| 航空发动机涡轮叶片热障涂层应用的关键技术和问题 |
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| 引用本文： | 程玉贤,王璐,袁福河.航空发动机涡轮叶片热障涂层应用的关键技术和问题[J].航空制造技术,2017(15). |
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| 作者姓名： | 程玉贤 王璐 袁福河 |
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| 作者单位： | 中国航发沈阳黎明航空发动机有限责任公司,沈阳,110043 |
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| 摘 要： | 热障涂层是提高涡轮叶片可靠性和服役寿命的关键技术。从热障涂层的粘结层与涡轮叶片高温合金基体的匹配性、CMAS(一种基于CaO、MgO、Al2O3和Si O2等多种氧化物构成的环境沉积物)形成及其对热障涂层的损伤和相应的防护、叶片热障涂层厚度分布的过程控制、热障涂层制备过程中气膜孔缩孔、热障涂层的在线无损检测及涂层返修以满足涡轮叶片全寿命周期需求等方面论述了航空发动机涡轮叶片热障涂层工程应用技术和需要解决的实际问题。
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| 关 键 词： | 热障涂层 CMAS 气膜孔 无损检测 返修 |
Key Technologies and Problems of Thermal Barrier Coating Application on Aeroengine Turbine Vane and Blade |
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| CHENG Yuxian,WANG Lu,YUAN Fuhe.Key Technologies and Problems of Thermal Barrier Coating Application on Aeroengine Turbine Vane and Blade[J].Aeronautical Manufacturing Technology,2017(15). |
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| Authors: | CHENG Yuxian WANG Lu YUAN Fuhe |
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| Abstract: | The thermal barrier coating system is one of key technologies to improve reliability and service life of turbine vane and blade.Compatibility between the superalloy substrate and bond coat,damage of the TBCs subjected to CMAS deposit and methods to improve its resistance to CMAS,process control of thickness distribution over the turbine vane and blade,reduction in diameters of the cooling holes,in-situ nondestructive test of TBCs quality and refurbishment of worn TBCs are described with respect to engineering application technologies and problems to be solved for the TBCs on turbine vane and blade. |
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| Keywords: | Thermal barrier coating CMAS Film cooling hole Nondestructive test Refurbishment |
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