航空发动机涡轮叶片热障涂层应用的关键技术和问题

Aeronautical Manufacturing Technology(2017)

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Abstract
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SiO2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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