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

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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 influ-enced by surface integrity and microstructure.Therefore,recognizing failure mechanisms and devel-oping 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 pre-treatment and post-treatment.In addition,a potential direction for the development and applica-tion of TBCs surface treatment is suggested.

Thermal Barrier Coatings(TBCs)FailureSurface treatment processesProcessing goalsMass finishing

Hao LI、Shengqiang YANG、Xiuhong LI、Wenhui LI

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College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China

Shanxi Province Key Laboratory of Precise Machining,Taiyuan University of Technology,Taiyuan 030024,China

College of Aeronautics and Astronautics,Taiyuan University of Technology,Taiyuan 030024,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaCentral Government Guides Local Foundation for Science and Technology Development,ChinaCentral Government Guides Local Foundation for Science and Technology Development,China

5207536251975399YDZJSX2022A020YDZJSX2022B004

2024

10.1016/j.cja.2024.07.015

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(9)
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