconium oxide powder of massfraction 8% stabilized with yttrium oxide is adopted to carry out air plasma spraying ceramic top layer, ceramic layer thickness 0.3-0.4mm; The mass percent of described NiCoCrAlY powdered alloy composition is Ni:72-76.5, Co:5-6, Cr:14-16, Al:4-5.5, Y:0.5;
(4) 2000W direct current quick responsive excitation cross-flow type CO is adopted
2re melting process is carried out on the plasma spraying surface of laser apparatus to step (3); argon gas is adopted to carry out cooling and protecting in reflow process; pressure is 0.25MPa; laser power scope is regulated to be 350-600W; defocusing amount is 40-60mm; scanning speed is 2-4mm/s, and spot diameter is 4.5mm, and laser is than can be 30-40J/mm
2, overlapping rate is 30%.
2. the preparation method of a kind of Zirconium oxide heat barrier coating based on roll according to claim 1, is characterized in that: described re melting process, and laser power is 505W, defocusing amount is 50mm, scanning speed is 3mm/s, and spot diameter is 4.5mm, and laser is than can be 37.2J/mm
2, overlapping rate is 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410111086.5A CN103911581B (en) | 2014-03-24 | 2014-03-24 | A kind of preparation method of the Zirconium oxide heat barrier coating based on roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410111086.5A CN103911581B (en) | 2014-03-24 | 2014-03-24 | A kind of preparation method of the Zirconium oxide heat barrier coating based on roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103911581A CN103911581A (en) | 2014-07-09 |
| CN103911581B true CN103911581B (en) | 2016-03-02 |
Family
ID=51037578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410111086.5A Expired - Fee Related CN103911581B (en) | 2014-03-24 | 2014-03-24 | A kind of preparation method of the Zirconium oxide heat barrier coating based on roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103911581B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775087B (en) * | 2014-12-05 | 2017-08-25 | 襄阳航泰动力机器厂 | A kind of preparation method of metal composite ceramal thermal barrier coating |
| CN104532164B (en) * | 2014-12-19 | 2016-10-26 | 芜湖金龙模具锻造有限责任公司 | A kind of preparation method of modified form cold roll |
| CN105349738A (en) * | 2015-11-20 | 2016-02-24 | 常熟市永达化工设备厂 | Corrosion resistance thermal treatment method for steel |
| CN105839061B (en) * | 2016-03-28 | 2018-11-09 | 南京航空航天大学 | The NiCoCrAlY/ZrO on gamma-TiAl alloy surface2Composite coating and preparation method |
| CN105861976B (en) * | 2016-03-29 | 2019-05-28 | 常州大学 | One kind preparing the technical method of Ti (CN) coating in stainless steel surface |
| CN109023315A (en) * | 2018-10-23 | 2018-12-18 | 中北大学 | The preparation method of titanium alloy surface high bond strength thermal barrier coating |
| CN109440044A (en) * | 2018-11-30 | 2019-03-08 | 昆明理工大学 | A kind of preparation method of porous wear-resistant thermal Sperayed Ceramic Coatings |
| CN110102576B (en) * | 2019-06-15 | 2021-06-08 | 山东宏杰自动化设备有限公司 | Cross wedge rolling die device |
| CN110551964A (en) * | 2019-10-24 | 2019-12-10 | 山东上运激光科技有限公司 | Method for changing spray ionized gas |
| CN112962050A (en) * | 2021-03-07 | 2021-06-15 | 湖南大学 | Method for improving high temperature resistance and corrosion resistance of thermal barrier coating |
| CN113862672B (en) * | 2021-09-29 | 2023-10-31 | 内蒙金属材料研究所 | Preparation method of tungsten electrode for fused salt electrolysis method |
| CN115058564A (en) * | 2022-05-25 | 2022-09-16 | 新疆八一钢铁股份有限公司 | Manufacturing method of withdrawal and straightening machine roller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754903A (en) * | 1970-09-15 | 1973-08-28 | United Aircraft Corp | High temperature oxidation resistant coating alloy |
| CN1122377A (en) * | 1994-06-24 | 1996-05-15 | 普拉塞尔·S·T·技术有限公司 | A process for producing carbide particles dispersed in a mcraly-based coating |
-
2014
- 2014-03-24 CN CN201410111086.5A patent/CN103911581B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754903A (en) * | 1970-09-15 | 1973-08-28 | United Aircraft Corp | High temperature oxidation resistant coating alloy |
| CN1122377A (en) * | 1994-06-24 | 1996-05-15 | 普拉塞尔·S·T·技术有限公司 | A process for producing carbide particles dispersed in a mcraly-based coating |
Non-Patent Citations (3)
| Title |
|---|
| 常规和纳米ZrO2－7wt％Y2O3等离子喷涂热障层及激光重熔后的抗热震性能;王东生 等;《材料保护》;20120531;第45卷(第5期);第一页右栏第2段 * |
| 激光表面重熔对ZrO2－8wt％Y2O3热障涂层组织与抗热震性能的影响;王超 等;《材料热处理学报》;20110531;第32卷(第5期);第二页左栏第2段 * |
| 激光重熔等离子体喷涂纳米氧化锆热障涂层组织与性能研究;郝云飞;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20100215(第02期);摘要，说明书第12页第5-6段，第14页第1段，第16页第1段，第17页第1段、表2-4，第18页第1段，第24页第1段，第68页第2段、表4-2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103911581A (en) | 2014-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103911581B (en) | A kind of preparation method of the Zirconium oxide heat barrier coating based on roll | |
| Fan et al. | Influence of columnar grain microstructure on thermal shock resistance of laser re-melted ZrO2-7 wt.% Y2O3 coatings and their failure mechanism | |
| CN103009704B (en) | A kind of nanometer/class column crystal mixed structure thermal barrier coating and preparation method thereof | |
| CN102465294B (en) | Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area | |
| Ahmadi-Pidani et al. | Improving the thermal shock resistance of plasma sprayed CYSZ thermal barrier coatings by laser surface modification | |
| CN104385703B (en) | Complex gradient coating that a kind of blade surface is repaired and preparation method thereof | |
| Fan et al. | The role of the surface morphology and segmented cracks on the damage forms of laser re-melted thermal barrier coatings in presence of a molten salt (Na2SO4+ V2O5) | |
| CN104928607B (en) | A kind of coating production for improving thermal barrier coating and basal body binding force | |
| CN103805934B (en) | A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding | |
| CN103614687B (en) | A kind of preparation technology of continuous casting crystallizer copper plate surface cermet coating | |
| CN106148876B (en) | A kind of novel aluminum alloy die-casting die surface peening coating and preparation method thereof | |
| CN111593341B (en) | High-performance thermal barrier coating of heavy gas turbine blade and multi-process combined preparation method thereof | |
| CN109266997A (en) | A kind of metal works duplex coating and preparation method thereof suitable for hot environment | |
| CN104148806A (en) | Laser rapid repairing method for high chromium cast steel roller surface layer fatigue micro cracks | |
| RU2567764C2 (en) | High-power plasma evaporation of heat-insulating coating on gas turbine blades and device to this end | |
| CN104561994A (en) | Laser surface cladding method for copper roller of metal belt forming machine | |
| CN106191853A (en) | A kind of wear resistant friction reducing cermet composite coating technique of hot die steel | |
| CN104195362A (en) | Preparation method of high-boron and wear-resistant alloy | |
| CN102424944A (en) | Method for remelting ternary boride metal ceramic gradient coating by using laser | |
| CN110592523A (en) | Method for improving bonding strength of thermal spraying coating and metal substrate | |
| ZHANG et al. | Microstructure and wear resistance of Ni-based WC coating by ultra-high speed laser cladding | |
| CN112593042A (en) | High-temperature protective coating for end face of oxygen lance nozzle and preparation method thereof | |
| Vencl | OptimisatiOn Of the depOsitiOn parameters Of thick atmOspheric plasma spray cOatings | |
| CN104250802B (en) | Process for performing laser cladding of superhard high speed steel by hot rolling of stretch reducing roller of seamless steel pipe | |
| CN104032256B (en) | A kind of preparation method of wear resistant corrosion resistant ni base alloy coating |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |