Insights into corrosion mechanism of FeCrAlY coating in oxygen-poor static and flowing LBE

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

Corrosion Science Pub Date : 2024-10-28 DOI:10.1016/j.corsci.2024.112546

Mingyang Zhou , Wei Zhang , Jiuguo Deng , Ziyao Long , Yilong Zhong , Rongshuo Wang , Hao Liu , Yudong Li , Xin Li , Jijun Yang

引用次数: 0

Abstract

In this research, FeCrAlY coatings were subjected to corrosion testing at temperatures between 550 and 600 ℃ in an oxygen-depleted static and flowing LBE. The results demonstrated that the prepared coatings had a dense structure and were firmly bonded to the substrate. The flowing LBE (lead-bismuth eutectic) hastened corrosion, causing the oxide scale to evolve from a compact two-layer structure to a more porous three-layer structure. The LBE corrosion results in a degradation of the coating's bonding performance. The intrinsic processes that drive the transformation of the coating's microstructure and its performance were elucidated.

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贫氧静态和流动 LBE 中 FeCrAlY 涂层腐蚀机理的启示

在这项研究中，FeCrAlY 涂层在温度为 550 至 600 ℃ 的缺氧静态和流动 LBE 中进行了腐蚀测试。结果表明，制备的涂层结构致密，与基体结合牢固。流动的 LBE（铅铋共晶）加速了腐蚀，使氧化鳞片从致密的两层结构演变为多孔的三层结构。LBE 腐蚀导致涂层的粘结性能下降。研究阐明了驱动涂层微观结构及其性能转变的内在过程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.