Yongkuan Zhou , Jiajie Kang , Guozheng Ma , Lina Zhu , Qiang Da , Xulei Wu , Ruifeng Li , Bin Liu
{"title":"Influence of annealing treatment on the microstructure and corrosion resistance of AlxTiyCoCrFeNi high-entropy coatings","authors":"Yongkuan Zhou , Jiajie Kang , Guozheng Ma , Lina Zhu , Qiang Da , Xulei Wu , Ruifeng Li , Bin Liu","doi":"10.1016/j.corsci.2025.112838","DOIUrl":null,"url":null,"abstract":"<div><div>The effects of Al, Ti and annealing temperature on the microstructure, phase structure, and corrosion resistance of the HVOF-sprayed Al<sub>x</sub>Ti<sub>y</sub>CoCrFeNi 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.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"249 ","pages":"Article 112838"},"PeriodicalIF":7.4000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Science","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0010938X25001659","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/3/1 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
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 AlxTiyCoCrFeNi 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.
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.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
