CN106493348A - A kind of TiAl3/Al2O3 composite powder and its preparation method and application - Google Patents
A kind of TiAl3/Al2O3 composite powder and its preparation method and application Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims abstract description 71
- 239000002131 composite material Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims 12
- 229910052593 corundum Inorganic materials 0.000 title claims 12
- 229910001845 yogo sapphire Inorganic materials 0.000 title claims 12
- 229910010039 TiAl3 Inorganic materials 0.000 title claims 4
- 238000000576 coating method Methods 0.000 claims abstract description 65
- 239000011248 coating agent Substances 0.000 claims abstract description 60
- 229910010038 TiAl Inorganic materials 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 11
- 238000000713 high-energy ball milling Methods 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 238000009792 diffusion process Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 239000011812 mixed powder Substances 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 239000010410 layer Substances 0.000 claims 2
- 238000010422 painting Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000011247 coating layer Substances 0.000 claims 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract description 40
- 230000003647 oxidation Effects 0.000 abstract description 23
- 238000007254 oxidation reaction Methods 0.000 abstract description 23
- 229910010413 TiO 2 Inorganic materials 0.000 abstract description 8
- 239000008199 coating composition Substances 0.000 abstract description 4
- 239000011253 protective coating Substances 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 description 14
- 239000000956 alloy Substances 0.000 description 14
- 238000010288 cold spraying Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 229910000951 Aluminide Inorganic materials 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 229910006281 γ-TiAl Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 229910004349 Ti-Al Inorganic materials 0.000 description 3
- 229910004692 Ti—Al Inorganic materials 0.000 description 3
- 230000004584 weight gain Effects 0.000 description 3
- 235000019786 weight gain Nutrition 0.000 description 3
- 238000005269 aluminizing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013034 coating degradation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- Other Surface Treatments For Metallic Materials (AREA)
Abstract
本发明涉及钛合金高温防护涂层制备技术，具体为一种TiAl3/Al2O3复合粉末及其制备方法和应用。首先选用纯Al和纳米TiO2粉末以一定比例高能球磨一定时间后热处理制得TiAl3/Al2O3复合粉末，再用冷气动力喷涂的方法在温度100～700℃，压力0.3～5.0MPa的条件下，将制得的复合粉末喷涂到钛合金基材上形成TiAl3/Al2O3复合涂层。涂层成分为TiAl3和Al2O3，其中Al2O3在涂层中分布均匀，涂层厚度在10μm以上。本发明制备方法操作简单，成分容易控制，所获涂层孔隙率低，与基体相容性、结合力好，具有较好的抗高温氧化性能，可以大大降低涂层与基体的互扩散，可以很好地解决钛合金高温氧化问题。The invention relates to a technology for preparing a titanium alloy high-temperature protective coating, in particular to a TiAl 3 /Al 2 O 3 composite powder and a preparation method and application thereof. First, select pure Al and nano-TiO 2 powders and heat-treat them for a certain period of time with a certain proportion of high-energy ball milling to obtain TiAl 3 /Al 2 O 3 composite powders. Under the conditions, the prepared composite powder is sprayed on the titanium alloy substrate to form a TiAl 3 /Al 2 O 3 composite coating. The coating composition is TiAl 3 and Al 2 O 3 , wherein Al 2 O 3 is evenly distributed in the coating, and the coating thickness is above 10 μm. The preparation method of the invention is simple to operate, easy to control the composition, the obtained coating has low porosity, good compatibility and bonding force with the substrate, has good high temperature oxidation resistance, can greatly reduce the interdiffusion between the coating and the substrate, and can It can well solve the problem of high temperature oxidation of titanium alloy.
Description
技术领域：Technical field:
本发明涉及钛合金高温防护涂层制备技术，具体为一种TiAl3/Al2O3复合粉末及其制备方法和应用。The invention relates to a technology for preparing a titanium alloy high-temperature protective coating, in particular to a TiAl 3 /Al 2 O 3 composite powder and a preparation method and application thereof.
背景技术：Background technique:
Ti-Al系合金，尤其是α-Ti3Al、γ-TiAl和O相Ti2AlNb合金具有低密度、高强度、高熔点和优良的抗蠕变性能，可广泛用于汽车或航空发动机的高温部件，是很有应用前景的轻型高温材料。见文献[1]H.Clemens,and H.Kestler,Processingand Applications of Intermetallicγ‐TiAl‐Based Alloys,Adv.Eng.Mater.,2000,2(9),p 551-570。然而Ti-Al合金抗高温氧化性能不足，尤其是当其使用温度超过800℃时，表面形成不具有保护性的TiO2氧化膜，同时氧会渗透到基体中与钛基体形成固溶体，降低合金的塑性，严重影响合金的使用性能。见文献[2]A.Rahmel,M.Schütze,and W.Quadakkers,Fundamentals of TiAl Oxidation–a Critical Review,Mater.Corros.,1995,46(5),p 271-285。因此，钛合金在高温状况下使用必须施加涂层进行保护。Ti-Al alloys, especially α-Ti 3 Al, γ-TiAl and O-phase Ti 2 AlNb alloys have low density, high strength, high melting point and excellent creep resistance, and can be widely used in automobiles or aircraft engines High-temperature components are lightweight high-temperature materials with great application prospects. See literature [1] H.Clemens, and H.Kestler, Processing and Applications of Intermetallicγ‐TiAl‐Based Alloys, Adv.Eng.Mater., 2000, 2(9), p 551-570. However, the high temperature oxidation resistance of Ti-Al alloy is insufficient, especially when its service temperature exceeds 800°C, a non-protective TiO2 oxide film is formed on the surface, and oxygen will penetrate into the matrix to form a solid solution with the titanium matrix, reducing the alloy’s corrosion resistance. Plasticity seriously affects the performance of the alloy. See literature [2] A.Rahmel, M.Schütze, and W.Quadakkers, Fundamentals of TiAl Oxidation—a Critical Review, Mater.Corros., 1995, 46(5), p 271-285. Therefore, titanium alloys must be coated for protection when used under high temperature conditions.
目前，Ti-Al合金的防护涂层有很多种。其中，铝化物涂层与基体合金具有很好地相容性，获得了广泛的研究，传统的制备铝化物涂层的方法主要有：粉末包埋渗铝、热浸镀渗铝、电镀铝和热扩散、溅射铝和热扩散以及热喷涂铝及热扩散，采用这些方法形成的铝化物涂层都是由向内扩散的铝和基体反应生成的。这些铝化物涂层虽然在一定程度上提高了基体的抗氧化性能，但其依然存在不足，一方面涂层脆性较高，易产生裂纹；另一方面是高温氧化过程中涂层与基体互扩散导致涂层退化速度快，见文献[3-9]：At present, there are many kinds of protective coatings for Ti-Al alloys. Among them, the aluminide coating has good compatibility with the matrix alloy, and has been extensively studied. The traditional methods for preparing aluminide coatings mainly include: powder embedding aluminizing, hot dip aluminizing, electroplating aluminum and Thermal diffusion, sputtered aluminum and thermal diffusion, and thermal sprayed aluminum and thermal diffusion, the aluminide coatings formed by these methods are all formed by the reaction of inwardly diffused aluminum and the substrate. Although these aluminide coatings have improved the oxidation resistance of the substrate to a certain extent, they still have shortcomings. On the one hand, the coating is brittle and prone to cracks; on the other hand, the coating and the substrate interdiffused during high temperature oxidation. Lead to rapid coating degradation, see literature [3-9]:
[3]C.H.Koo,and T.H.Yu,Pack Cementation Coatings on Ti3Al-Nb Alloys toModify the High-Temperature Oxidation Properties,Surf.Coat.Technol.,2000,126(2-3),p 171-180；[3] CHKoo, and THYu, Pack Cementation Coatings on Ti 3 Al-Nb Alloys to Modify the High-Temperature Oxidation Properties, Surf. Coat. Technol., 2000, 126(2-3), p 171-180;
[4]Z.D.Xiang,S.Rose,and P.K.Datta,Pack Deposition of Coherent AluminideCoatings on Gamma-TiAl for Enhancing Its High Temperature Oxidation Resistance,Surf.Coat.Technol.,2002,161(2-3),p 286-292；[4] Z.D.Xiang, S.Rose, and P.K.Datta, Pack Deposition of Coherent Aluminide Coatings on Gamma-TiAl for Enhancing Its High Temperature Oxidation Resistance, Surf. Coat. Technol., 2002, 161(2-3), p 286- 292;
[5]V.Gauthier,F.Dettenwanger,M.Schütze,V.Shemet,and W.Quadakkers,Oxidation-Resistant Aluminide Coatings on γ-TiAl,Oxid.Met.,2003,59(3-4),p233-255；[5] V.Gauthier, F.Dettenwanger, M.Schütze, V.Shemet, and W.Quadakkers, Oxidation-Resistant Aluminide Coatings on γ-TiAl, Oxid.Met., 2003, 59(3-4), p233- 255;
[6]T.Sasaki,T.Yagi,T.Watanabe,and A.Yanagisawa,Aluminizing of TiAl-BasedAlloy Using Thermal Spray Coating,Surf.Coat.Technol.,2011,205(13-14),p3900-3904；[6] T.Sasaki, T.Yagi, T.Watanabe, and A.Yanagisawa, Aluminizing of TiAl-Based Alloy Using Thermal Spray Coating, Surf.Coat.Technol., 2011, 205(13-14), p3900-3904;
[7]M.S.Chu,and S.K.Wu,The Improvement of High Temperature Oxidation ofTi–50Al by Sputtering Al Film and Subsequent Interdiffusion Treatment,Acta Mater.,2003,51(11),p 3109-3120；[7] M.S.Chu, and S.K.Wu, The Improvement of High Temperature Oxidation of Ti–50Al by Sputtering Al Film and Subsequent Interdiffusion Treatment, Acta Mater., 2003, 51(11), p 3109-3120;
[8]F.A.Varlese,M.Tului,S.Sabbadini,F.Pellissero,M.Sebastiani,and E.Bemporad,Optimized Coating Procedure for the Protection of TiAl Intermetallic Alloyagainst High Temperature Oxidation,Intermetallics,2013,37,p 76-82；[8] F.A.Varlese, M.Tului, S. Sabbadini, F.Pellissero, M.Sebastiani, and E.Bemporad, Optimized Coating Procedure for the Protection of TiAl Intermetallic Alloy against High Temperature Oxidation, Intermetallics, 2013, 37, p 76- 82;
[9]M.Miyake,S.Tajikara,and T.Hirato,Fabrication of TiAl3Coating onTiAl-Based Alloy by Al Electrodeposition from Dimethylsulfone Bath and SubsequentAnnealing,Surf.Coat.Technol.,2011,205(21-22),p 5141-5146。[9] M. Miyake, S. Tajikara, and T. Hirato, Fabrication of TiAl 3 Coating on TiAl-Based Alloy by Al Electrodeposition from Dimethylsulfone Bath and Subsequent Annealing, Surf. Coat. Technol., 2011, 205(21-22), p 5141-5146.
因此，如何解决铝化物涂层中上述存在的两个问题是进一步提高涂层性能的关键。TiAl3/Al2O3复合涂层内存在大量惰性的Al2O3，其可以作为涂层与基体之间的扩散障，从而降低涂层在高温下的退化速度；此外复合涂层是由颗粒组成的，与传统的铝化物涂层组织不同，这种组织在一定程度上可以提高涂层的抗裂纹扩展能力。Therefore, how to solve the above two problems in the aluminide coating is the key to further improving the coating performance. There is a large amount of inert Al 2 O 3 in the TiAl 3 /Al 2 O 3 composite coating, which can act as a diffusion barrier between the coating and the substrate, thereby reducing the degradation rate of the coating at high temperature; in addition, the composite coating is composed of Different from the traditional aluminide coating structure, this structure can improve the crack growth resistance of the coating to a certain extent.
发明内容Contents of the invention
本发明的目的在于提供一种用于钛合金高温防护的TiAl3/Al2O3复合粉末及其制备方法和应用，解决α-Ti3Al、γ-TiAl和O相Ti2AlNb合金的高温氧化问题。该复合粉末及涂层成分为TiAl3和Al2O3，具有较好的抗高温氧化和环境脆化性能，制备方法采用冷喷涂，操作简便，易于控制，形成涂层质量高。The purpose of the present invention is to provide a TiAl 3 /Al 2 O 3 composite powder for high temperature protection of titanium alloys and its preparation method and application, to solve the high temperature problems of α-Ti 3 Al, γ-TiAl and O-phase Ti 2 AlNb alloys Oxidation problem. The composition of the composite powder and the coating is TiAl 3 and Al 2 O 3 , which has good high-temperature oxidation resistance and environmental embrittlement performance. The preparation method adopts cold spraying, which is easy to operate and easy to control, and the formed coating has high quality.
本发明的技术方案是：Technical scheme of the present invention is:
一种TiAl3/Al2O3复合粉末，复合粉末成分为TiAl3和Al2O3，粒径为10～80μm，且Al2O3在复合粉末中均匀分布。A TiAl 3 /Al 2 O 3 composite powder, the composition of the composite powder is TiAl 3 and Al 2 O 3 , the particle size is 10-80 μm, and the Al 2 O 3 is evenly distributed in the composite powder.
所述的TiAl3/Al2O3复合粉末的制备方法，选用纯Al和纳米TiO2粉末以质量比3:1～1:1之间高能球磨混合1～4h，混合后的粉末在300～800℃热扩散处理2～20h，随炉冷却后生成TiAl3/Al2O3复合粉末。The preparation method of the TiAl 3 /Al 2 O 3 composite powder is to select pure Al and nano-TiO 2 powder and mix them by high-energy ball milling at a mass ratio of 3:1 to 1:1 for 1 to 4 hours. Thermal diffusion treatment at 800°C for 2 to 20 hours, and TiAl 3 /Al 2 O 3 composite powder is produced after cooling in the furnace.
所述的TiAl3/Al2O3复合粉末的应用，选用所制备的TiAl3/Al2O3复合粉末，采用冷气动力喷涂技术，操作条件为温度100～700℃，压力0.3～5.0MPa，直接喷涂到钛合金基体上形成复合涂层。For the application of the TiAl 3 /Al 2 O 3 composite powder, the prepared TiAl 3 /Al 2 O 3 composite powder is selected, and the cold air power spraying technology is adopted, and the operating conditions are temperature 100-700°C, pressure 0.3-5.0MPa, Spray directly onto the titanium alloy substrate to form a composite coating.
所述的TiAl3/Al2O3复合粉末的应用，Al2O3在复合涂层中均匀分布。In the application of the TiAl 3 /Al 2 O 3 composite powder, the Al 2 O 3 is uniformly distributed in the composite coating.
所述的TiAl3/Al2O3复合粉末的应用，复合涂层与基体呈现机械咬合，结合力良好。With the application of the TiAl 3 /Al 2 O 3 composite powder, the composite coating is mechanically interlocked with the substrate, and the bonding force is good.
所述的TiAl3/Al2O3复合粉末的应用，复合涂层成分与复合粉末成分相同，涂层厚度在10μm以上。For the application of the TiAl 3 /Al 2 O 3 composite powder, the composition of the composite coating is the same as that of the composite powder, and the thickness of the coating is above 10 μm.
本发明的设计思想是：Design idea of the present invention is:
冷喷涂是近年来发展起来的一门新兴涂层制备技术，与传统的热喷涂不同，它是在低温状态下，通过高速粉末颗粒撞击基体时的塑性变形所形成的涂层，因此冷喷涂特别适合对热和氧化敏感的粉末和基体涂层的制备。本发明用高能球磨Al/TiO2混合粉末及热处理制备TiAl3/Al2O3复合粉末，而后直接冷喷涂所制备的TiAl3/Al2O3复合粉末，形成TiAl3/Al2O3复合涂层。该方法操作简便，易于控制，高温氧化实验表明该涂层具有很好地抗氧化性能，该技术在国内外未见报导。Cold spraying is a new coating preparation technology developed in recent years. Different from traditional thermal spraying, it is a coating formed by plastic deformation when high-speed powder particles hit the substrate at low temperature. Therefore, cold spraying is particularly Suitable for the preparation of powder and base coatings that are sensitive to heat and oxidation. The present invention prepares TiAl 3 /Al 2 O 3 composite powder by high-energy ball milling of Al/TiO 2 mixed powder and heat treatment, and then directly cold sprays the prepared TiAl 3 /Al 2 O 3 composite powder to form a TiAl 3 /Al 2 O 3 composite powder coating. The method is easy to operate and easy to control. The high temperature oxidation test shows that the coating has good oxidation resistance, and this technology has not been reported at home and abroad.
本发明的优点及有益效果是：Advantage of the present invention and beneficial effect are:
1.本发明制备的复合粉末及涂层，对钛合金的高温防护包括高温氧化和环境脆化十分有效。1. The composite powder and coating prepared by the present invention are very effective for high temperature protection of titanium alloys including high temperature oxidation and environmental embrittlement.
2.本发明复合粉末采用高能球磨混合粉末及其热处理方法制得，所制备的复合粉末两相分布均匀，成分容易控制。2. The composite powder of the present invention is prepared by high-energy ball milling mixed powder and its heat treatment method. The two-phase distribution of the prepared composite powder is uniform, and the composition is easy to control.
3.复合涂层采用冷喷涂方法制备。喷涂过程中无氧化，无相变，涂层成分与复合粉末保持一致，操作过程简单。3. The composite coating is prepared by cold spraying method. There is no oxidation and no phase change during the spraying process, the coating composition is consistent with the composite powder, and the operation process is simple.
4.本发明采用冷喷涂方法制备涂层，对基体合金没有影响。4. The present invention adopts the cold spraying method to prepare the coating, which has no influence on the matrix alloy.
附图说明Description of drawings
图1为制备的TiAl3/Al2O3复合粉末形貌。Figure 1 is the morphology of the prepared TiAl 3 /Al 2 O 3 composite powder.
图2为冷喷涂制备的TiAl3/Al2O3复合涂层截面形貌。Figure 2 shows the cross-sectional morphology of TiAl 3 /Al 2 O 3 composite coating prepared by cold spraying.
图3为TiAl3/Al2O3复合涂层900℃氧化60h后涂层与基体界面形貌。Fig. 3 is the morphology of the interface between the coating and the substrate after the TiAl 3 /Al 2 O 3 composite coating was oxidized at 900°C for 60 h.
具体实施方式detailed description
在具体实施方式中，本发明TiAl3/Al2O3复合粉末及其涂层的制备方法，首先选用纯Al和纳米TiO2粉末以一定比例高能球磨混合一定时间，而后热处理制得TiAl3/Al2O3复合粉末，而后用冷气动力喷涂的方法在温度100～700℃(优选为550～600℃)，压力0.3～5.0MPa(优选为1.8～2.5MPa)的条件下，将制得的复合粉末喷涂到钛合金基材上形成TiAl3/Al2O3复合涂层。涂层成分为TiAl3和Al2O3，其中Al2O3在涂层中分布均匀，涂层厚度在10μm以上。该制备方法操作简单，成分容易控制，所获涂层孔隙率低，与基体相容性、结合力好，具有较好的抗高温氧化性能，可以大大降低涂层与基体的互扩散，可以很好地解决钛合金高温氧化问题。In a specific embodiment, the preparation method of the TiAl 3 /Al 2 O 3 composite powder and its coating of the present invention first selects pure Al and nano-TiO 2 powder and mixes them with a certain proportion of high-energy ball milling for a certain period of time, and then heat-treats to obtain TiAl 3 / Al 2 O 3 composite powder, and then use the method of cold air power spraying at a temperature of 100-700 ° C (preferably 550-600 ° C), and a pressure of 0.3-5.0 MPa (preferably 1.8-2.5 MPa). The composite powder is sprayed on the titanium alloy substrate to form a TiAl 3 /Al 2 O 3 composite coating. The coating composition is TiAl 3 and Al 2 O 3 , wherein Al 2 O 3 is evenly distributed in the coating, and the coating thickness is above 10 μm. The preparation method is simple to operate, the composition is easy to control, the obtained coating has low porosity, good compatibility and bonding force with the substrate, has good high temperature oxidation resistance, can greatly reduce the interdiffusion between the coating and the substrate, and can be easily Solve the high temperature oxidation problem of titanium alloy well.
本发明中，冷喷涂设备请参见中国发明专利(专利号：01128130.8，授权公告号：CN1161188C)提到的冷气动力喷涂装置。In the present invention, please refer to the cold air power spraying device mentioned in the Chinese invention patent (patent number: 01128130.8, authorized announcement number: CN1161188C) for the cold spraying equipment.
本发明TiAl3/Al2O3复合粉末及涂层成分为TiAl3和Al2O3，涂层厚度在10μm以上，其中Al2O3在涂层中均匀分布。复合粉末的粒径一般在10～80μm，且Al2O3在复合粉末中均匀分布。复合涂层的厚度一般在10～60μm，复合涂层与基体以机械咬合的方式结合，结合力良好。The TiAl 3 /Al 2 O 3 composite powder and the coating composition of the present invention are TiAl 3 and Al 2 O 3 , the thickness of the coating is more than 10 μm, and the Al 2 O 3 is uniformly distributed in the coating. The particle size of the composite powder is generally 10-80 μm, and Al 2 O 3 is uniformly distributed in the composite powder. The thickness of the composite coating is generally 10-60 μm, and the composite coating is combined with the substrate in a mechanical occlusal manner, and the bonding force is good.
为使本发明的技术方案和优点更加清楚，下面将结合具体实施例进行详细描述。In order to make the technical solutions and advantages of the present invention clearer, the following will describe in detail in conjunction with specific embodiments.
实施例1Example 1
将粒度为5～30μm的纯Al粉和纳米TiO2粉末以质量比3:1混合后高能球磨2h，高能球磨后的粉末在650℃热处理10h，制备出TiAl3/Al2O3复合粉末，用冷喷涂设备在γ-TiAl基体合金上沉积制备的复合粉末，操作温度500℃，操作压力1.8MPa，涂层厚度20μm，复合涂层中两相分布均匀。Mix pure Al powder with a particle size of 5-30 μm and nano-TiO 2 powder at a mass ratio of 3:1, then high-energy ball mill for 2 hours, and heat-treat the powder after high-energy ball milling at 650°C for 10 hours to prepare TiAl 3 /Al 2 O 3 composite powder. The composite powder prepared by depositing on the γ-TiAl matrix alloy by cold spraying equipment, the operating temperature is 500°C, the operating pressure is 1.8MPa, the coating thickness is 20μm, and the two phases in the composite coating are evenly distributed.
如图1所示，复合粉末颗粒尺寸在30～80μm。如图2所示，复合涂层厚度约为20μm，与基体结合良好。如图3所示，复合涂层在经过高温氧化后与基体的互扩散被明显地减弱。实验结果表明，该涂层具有很好地抗高温氧化性能。本实施例的性能指标为：涂层在900℃下等温氧化200h后增重小于1.5mg/cm2。As shown in Figure 1, the particle size of the composite powder is between 30 and 80 μm. As shown in Figure 2, the thickness of the composite coating is about 20 μm, and it is well combined with the substrate. As shown in Figure 3, the interdiffusion between the composite coating and the substrate is significantly weakened after high temperature oxidation. Experimental results show that the coating has good high temperature oxidation resistance. The performance index of this embodiment is: the weight gain of the coating is less than 1.5 mg/cm 2 after isothermal oxidation at 900° C. for 200 hours.
实施例2Example 2
将粒度为5～30μm的纯Al粉和纳米TiO2粉末以质量比2:1混合后高能球磨1h，高能球磨后的粉末在750℃热处理10h，制备出TiAl3/Al2O3复合粉末，用冷喷涂设备在γ-TiAl基体合金上沉积制备的复合粉末，操作温度600℃，操作压力2.0MPa，涂层厚度30μm。实验结果表明，该涂层具有很好地抗高温氧化性能。本实施例的性能指标为：涂层在900℃下等温氧化500h后增重小于2.5mg/cm2。Mix pure Al powder with a particle size of 5-30 μm and nano-TiO 2 powder at a mass ratio of 2:1, then high-energy ball mill for 1 h, and heat-treat the powder after high-energy ball milling at 750°C for 10 h to prepare TiAl 3 /Al 2 O 3 composite powder. The prepared composite powder was deposited on the γ-TiAl matrix alloy by cold spraying equipment, the operating temperature was 600°C, the operating pressure was 2.0 MPa, and the coating thickness was 30 μm. Experimental results show that the coating has good high temperature oxidation resistance. The performance index of this embodiment is: the weight gain of the coating is less than 2.5 mg/cm 2 after isothermal oxidation at 900° C. for 500 hours.
实施例3Example 3
将粒度为5～30μm的纯Al粉和纳米TiO2粉末以质量比1:1混合后高能球磨2h，高能球磨后的粉末在850℃热处理10h，制备出TiAl3/Al2O3复合粉末，用冷喷涂设备在Ti-22Al-26Nb基体合金上沉积制备的复合粉末，操作温度500℃，操作压力1.8MPa，涂层厚度10μm。实验结果表明，该涂层具有很好地抗高温氧化性能。本实施例的性能指标为：涂层在900℃下循环氧化100次后增重小于2.0mg/cm2。Mix pure Al powder with a particle size of 5-30 μm and nano-TiO 2 powder at a mass ratio of 1:1, then high-energy ball mill for 2 hours, and heat-treat the powder after high-energy ball milling at 850°C for 10 hours to prepare TiAl 3 /Al 2 O 3 composite powder. The composite powder prepared was deposited on the Ti-22Al-26Nb matrix alloy by cold spraying equipment, the operating temperature was 500 ° C, the operating pressure was 1.8 MPa, and the coating thickness was 10 μm. Experimental results show that the coating has good high temperature oxidation resistance. The performance index of this embodiment is: the weight gain of the coating is less than 2.0 mg/cm 2 after cyclic oxidation at 900° C. for 100 times.
实施例4Example 4
将粒度为5～30μm的纯Al粉和纳米TiO2粉末以质量比2.5:1混合后高能球磨2h，高能球磨后的粉末在750℃热处理12h，制备出TiAl3/Al2O3复合粉末，用冷喷涂设备在γ-TiAl基体合金上沉积制备的复合粉末，操作温度650℃，操作压力2.0MPa，涂层厚度30μm。实验结果表明，该涂层具有很好地抗高温氧化性能。本实施例的性能指标为：涂层在900℃下循环氧化200次后氧化皮无剥落。Mix pure Al powder with a particle size of 5-30 μm and nano-TiO 2 powder at a mass ratio of 2.5:1, then high-energy ball mill for 2 hours, and heat-treat the powder after high-energy ball milling at 750°C for 12 hours to prepare TiAl 3 /Al 2 O 3 composite powder. The prepared composite powder was deposited on the γ-TiAl matrix alloy by cold spraying equipment, the operating temperature was 650°C, the operating pressure was 2.0 MPa, and the coating thickness was 30 μm. Experimental results show that the coating has good high temperature oxidation resistance. The performance index of this embodiment is: after the coating is cyclically oxidized for 200 times at 900° C., the scale does not peel off.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207988A (en) * | 2017-07-25 | 2019-01-15 | 中国航空制造技术研究院 | A kind of reparation of thin-wall workpiece surface damage cold spraying powder and restorative procedure |
| CN111763939A (en) * | 2020-07-18 | 2020-10-13 | 新余学院 | A kind of multi-scale TiC ceramic phase reinforced TiAl3/TiAl dual-phase composite coating and preparation method thereof |
| CN112157269A (en) * | 2020-09-24 | 2021-01-01 | 四川大学 | Preparation method of cold spray coating based on heat treatment of aluminum alloy powder |
| CN114150313A (en) * | 2021-11-23 | 2022-03-08 | 西安文理学院 | TiAl alloy high-temperature oxidation-resistant nano thermal barrier coating and preparation method thereof |
| CN115651429A (en) * | 2022-09-03 | 2023-01-31 | 中国科学院金属研究所 | Low-temperature cured TiAl 3 -Al 2 O 3 -CuO-Cr 2 O 3 -SiC composite high-radiation coating material |
| US11692273B2 (en) | 2017-12-07 | 2023-07-04 | Lufthansa Technik Ag | Method for applying a titanium aluminide alloy, titanium aluminide alloy and substrate comprising a titanium aluminide alloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337377A (en) * | 2001-09-20 | 2002-02-27 | 山东大学 | Intermatallic Ti-Al compound/alumina ceramic composite material and its prepn process |
| CN1775976A (en) * | 2005-09-29 | 2006-05-24 | 陕西科技大学 | Synthesis Method of Al2O3/TiAl Composite Material |
| CN101058881A (en) * | 2007-06-04 | 2007-10-24 | 西安交通大学 | Method for preparing compound coat between metals |
| CN101838809A (en) * | 2009-03-18 | 2010-09-22 | 中国科学院金属研究所 | Titanium alloy high-temperature protective coating and preparation method thereof |
| CN102134714A (en) * | 2010-01-27 | 2011-07-27 | 中国科学院金属研究所 | Alumina-reinforced high-temperature protective coating and preparation method thereof |
| CN102296289A (en) * | 2011-08-19 | 2011-12-28 | 九江学院 | Preparation method of metal ceramic coating with intermetallic compound as binding phase |
-
2015
- 2015-09-08 CN CN201510567485.7A patent/CN106493348B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337377A (en) * | 2001-09-20 | 2002-02-27 | 山东大学 | Intermatallic Ti-Al compound/alumina ceramic composite material and its prepn process |
| CN1775976A (en) * | 2005-09-29 | 2006-05-24 | 陕西科技大学 | Synthesis Method of Al2O3/TiAl Composite Material |
| CN101058881A (en) * | 2007-06-04 | 2007-10-24 | 西安交通大学 | Method for preparing compound coat between metals |
| CN101838809A (en) * | 2009-03-18 | 2010-09-22 | 中国科学院金属研究所 | Titanium alloy high-temperature protective coating and preparation method thereof |
| CN102134714A (en) * | 2010-01-27 | 2011-07-27 | 中国科学院金属研究所 | Alumina-reinforced high-temperature protective coating and preparation method thereof |
| CN102296289A (en) * | 2011-08-19 | 2011-12-28 | 九江学院 | Preparation method of metal ceramic coating with intermetallic compound as binding phase |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207988A (en) * | 2017-07-25 | 2019-01-15 | 中国航空制造技术研究院 | A kind of reparation of thin-wall workpiece surface damage cold spraying powder and restorative procedure |
| US11692273B2 (en) | 2017-12-07 | 2023-07-04 | Lufthansa Technik Ag | Method for applying a titanium aluminide alloy, titanium aluminide alloy and substrate comprising a titanium aluminide alloy |
| CN111763939A (en) * | 2020-07-18 | 2020-10-13 | 新余学院 | A kind of multi-scale TiC ceramic phase reinforced TiAl3/TiAl dual-phase composite coating and preparation method thereof |
| CN112157269A (en) * | 2020-09-24 | 2021-01-01 | 四川大学 | Preparation method of cold spray coating based on heat treatment of aluminum alloy powder |
| CN112157269B (en) * | 2020-09-24 | 2021-11-26 | 四川大学 | Preparation method of cold spray coating based on heat treatment of aluminum alloy powder |
| CN114150313A (en) * | 2021-11-23 | 2022-03-08 | 西安文理学院 | TiAl alloy high-temperature oxidation-resistant nano thermal barrier coating and preparation method thereof |
| CN115651429A (en) * | 2022-09-03 | 2023-01-31 | 中国科学院金属研究所 | Low-temperature cured TiAl 3 -Al 2 O 3 -CuO-Cr 2 O 3 -SiC composite high-radiation coating material |
| CN115651429B (en) * | 2022-09-03 | 2023-11-10 | 中国科学院金属研究所 | A low-temperature curing TiAl3-Al2O3-CuO-Cr2O3-SiC composite high-radiation coating material |
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