Failure mechanisms and surface treatment processes of thermal barrier coatings:Review  

作　　者：Hao LI Shengqiang YANG Xiuhong LI Wenhui LI 

机构地区：[1]College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China [2]Shan.xi Province Key Laboratory of Precise Machining,Taiyuan University of Technology,Taiyuan 030024,China [3]College of Aeronautics and Astronautics,Taiyuan University of Technology,Taiyuan 030024,China

出　　处：《Chinese Journal of Aeronautics》2024年第9期20-40,共21页中国航空学报（英文版）

基　　金：the National Natural Science Foundation of China (Nos.52075362 and 51975399);the Central Government Guides Local Foundation for Science and Technology Development,China (Nos.YDZJSX2022A020 and YDZJSX2022B004).

摘　　要：Thermal Barrier Coatings(TBCs)technology is key to improving the service temperature and the productivity of aircraft engines.The performance and failure life of TBCs are strongly influenced by surface integrity and microstructure.Therefore,recognizing failure mechanisms and developing effective surface treatment processes are crucial for further improving the reliability and durability of TBCs.This paper explains the primary reasons for TBC failure,emphasizing on how integrity of surface and interface influences interfacial oxidation,high-temperature erosion,and Calcium-Magnesium-Alumina-Silicate(CMAS)corrosion.Furthermore,this paper completely and rigorously evaluates the research status of TBCs surface treatment processes,including the characteristics and effects of various processes,and describes the requirements and goals of pretreatment and post-treatment.In addition,a potential direction for the development and application of TBCs surface treatment is suggested.

关 键 词：Thermal BarrierCoatings(TBCs) FAILURE Surface treatment processes Processing goals Mass finishing 

分 类 号：V261.933[航空宇航科学与技术—航空宇航制造工程]