Numerical assessment of thermal insulation and stress responses in film-cooled turbine vane thermal barrier coatings under CMAS deposition conditions

被引:2
|
作者
Liu, Wei [1 ,2 ]
Yan, Gang [1 ,2 ]
Sun, Yu [1 ,2 ]
Liu, Zhiyuan [1 ]
Yang, Li [1 ,2 ]
Zhou, Yichun [1 ,2 ]
机构
[1] Xidian Univ, Sch Adv Mat & Nanotechnol, Xian 710126, Peoples R China
[2] Xidian Univ, Acad Adv Interdisciplinary Res, Frontier Res Ctr Thin Films & Coatings Device Appl, Xian 710126, Peoples R China
基金
中国国家自然科学基金;
关键词
Thermal barrier coatings; Thermal insulation effect; Maximum principal stress; Spalling failure; TEMPERATURE; BLADE; TBC; DEGRADATION; SIMULATION; SUBSTRATE; OXIDATION; BEHAVIOR; FAILURE; SYSTEM;
D O I
10.1016/j.surfcoat.2024.131158
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Deposition of CaO-MgO-Al2O3-SiO2 (CMAS) significantly contributes to the spalling of thermal barrier coatings (TBCs) on turbine vanes. A thorough understanding of the thermodynamic properties during CMAS deposition is critical for advancing the lifetime design of TBCs. This study employs the CMAS gas thermal shock test to determine the deposition characteristics, which were then analyzed using the critical velocity model. The results of this analysis align closely with experimental outcomes. Based on the numerical simulation of the fluid-solid coupling method, we further explored the insulation efficiency and stress distribution in TBCs under CMAS deposition conditions. It was observed that CMAS predominantly accumulates on the pressure side and within the film pores of the vane TBCs, with minimal deposition on the suction side. Such deposition patterns result in an increased overall temperature of the vane, concurrently diminishing the TBCs' insulation efficiency. Specifically, CMAS deposition raised the maximum surface temperature of the vane by 100 K and decreased the peak insulation performance of the TBCs by 16%. Additionally, the deposition induced higher stresses within both the TBCs and the underlying vane substrate, with a 7 % increase in the maximum principal stresses at the TBC surface and a 6 % increase in the substrate. Consequently, under CMAS deposition conditions, TBCs in regions of low insulation efficiency and high stress on turbine vanes are prone to cracking and subsequent spallation.
引用
收藏
页数:11
相关论文
共 15 条
  • [1] Numerical prediction of thermal insulation performance and stress distribution of thermal barrier coatings coated on a turbine vane
    Liu, Z. Y.
    Zhu, W.
    Yang, L.
    Zhou, Y. C.
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2020, 158
  • [2] Numerical Modeling of Thermal Stress of Thermal Barrier Coatings on a Turbine Vane with Film Cooling Structure
    Liu Jian-hua
    Liu Yong-bao
    Liu Li
    He Xing
    CHINA SURFACE ENGINEERING, 2018, 31 (03) : 126 - 136
  • [3] Numerical investigation of the effect of CMAS deposition on the temperature and stress distribution of thermal barrier coatings coated on a turbine blade
    Liu, X. H.
    Zhu, W.
    Guo, J. W.
    Xiao, Y. Q.
    AEROSPACE SCIENCE AND TECHNOLOGY, 2023, 140
  • [4] A CONJUGATE HEAT TRANSFER AND THERMAL STRESS ANALYSIS OF FILM-COOLED SUPERALLOY WITH THERMAL BARRIER COATING
    Chen, Xiaohu
    Li, Jiao
    Long, Yun
    Wang, Yuzhang
    Weng, Shilie
    Yavuzkurt, Savas
    PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, VOL 7B, PT II, 2020,
  • [5] Reliability analysis of thermal barrier coatings under CMAS deposition and penetration
    Wang, Yu-Qun
    Wang, Fei-Long
    Mao, Jun-Kui
    Wang, Yu-Bin
    Zeng, Jia-Wei
    SURFACE & COATINGS TECHNOLOGY, 2024, 489
  • [6] Microstructure and microcrack evolution mechanism of thermal barrier coatings under CMAS infiltration and corrosion: Experimental and numerical modeling
    Zhou, Qianqian
    Wei, Yueguang
    Xu, Guangnan
    Yang, Li
    Zhou, Yichun
    CORROSION SCIENCE, 2024, 229
  • [7] Study on the Residual Stress in Film-Cooled Turbine Blade-Thermal Barrier Coating System with 3D Finite Element Model
    Yu, Liming
    Zhang, Yifei
    Zhao, Rujuan
    Cheng, Ziyi
    Wang, Yi
    Yu, Qingmin
    JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2025, : 1160 - 1176
  • [8] Numerical Simulation of Surface Crack Propagation in Thermal Barrier Coatings Under Thermal Mismatch Stress
    Yu Qingmin
    Shi Yongzhi
    RARE METAL MATERIALS AND ENGINEERING, 2018, 47 (10) : 3052 - 3057
  • [9] Design of durability and lifetime assessment method under thermomechanical stress for thermal barrier coatings
    Shin, Hyun Gyoo
    Choi, Young Kue
    Jeon, Seol
    Jeon, Min Seok
    Lee, Hee Soo
    KOREAN JOURNAL OF METALS AND MATERIALS, 2014, 52 (10): : 769 - 775
  • [10] Numerical analyses of the residual stress and top coat cracking behavior in thermal barrier coatings under cyclic thermal loading
    Jiang, Jishen
    Wang, Weizhe
    Zhao, Xiaofeng
    Liu, Yingzheng
    Cao, Zhaomin
    Xiao, Ping
    ENGINEERING FRACTURE MECHANICS, 2018, 196 : 191 - 205