[1]杨丽,周益春,朱旺.热障涂层失效的声发射实时表征技术研究进展[J].中国材料进展,2020,(11):878-896.[doi:10.7502/j.issn.1674-3962.202007034]
 YANG Li,ZHOU Yichun,ZHU Wang.Research Progress in the RealTime Acoustic Emission Characterization of Failure in Thermal Barrier Coatings[J].MATERIALS CHINA,2020,(11):878-896.[doi:10.7502/j.issn.1674-3962.202007034]
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热障涂层失效的声发射实时表征技术研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2020年第11期
页码:
878-896
栏目:
出版日期:
2020-11-30

文章信息/Info

Title:
Research Progress in the RealTime Acoustic Emission Characterization of Failure in Thermal Barrier Coatings
文章编号:
1674-3962(2020)11-0878-19
作者:
杨丽12 周益春2朱旺2
(1. 西安电子科技大学先进材料与纳米科技学院, 陕西 西安 710126)(2. 湘潭大学材料科学与工程学院, 湖南 湘潭 411105)
Author(s):
YANG Li12 ZHOU Yichun2 ZHU Wang2
(1.School of Advanced Materials and Nanotechnology, Xidian University, Xi‘an 710126, China)(2. School of Materials and Engineering, Xiangtan University, Xiangtan 411105, China)
关键词:
热障涂层裂纹演变声发射检测模式识别失效机理
Keywords:
TBCs crack evolution acoustic emission technology crack mode identification failure mechanisms
分类号:
V261.93+3;V23
DOI:
10.7502/j.issn.1674-3962.202007034
文献标志码:
A
摘要:
耐高温、高隔热的热障涂层能有效降低涡轮叶片金属基底工作温度,从而提高发动机的热效率与性能,被列为航空发动机的关键热防护技术。然而,在燃气热冲击、冲蚀、腐蚀等恶劣环境中服役时,热障涂层极易产生涂层裂纹、界面裂纹、变形等多种损伤,并最终以涂层剥落的形式失效。采用声发射技术实时无损检测服役环境下热障涂层裂纹萌生与演化的过程,是表征涂层失效过程、揭示其机理进而预测最终剥落的有效手段。阐述了热障涂层裂纹演化的高温声发射检测方法,并着重从损伤模式、定量评估方法及基于此的热障涂层失效机理等研究方面,介绍了热障涂层失效的声发射实时表征技术的研究进展,并对其发展趋势进行了展望。
Abstract:
Thermal barrier coatings (TBCs), with high temperature durability and excellent heat insulation, can effectively reduce the working temperature of metal base made for turbine blade, bringing about a significant improvement in both efficiency and performance of engines. Therefore, TBCs have been continually developed as a key thermal protection technique for aero-engines. However, TBCs are likely to be subject to serious damage like coating crack, interface crack, deformation and so on under serving at the complicated environment including gas shock, erosion, corrosion, etc., which finally will peel off and fail to function. Acoustic emission technology can real-timely detect crack’s initiation and evolution process in TBCs nondestructively, which is an effective method to supervise the failure process, discover the failure mechanism and predict the failure-time for TBCs. In this paper, research progress of the high temperature acoustic emission technology on detection of the failure for TBCs will be introduced, and the method itself, crack mode identification, quantitative damage evaluation and failure mechanisms of TBCs obtained based on the method will all be elaborated in detail.

备注/Memo

备注/Memo:
收稿日期:2020-07-27修回日期:2020-10-12 基金项目:国家自然科学基金重大项目(11890684, 51590891); 国家自然科学基金面上项目(51672233);湖南省自然科学创新研究群体基金项目(2020JJ1005) 第一作者:杨丽,1980年生,女,教授,博士生导师, Email:lyang@xtu.edu.cn
更新日期/Last Update: 2020-11-01