Influence of annealing treatment on the microstructure and corrosion resistance of AlxTiyCoCrFeNi high-entropy coatings

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

Corrosion Science Pub Date : 2025-03-01 DOI:10.1016/j.corsci.2025.112838

Yongkuan Zhou , Jiajie Kang , Guozheng Ma , Lina Zhu , Qiang Da , Xulei Wu , Ruifeng Li , Bin Liu

引用次数: 0

Abstract

The effects of Al, Ti and annealing temperature on the microstructure, phase structure, and corrosion resistance of the HVOF-sprayed Al_xTi_yCoCrFeNi coatings were investigated. Annealing treatment at 500 °C leads to homogenization within the coating structure as well as a reduction in the inhomogeneity of the chemical potential distribution, so the coatings annealed at 500 °C demonstrate outstanding corrosion resistance. However, an increase Al content correlates with a decrease in the passivation film thickness and densification, which ultimately leads to reduced corrosion resistance of the coating. Conversely, an increased trace Ti content enhances the corrosion resistance of high-entropy coatings.

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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.