基于TBC技术的航空发动机热端部件保护结构  

Protective Structure of Aero-Engine Hot End Components Based on TBC Technology

作　　者：吴彩彬 杨润浦 单智洋 李娜 

机构地区：[1]南昌航空大学飞行器工程学院,江西 南昌

出　　处：《材料科学》2024年第4期483-497,共15页Material Sciences

摘　　要：热障涂层在航空发动机中被用作热端部件的保护结构,能有效保证航空发动机热端部件正常运转,是一种能显著提高其工作效率和寿命的表面防护技术。航空发动机的热端件占航空发动机总重量的40%~60%,这些热端件的性能几乎决定了航空发动机的主要性能,所以TBC技术的研究和发展在如今看来至关重要。本文主要介绍了热障涂层系统的分类、具体结构、制备方法,MCrAlY合金粘结层材料和Pt-Al合金粘结层材料的研究进展,介绍了单元素掺杂改性YSZ涂层陶瓷材料和多元素掺杂改性YSZ涂层陶瓷材料的研究进展,以及对热障涂层技术的失效机理进行简要的介绍。在文章的最后,对热障涂层材料方面和失效分析方面的未来发展趋势和方向进行展望。Thermal Barrier Coating (TBC) is used as a protective structure for hot end components in aero-engine, which can effectively ensure the normal operation of aero-engine hot end components, and it is a kind of surface protection technology that can significantly improve their working efficiency and life time. Aero-engine hot end components account for 40~60% of the total weight of the aero-engine, and the performance of these hot end components almost determines the main performance of the aero-engine, so the research and development of the TBC technology seems to be crucial nowadays. This paper mainly introduces the classification, specific structure, and preparation method of thermal barrier coating system, the research progress of MCrAlY alloy bonding layer material and Pt-Al alloy bonding layer material, the research progress of single-element doped-modified YSZ coating ceramic material and multi-element doped-modified YSZ coating ceramic material, as well as a brief introduction to the failure mechanism of thermal barrier coating technology. At the end of the article, the future development trends and directions of thermal barrier coating materials and failure analysis are prospected.

关 键 词：航空发动机热端部件 热障涂层 保护结构 涂层材料 涂层失效机理 

分 类 号：TG1[金属学及工艺—金属学]