Effect of thermal aging on mechanical properties of thermal barrier coatings interface and numerical calculation

被引：0
|
作者：
Liu Y. [1 ,2 ]
Yuan H. [1 ,2 ]
Li D. [3 ]
Fei Y. [1 ,2 ]
机构：
[1] Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, Tianjin
[2] College of Aeronautical Engineering, Civil Aviation University of China, Tianjin
[3] Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2023年 / 44卷 / 20期
基金：
中国国家自然科学基金;
关键词：
dynamic thermal coupling; extended layer wise/solid element; interfacial fracture toughness; thermal barrier coatings; thermally grown oxide;
D O I：
10.7527/S1000-6893.2023.28507
中图分类号：
学科分类号：
摘要：
To investigate the effect of Thermally Grown Oxide（TGO）on the life of thermal barrier coating system，Yttria Stabilized Zirconia（YSZ）was prepared by Atmospheric Plasma Spray（APS）method. Thermal barrier coating was subjected to thermal aging tests at 1 100 ℃ for different durations. Micro morphology of the coatings was observed and analyzed by Scanning Electron Microscopy（SEM），then the interfacial fracture toughness and internal stress of the coating were measured by the interfacial indentation method and the Almen specimen bending method，respectively. The effects of TGO on the coating properties were systematically studied. Meanwhile，the dynamic Thermo-Mechanical Coupling Extended Layer-by-Layer/Solid Element（TM-XLW/SE）method was used to numerically study the problem. The extended layer-by-layer method was used to simulate the behavior between the Top Coat （TC）/TGO and the Bond Coat（BC）/TGO. The alloy matrix was constructed by eight-node solid element. According to the displacement，temperature coordination and internal force balance conditions of the connection area between the thermal barrier coating and the substrate，the thermal barrier coating and the substrate were coupled with each other. The influence of the evolution of TGO thickness on the mechanical properties of the thermal barrier coating under thermal aging was analyzed. The numerical results were compared with the experimental conclusions，which provides further support and evidence for the failure analysis of thermal barrier coatings. © 2023 AAAS Press of Chinese Society of Aeronautics and Astronautics. All rights reserved.
引用
收藏
相关论文
共 38 条
  • [1] ZHANG D H, CHENG Y Y, JIANG R S，, Et al., Tur‑ bine blade investment casting die technology［M］, (2018)
  • [2] YU Z Q, Et al., Experimental investigation of film cooling performance on blade endwall with diffusion slot holes and stator-rotor purge flow［C］, Proceedings of ASME Turbo Expo 2020：Turbomachinery Technical Con‑ ference and Exposition, pp. 1-28, (2020)
  • [3] ZHANG D W，, HAN F，, Et al., Experimental in‑ vestigation on the effect of hole diameter on the leading edge region film cooling of a twist turbine blade under ro‑ tation conditions ［J］, Applied Thermal Engineering, 184, (2021)
  • [4] WANG F Q, WANG J H，, Et al., Numerical inves‑ tigation of effects of blockage， inclination angle， and hole-size on film cooling effectiveness at concave surface ［J］, Journal of Turbomachinery, 143, 2, (2021)
  • [5] ZHU R, ZHANG G H, Et al., Combined-hole film cooling designs based on the construction of antikid‑ ney vortex structure： A review［J］, Journal of Heat Transfer, 143, 3, (2021)
  • [6] JIANG J S, JIANG L X, CAI Z W，, Et al., Numerical stress analysis of the TBC-film cooling system under op‑ erating conditions considering the effects of thermal gradi‑ ent and TGO growth［J］, Surface and Coatings Technol‑ ogy, 357, pp. 433-444, (2019)
  • [7] Thermal conductivity and oxidation behavior of porous Inconel 625 coating interface prepared by dual-injection plasma spraying［J］, Surface and Coatings Technology, 411, (2021)
  • [8] CHEN W R, MARPLE B R，, Et al., The growth and influence of thermally grown oxide in a thermal bar‑ rier coating［J］, Surface and Coatings Technology, 201, 3/4, pp. 1074-1079, (2006)
  • [9] WANG L, DING K Y，, Et al., Effects of TGO growth on the stress distribution and evolution of three-dimensional cylindrical thermal barrier coatings based on finite element simulations［J］, Ceramics International, 48, 6, pp. 7864-7875, (2022)
  • [10] Modelling of TBC system failure：Stress distribution as a function of TGO thickness and thermal expansion mismatch［J］, Engineering Failure Analysis, 13, 3, pp. 409-426, (2006)
1234