热循环过程中TGO不均匀生长对mccraly - ysz tbc实际TC/TGO界面动态应力演化的影响

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-05-22 DOI:10.1016/j.surfcoat.2025.132319

Lei Zhang , Shutao Chen , Chuntang Yu , Zhansheng Yu , Chengyang Jiang , Shuai Li , Zebin Bao , Guozheng Quan , Shenglong Zhu , Fuhui Wang

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引用次数: 0

摘要

热障涂层广泛应用于航空发动机叶片，可有效防止叶片高温氧化。采用阈值图像处理技术，准确获取TC/TGO界面真实形貌，建立基于氧扩散分布的TGO生长控制方程。结果表明：TGO的不均匀生长和增厚显著影响热循环试验中TBCs的应力分布和破坏行为；此外，还详细讨论了TGO的不均匀生长对TBCs裂纹起裂的影响。

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Effect of the non-uniformed growth of TGO on dynamic stress evolution in realistic TC/TGO interface of MCrAlY-YSZ TBCs during thermal cycling

Thermal Barrier Coatings (TBCs) are widely applied to the blade of aero-engine to effectively prevent them from high-temperature oxidation. This work obtained the real TC/TGO interface topography accurately by using threshold image processing technology, and established the TGO growth control equation based on oxygen diffusion distribution. Results showed that the non-uniform growth and thickening of TGO significantly affect the stress distribution and failure behavior of the TBCs during thermal cycling test. Besides, the effect of the non-uniform growth of TGO on the crack initiation of TBCs was discussed in detail.

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.