[1]胡林荣,所彭帮,龙 金,等.doi: 10.3969/j.issn.1001-3849.2025.06.005大气等离子喷涂Al2O3-TiO2-Ni5Al复合涂层的性能及应用[J].电镀与精饰,2025,(06):28-34.
　Hu Linrong,Suo Pengbang *,Long Jin,et al.Performance and application of atmospheric plasma spraying Al2O3-TiO2-Ni5Al composite coating[J].Plating & Finishing,2025,(06):28-34.
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doi: 10.3969/j.issn.1001-3849.2025.06.005大气等离子喷涂Al2O3-TiO2-Ni5Al复合涂层的性能及应用()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年06
页码:
28-34
栏目:
出版日期:
2025-06-30

文章信息/Info

Title:
Performance and application of atmospheric plasma spraying Al2O3-TiO2-Ni5Al composite coating
作者:
胡林荣1; 所彭帮1; 龙 金1; 张凤梅2; 滕李虎3; 吴 迪2; 朱春丽1
(1. 贵州黎阳国际制造有限公司,贵州 安顺 561100 ;2. 青岛中科国晟动力科技有限公司,山东 青岛 266000 ;3. 中国人民解放军空军93147部队,贵州 贵阳 550000)
Author(s):
Hu Linrong1;  Suo Pengbang 1*;  Long Jin1;  Zhang Fengmei2;  Teng Lihu 3;  Wu Di2;  Zhu Chunli1
(1. Guizhou Liyang International Manufacturing Co., Ltd., Anshun 561100, China; 2. Qingdao Zhongke Guosheng Power Technology Co., Ltd., Qingdao 266000, China; 3. 93147 Air Force of the Chinese People’s Liberation Army, Guiyang 550000, China)
关键词:
Al2O3-TiO2-Ni5Al; 显微组织; 结合强度; 显微硬度; 封严篦齿
Keywords:
Al2O3-TiO2-Ni5Al;  microstructure;  bonding strength;  microhardness;  sealing grate teeth
分类号:
TG174
文献标志码:
A
摘要:
以Al2O3-3%TiO2粉末和Ni5Al粉末为原料，通过在Al2O3-3%TiO2粉末中混合不同质量比为0、20%、40%、60%的Ni5Al粉末，采用大气等离子喷涂在高温合金GH4169基体表面制备了Al2O3-TiO2-Ni5Al复合涂层，对涂层的显微组织、结合强度、显微硬度、表面状态等方面进行了分析，研究了Ni5Al成分的变化对Al2O3-TiO2-Ni5Al复合涂层性能的影响，对涂层做出了性能优化并在某航空发动机封严篦齿上进行了工程化应用。结果表明：随着Ni5Al含量的增加，Ni5Al呈层片状均匀弥散分布于Al2O3-TiO2-Ni5Al复合涂层中，且涂层孔径逐渐增大；Ni5Al含量的增加可以提高Al2O3-TiO2-Ni5Al复合涂层的结合强度、表面粗糙度，同时降低涂层的显微硬度，涂层表面颜色由灰蓝色逐渐向金属灰色转变；增加粘接层Ni5Al可以提高Al2O3-TiO2-Ni5Al复合涂层与封严篦齿的结合强度及涂层的抗热震性能。
Abstract:
Using Al2O3-3% TiO2 powder and Ni5Al powder as raw materials, Al 2O3-TiO2-Ni5Al composite coatings were prepared on the surface of high-temperature alloy GH4169 substrate by mixing Ni5Al powder with different mass ratios of 0, 20%, 40% and 60% in Al2O3-3% TiO2 powder. The microstructure, bonding strength, microhardness, surface state, and other aspects of the coatings were analyzed. The influence of changes in Ni5Al composition on the properties of Al2O3-TiO2-Ni5Al composite coatings was studied, and the coatings were optimized for performance and applied in engineering on a certain aircraft engine sealing grate. The results show that with the increase of Ni5Al content, Ni5Al is uniformly dispersed in a layered manner in the Al2O3-TiO2-Ni5Al composite coating, and the coating pore size gradually increase. The increase of Ni5Al content can improve the bonding strength and surface roughness of Al2O3-TiO2-Ni5Al composite coating, while reducing the microhardness of the coating. The surface color of the coating gradually changes from gray blue to metallic gray. Adding an adhesive layer of Ni5Al can improve the bonding strength between the Al 2O3-TiO2-Ni5Al composite coating and the sealing grate teeth, as well as the thermal shock resistance of the coating

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更新日期/Last Update: 2025-06-18