CN102627405A - Microcrystal glass coating applied to nickel based alloy surface and preparation method thereof - Google Patents
Microcrystal glass coating applied to nickel based alloy surface and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a microcrystal glass coating applied to the nickel based alloy surface and a preparation method thereof. The microcrystal glass coating is prepared by the raw materials in parts by weight as follows: 30-40 parts of silicon dioxide, 10-15 parts of magnesium oxide, 15-25 parts of aluminum oxide, 10-15 parts of titanium dioxide, 5-15 parts of boron oxide, 10-20 parts of sodium carbonate or 15-25 parts of sodium bicarbonate and 0.5-1.5 parts of nickel. The preparation method for the microcrystal glass coating comprises the steps as follows: preparing the raw materials, melting the raw materials, preparing glass melting blocks, preparing glass slurry, preprocessing the nickel based high temperature alloy surface, coating the glass slurry and nucleating and crystallizing the glass coating. The raw materials for preparing the microcrystal glass coating are low in cost, the process is simple and easy to implement, the high temperature oxidation resistance performance of the coating is excellent, and the coating is tightly bonded with a basic body.
Description
Technical field
The present invention relates to protective coating technique, specifically, relate to a kind of corrosion-resistant sytull coating of high-temperature oxidation resistant that is applied to the nickel-base alloy surface and preparation method thereof.
Background technology
Nickel base superalloy is the employed main raws of various thermal parts such as aircraft engine, and simultaneously, it also obtains widespread use in combustion gas wheel, thermal power generation and nuclear industry field.Along with the development of science and industrial technology, the use temperature of the partial component in these fields is improving constantly.Especially at aerospace field; For the maneuverability that improves aircraft and economic benefit etc.; Require to increase the thrust-weight ratio of turbine engine or push away preceding ratio, the use temperature of hot-end component requires increasingly high, the ultimate temperature of reached a high temperature alloy and monocrystal material.With the heating part of internal combustion turbine such as nozzle, blade, combustion chamber is example, and they are in the severe environment such as high temperature oxidation and high temperature gas flow erosion, and withstand temp has surpassed the ultimate temperature (1075 ℃) that high temperature nickel alloy is used up to 1100 ℃.Therefore, it is very necessary to improve the performance such as high temperature resistant of nickel base superalloy parts.
Discover, the resistant to elevated temperatures advantages of the HS of metal, H.T. and the pottery prepared thermal barrier coating that goes out that gets up can be addressed the above problem.Thermal barrier coating is one deck ceramic coating, and it is deposited on the surface of tack coat, and base material is played heat-blocking action, makes can at high temperature move with its device of processing (like the engine turbine blade).Experiment shows that thermal barrier coating has the following advantages when on gas turbine engine, using: the temperature of combustion gas can be improved in (1) under the temperature-resistant situation of matrix metal, thereby raises the efficiency and the life-span; (2) thermal barrier coating can make cooling air reduce, and for the raising of mover overall pressure ratio provides condition, and the raising of mover overall pressure ratio can significantly reduce fuel oil consumption; (3) thermal barrier coating can slow down thermophoresis, reduces thermal fatigue, has oxidation-resistance, characteristics such as corrosion-resistant and wear-resistant simultaneously.
At present, MCrAlY type coating is the most extensive in the application in this field as tack coat, and is also comparatively active to the research of MCrAlY type coating.
For example, Chinese invention patent CN102115866A discloses a kind of nickel base superalloy and has used the NiCrAlY coating, and said coating satisfies following requirement: contain the Cr of 8wt%-25wt%, the Al of 30wt%-40wt% and the Y of 0.3wt%-1.5wt%.This coating can effectively improve the work-ing life of superalloy part, can in the environment below 1100 ℃, effectively improve the antioxidant property of matrix, below 900 ℃, contains Cl
-The thermal etching environment in, improve the performance of matrix corrosion and heat resistant.
Chinese invention patent CN1536033 discloses a kind of NiCoCrAlYSiB corrosion and heat resistant high-temperature protection coating and preparation method thereof.The content of each element is Co:28-35wt.% in the said coating, Cr:17～23wt.%, Al:5～12wt.%, Y:0.1～0.6wt.%, Si:0.9～1.1wt.%, B:0.02～0.04wt.%, Ni: surplus.Adopt arc ion plating (aip) to prepare this protective coating, the corrosion and heat resistant of gained coating and high temperature oxidation stability are good, and production efficiency is high.
But the shortcoming of above-mentioned coating is that raw materials cost is high, complex process, and the growth limitation of TGO layer the work-ing life of coating.
Summary of the invention
To the deficiency of prior art, one of the object of the invention provides a kind of sytull coating that is applied to the nickel-base alloy surface; The raw material for preparing this sytull coating consists of: the silicon-dioxide of 30-40 mass parts; The Natural manganese dioxide of 10-15 mass parts, the aluminum oxide of 15-25 mass parts, the titanium oxide of 10-15 mass parts; The boron oxide of 5-15 mass parts, the sodium hydrogencarbonate of the yellow soda ash of 10-20 mass parts or 15-25 mass parts and the nickel of 0.5-1.5 mass parts.
Two of the object of the invention provides a kind of preparation method of sytull coating, comprises the steps:
(1) preparation of raw material:
Take by weighing desired raw material, grind the back thorough mixing;
(2) founding of raw material:
Mixing raw material is placed crucible, put into retort furnace then and be warming up to 1300-1500 ℃ of heating, obtain glass melt, heat preservation for standby use;
(3) preparation of glass frit:
Step (2) gained glass melt is poured in the steel plate model that is preheated to 500-600 ℃, put into temperature immediately and be 500-600 ℃ retort furnace, cool to room temperature with the furnace, obtain glass frit;
(4) preparation of glass slip:
Step (3) gained glass frit is crushed to the 60-100 order, pours in the ball grinder, in 100 mass parts glass frits; The glass powder that adds the 15-20 mass parts; The corundum ball of the deionized water of 25-30 mass parts and 50-70 mass parts ball milling 10-30 minute, adds the nickel powder of 0.5-1.5 mass parts then; Continue ball milling and obtain the glass slip, ageing is for use;
(5) pre-treatment on nickel-base alloy surface:
With sand paper that the nickel-base alloy surface finish is level and smooth, clean with buck earlier, use washed with de-ionized water then, and dry;
(6) coating of glass slip:
Step (4) gained glass slip is coated in the surface of step (5) gained alloy, and dry;
(7) coring of glass coating and crystallization are handled:
The nickel-base alloy that step (6) gained is scribbled the glass slurry coating places retort furnace; Under 1100-1150 ℃ temperature, heat 4-6min, take out in the retort furnace that is transferred to 300-500 ℃ then, cool to the glass coating that room temperature obtains containing a small amount of crystallite with the furnace; Again temperature in the retort furnace is risen to 800-850 ℃; Insulation 3-5h carries out coring and crystallization and handles, and promptly gets required sytull coating.
Preferably, the described heat-up rate of step (2) is 10 ℃/min.
Preferably, the described soaking time of step (2) is 40-90min.
Preferably, the rotating speed of the said ball grinder of step (4) is 200-500 commentaries on classics/min, and the ball milling time behind the adding nickel powder is 8-12 hour.
Preferably, the thickness of the said glass slurry coating of step (6) is 1mm-1.5mm.
Beneficial effect of the present invention is: the prescription of sytull coating according to the invention and preparation method; Abundant raw material, cost is low, and is simple for process; Sytull coating in the nickel base superalloy surface-coated; Can effectively improve the resistance of oxidation of matrix, and coating and matrix bond are firm, have good protective value.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed description, should be pointed out that following embodiment does not constitute the restriction to protection domain of the present invention.
Embodiment 1
(1) take by weighing 30g silicon-dioxide with electronic balance, 10g Natural manganese dioxide, the 25g aluminum oxide, 10g titanium oxide, the 15g boron oxide, 10g yellow soda ash grinds the back thorough mixing;
(2) mixing raw material is placed corundum crucible, put into retort furnace then, be warming up to 1300 ℃, obtain glass melt, insulation 90min with the temperature rise rate of V=10 ℃/min;
(3) step (2) gained glass melt is poured in the steel plate model that is preheated to 500 ℃, put into temperature immediately and be 500 ℃ retort furnace, cool to room temperature with the furnace, obtain glass frit;
(4) step (3) gained glass frit is crushed to the 60-100 order, pours in the ball grinder, add 15g glass powder, 25g deionized water and 50g corundum ball; Ball milling 10 minutes, the rotating speed of ball grinder are 500 commentaries on classics/min, add the 1.5g nickel powder then; Continued ball milling 8 hours, and obtained the glass slip, ageing is for use;
(5) get nickel base superalloy DZ125, with sand paper that the alloy surface polishing is level and smooth, can see uniform striped with microscopic examination; Alloy sample is put into 60 ℃ buck ultrasonic cleaning 10min, take out the buck ultrasonic cleaning 10min put into 80 ℃ again after, be transferred to deionized water for ultrasonic and clean 30min altogether 3 times, dry then;
(6) step (5) gained nickel-base alloy horizontal fixed is placed; Dip in thin brush and to get the glass slip and evenly be coated on nickel alloy surfaces; Treat that the moisture 5min continued of volatilizing naturally brushes to original coat-thickness and reach 1mm; Original being coated with of gained is placed on seasoning 15h under the semiclosed condition, transfers in the loft drier and continue dry 5h down at 80 ℃.
(7) nickel-base alloy that step (6) gained is scribbled glass coating places retort furnace; Under 1100 ℃ temperature, heat 6min, take out in the retort furnace that is transferred to 500 ℃ then, cool to the glass coating that room temperature obtains containing a small amount of crystallite with the furnace; Again temperature in the retort furnace is risen to 800 ℃; Insulation 5h carries out coring and crystallization and handles, and promptly gets required sytull coating.
Embodiment 2
(1) take by weighing 40g silicon-dioxide with electronic balance, 15g Natural manganese dioxide, the 15g aluminum oxide, 10g titanium oxide, the 5g boron oxide, the 15g sodium hydrogencarbonate grinds the back thorough mixing;
(2) mixing raw material is placed corundum crucible, put into retort furnace then, be warming up to 1500 ℃, obtain glass melt, insulation 40min;
(3) step (2) gained glass melt is poured in the steel plate model that is preheated to 600 ℃, put into temperature immediately and be 600 ℃ retort furnace, make glass melt cool to room temperature with the furnace, obtain glass frit;
(4) step (3) gained glass frit is crushed to the 60-100 order, pours in the ball grinder, add 20g glass powder, 30g deionized water and 70g corundum ball; Ball milling 30 minutes, the rotating speed of ball grinder are 200 commentaries on classics/min, add the 0.5g nickel powder then; Continued ball milling 12 hours, and obtained the glass slip, ageing is for use;
(5) get nickel base superalloy DSM11, with sand paper that the alloy surface polishing is level and smooth, can see uniform striped with microscopic examination; Alloy sample is put into 80 ℃ buck ultrasonic cleaning 20min, be transferred to deionized water for ultrasonic and clean 30min altogether 3 times, dry then;
(6) step (5) gained nickel-base alloy horizontal fixed is placed; Dip in thin brush and to get the glass slip and evenly be coated on the nickel-base alloy surface; Treat that the moisture 10min continued of volatilizing naturally brushes to original coat-thickness and reach 1.5mm; With the original coating seasoning of gained 15h, be transferred in the loft drier and continue dry 5h down at 80 ℃, remove most moisture;
(7) nickel-base alloy that step (6) gained is scribbled glass coating places retort furnace; Under 1150 ℃ temperature, heat 4min, take out in the retort furnace that is transferred to 300 ℃ then, cool to the glass coating that room temperature obtains containing a small amount of crystallite with the furnace; Again temperature in the retort furnace is risen to 850 ℃; Insulation 3h carries out coring and crystallization and handles, and promptly gets required sytull coating.
Embodiment 3
(1) take by weighing 33g silicon-dioxide with electronic balance, 10g Natural manganese dioxide, the 15g aluminum oxide, 12g titanium oxide, the 10g boron oxide, 20g yellow soda ash grinds the back thorough mixing;
(2) mixing raw material is placed corundum crucible, put into retort furnace then, be warming up to 1350 ℃, obtain glass melt, insulation 60min with the temperature rise rate of V=10 ℃/min;
(3) step (2) gained glass melt is poured in the steel plate model that is preheated to 550 ℃, put into temperature immediately and be 550 ℃ retort furnace, cool to room temperature with the furnace, obtain glass frit;
(4) step (3) gained glass frit is crushed to the 60-100 order, pours in the ball grinder, in 100 mass parts glass frits; The glass powder that adds 15 mass parts, the corundum ball of the deionized water of 30 mass parts and 60 mass parts, ball milling 20 minutes; The rotating speed of ball grinder is 400 commentaries on classics/min, in 100 mass parts glass frits, adds the nickel powder of 1.0 mass parts; Continued ball milling 10 hours, and obtained the glass slip, ageing is for use then;
(5) get nickel base superalloy M22, with sand paper that the alloy surface polishing is level and smooth, can see uniform striped with microscopic examination; Alloy sample is put into 70 ℃ buck ultrasonic cleaning 10min, take out the buck ultrasonic cleaning 10min put into 85 ℃ again after, be transferred to deionized water for ultrasonic and clean 3 times, dry then;
(6) step (5) gained nickelalloy horizontal fixed is placed; Dip in thin brush and to get the glass slip and evenly be coated on nickel alloy surfaces; Treat that the moisture 15min continued of volatilizing naturally brushes to original coat-thickness and reach 1.2mm, original being coated with of gained is placed in the loft drier at 100 ℃ of dry 6h down;
(7) nickel-base alloy that step (6) gained is scribbled glass coating places retort furnace; Under 1120 ℃ temperature, heat 5min, take out in the retort furnace that is transferred to 400 ℃ then, cool to the glass coating that room temperature obtains containing a small amount of crystallite with the furnace; Again temperature in the retort furnace is risen to 820 ℃; Insulation 4h carries out coring and crystallization and handles, and promptly gets required sytull coating.
Embodiment 4
(1) take by weighing 30g silicon-dioxide with electronic balance, 10g Natural manganese dioxide, the 15g aluminum oxide, 15g titanium oxide, the 5g boron oxide, the 25g sodium hydrogencarbonate grinds the back thorough mixing;
(2) mixing raw material is placed corundum crucible, put into retort furnace then, be warming up to 1400 ℃, obtain glass melt, insulation 80min;
(3) step (2) gained glass melt is poured in the steel plate model that is preheated to 580 ℃, put into temperature immediately and be 600 ℃ retort furnace, cool to room temperature with the furnace, obtain glass frit;
(4) step (3) gained glass frit is crushed to the 60-100 order, pours in the ball grinder, in 100 mass parts glass frits; The glass powder that adds 20 mass parts, the corundum ball of the deionized water of 25 mass parts and 70 mass parts, ball milling 25 minutes; The rotating speed of ball grinder is 300 commentaries on classics/min, in 100 mass parts glass frits, adds the nickel powder of 1.2 mass parts; Continued ball milling 9 hours, and obtained the glass slip, ageing is for use then;
(5) get nickel base superalloy DZ125, with sand paper that the alloy surface polishing is level and smooth, can see uniform striped with microscopic examination; Alloy sample is put into 90 ℃ buck ultrasonic cleaning 30min, be transferred to deionized water for ultrasonic and clean 3 times, dry then;
(6) step (5) gained nickel-base alloy horizontal fixed is placed; Dip in thin brush and to get the glass slip and evenly be coated on nickel alloy surfaces; Treat that the moisture 10min continued of volatilizing naturally brushes to original coat-thickness and reach 1.4mm, original being coated with of gained is placed in 8 loft drier at 80 ℃ of dry 10h down;
(7) nickel-base alloy that step (6) gained is scribbled glass coating places retort furnace; Under 1140 ℃ temperature, heat 6min, take out in the retort furnace that is transferred to 350 ℃ then, cool to the glass coating that room temperature obtains containing a small amount of crystallite with the furnace; Again temperature in the retort furnace is risen to 840 ℃; Insulation 3.5h carries out coring and crystallization and handles, and promptly gets required sytull coating.
Get nickel base superalloy sample that embodiment 1-4 is coated with the sytull coating respectively through 800 ℃ of thermal treatments; Get the nickel base superalloy DZ125 sample of uncoated sytull coating again; The ventilated environment that five kinds of sample weighings are placed on 1000 ℃ descends insulation 3h; Treat weighing once more behind the naturally cooling, calculate gain in weight, the result sees table 1.
Table 1
Can find out that from data shown in the table 1 after the coating sytull coating, the oxidation weight gain of sample obviously reduces, and explains that sytull coating according to the invention has good antioxidant property.
Claims (6)
1. one kind is applied to the surperficial sytull coating of nickel-base alloy; It is characterized in that the raw material for preparing this sytull coating consists of: the silicon-dioxide of 30-40 mass parts, the Natural manganese dioxide of 10-15 mass parts; The aluminum oxide of 15-25 mass parts; The titanium oxide of 10-15 mass parts, the boron oxide of 5-15 mass parts, the sodium hydrogencarbonate of the yellow soda ash of 10-20 mass parts or 15-25 mass parts and the nickel of 0.5-1.5 mass parts.
2. the preparation method of the described sytull coating of claim 1 is characterized in that, comprises the steps:
(1) preparation of raw material:
Take by weighing desired raw material, grind the back thorough mixing;
(2) founding of raw material:
Mixing raw material is placed crucible, put into retort furnace then and be warming up to 1300-1500 ℃ of heating, obtain glass melt, heat preservation for standby use;
(3) preparation of glass frit:
Step (2) gained glass melt is poured in the steel plate model that is preheated to 500-600 ℃, put into temperature immediately and be 500-600 ℃ retort furnace, cool to room temperature with the furnace, obtain glass frit;
(4) preparation of glass slip:
Step (3) gained glass frit is crushed to the 60-100 order, pours in the ball grinder, in 100 mass parts glass frits; The glass powder that adds the 15-20 mass parts; The corundum ball of the deionized water of 25-30 mass parts and 50-70 mass parts ball milling 10-30 minute, adds the nickel powder of 0.5-1.5 mass parts then; Continue ball milling and obtain the glass slip, ageing is for use;
(5) pre-treatment on nickel-base alloy surface:
With sand paper that the nickel-base alloy surface finish is level and smooth, clean with buck earlier, use washed with de-ionized water again, dry then;
(6) coating of glass slip:
Step (4) gained glass slip is coated in the surface of step (5) gained alloy, and dry;
(7) coring of glass coating and crystallization are handled:
The nickel-base alloy that step (6) gained is scribbled the glass slurry coating places retort furnace; Under 1100-1150 ℃ temperature, heat 4-6min, take out in the retort furnace that is transferred to 300-500 ℃ then, cool to the glass coating that room temperature obtains containing a small amount of crystallite with the furnace; Again temperature in the retort furnace is risen to 800-850 ℃; Insulation 3-5h carries out coring and crystallization and handles, and promptly gets required sytull coating.
3. the preparation method of sytull coating according to claim 2 is characterized in that, the described heat-up rate of step (2) is 10 ℃/min.
4. the preparation method of sytull coating according to claim 2 is characterized in that, the described soaking time of step (2) is 40-90min.
5. the preparation method of sytull coating according to claim 2 is characterized in that, the rotating speed of the said ball grinder of step (4) is 200-500 commentaries on classics/min, and the ball milling time behind the adding nickel powder is 8-12 hour.
6. the preparation method of sytull coating according to claim 2 is characterized in that, the thickness of the said glass slurry coating of step (6) is 1mm-1.5mm.
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Cited By (6)
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| CN103193387A (en) * | 2013-04-23 | 2013-07-10 | 大唐国际化工技术研究院有限公司 | Enamel material for 1Cr18Ni9Ti stainless steel surface and preparation method thereof |
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| CN105084762A (en) * | 2014-05-12 | 2015-11-25 | 中国科学院过程工程研究所 | Coating with high temperature thermal shock resistance and thermal etching resistance for stainless steel and heat resistant steel and preparation method thereof |
| CN106219986A (en) * | 2016-07-15 | 2016-12-14 | 福州大学 | A kind of devitrified glass of the corrosion of resistance to aluminum and preparation method thereof |
| CN109130362A (en) * | 2018-09-12 | 2019-01-04 | 张家港市沐和新材料技术开发有限公司 | A kind of high strength micro-crystalline glass-metallic composite |
| US11415004B2 (en) | 2020-12-09 | 2022-08-16 | Honeywell International Inc. | Corrosion and oxidation resistant coatings for gas turbine engines, and methods for producing the same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193387A (en) * | 2013-04-23 | 2013-07-10 | 大唐国际化工技术研究院有限公司 | Enamel material for 1Cr18Ni9Ti stainless steel surface and preparation method thereof |
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| CN105084762A (en) * | 2014-05-12 | 2015-11-25 | 中国科学院过程工程研究所 | Coating with high temperature thermal shock resistance and thermal etching resistance for stainless steel and heat resistant steel and preparation method thereof |
| CN105084762B (en) * | 2014-05-12 | 2018-01-02 | 中国科学院过程工程研究所 | A kind of coating of high temperature anti-thermal shock and corrosion and heat resistant for stainless steel and refractory steel and preparation method thereof |
| CN106219986A (en) * | 2016-07-15 | 2016-12-14 | 福州大学 | A kind of devitrified glass of the corrosion of resistance to aluminum and preparation method thereof |
| CN106219986B (en) * | 2016-07-15 | 2018-07-20 | 福州大学 | A kind of devitrified glass and preparation method thereof of resistance to molten aluminum corrosion |
| CN109130362A (en) * | 2018-09-12 | 2019-01-04 | 张家港市沐和新材料技术开发有限公司 | A kind of high strength micro-crystalline glass-metallic composite |
| US11415004B2 (en) | 2020-12-09 | 2022-08-16 | Honeywell International Inc. | Corrosion and oxidation resistant coatings for gas turbine engines, and methods for producing the same |
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