期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 40, 期 9, 页码 3363-3379出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2020.03.036
关键词
Environmental barrier coating; Finite element analysis; Modeling; Stress; Failure
资金
- National Natural Science Foundation of China [11602125]
- Beijing Institute of Technology Research Fund Program for Young Scholars
- National Science and Technology Major Project [2017-V I-0020-0093]
Advanced gas turbines pursue efficiency improvement by employing high-temperature lightweight materials. Ceramic matrix composites are the most promising candidates for hot section components. However, they generally require environmental protections for long-term stability in harsh working conditions subjected to water vapor volatilization, accelerated oxidation, severe corrosion and erosion. To this end, environmental barrier coating systems (EBCs) have substantially progressed as an integral design element in the past two decades. As a versatile numerical method, finite element analysis has been widely applied in the investigations of EBCs from stress modeling to service life prediction. This article reviews recent advances in the numerical studies of EBCs for gas turbines, covering fundamental analyses of stress state and heat transfer, elucidations of fracture and damage mechanisms, as well as applications in service conditions. Current numerical solutions, understandings and potential directions are discussed respectively, with general remarks on technical development in the end.
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