退火对二硅酸镱环境屏障涂层 CMAS 腐蚀性能的影响：拉曼成像研究

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2024-09-16 DOI:10.1016/j.corsci.2024.112450

Shun Wang , Tao Zheng , Yong Qin , Baosheng Xu , Zelong Wang , Yiguang Wang

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引用次数: 0

摘要

该研究利用退火前后的拉曼成像技术研究了二硅酸镱 EBC 的 CMAS 腐蚀性能。退火使涂层转变为晶体状，修复了孔隙和裂纹，降低了腐蚀深度和速度。拉曼光谱显示，随着腐蚀时间的延长，残余应力也在增加，而喷涂涂层的应力更低，更容易受损。这项研究提高了拉曼光谱在 CMAS 条件下表征 EBC 降解的非破坏性应用，为改进航空发动机燃烧室设计提供了启示。

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Influence of annealing on the CMAS corrosion behaviour of ytterbium disilicate environmental barrier coatings: A Raman imaging study

The study examined the CMAS corrosion behaviour of ytterbium disilicate EBCs using Raman imaging before and after annealing. Annealing transformed the coatings to crystalline, healing pores and cracks, and reducing corrosion depth and rate. Raman spectroscopy showed increased residual stresses with corrosion time, while sprayed coatings had lower stresses and higher susceptibility to damage. This research enhances the use of Raman spectroscopy in non-destructively characterizing EBCs degradation under CMAS conditions, offering insights for aeroengine combustion chamber design improvements.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.