Shuang Wang , Weifeng Qian , Tianxiang Xie , Yongnan Chen , Ning Li
{"title":"Effect of corrosion product on corrosion behavior of PEO coating based on its structure and semiconducting properties","authors":"Shuang Wang , Weifeng Qian , Tianxiang Xie , Yongnan Chen , Ning Li","doi":"10.1016/j.corsci.2025.112727","DOIUrl":null,"url":null,"abstract":"<div><div>Structure and semiconducting properties of corrosion products on plasma electrolyte oxidation (PEO) treated magnesium alloy was investigated with the process of immersion corrosion in 3.5 wt% NaCl solution. It was found that the structure of corrosion products transformed from flaky to dense granular-like, which effectively improved corrosion resistance of PEO coating. At the same time, the generation of corrosion products repaired the oxygen vacancies of original PEO coating, thus inducing semiconducting characters of coating transition from n-type to p-type. This will reduce the adsorption of corrosive ions, and further prolonging protection performance of PEO coating.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"246 ","pages":"Article 112727"},"PeriodicalIF":7.4000,"publicationDate":"2025-04-15","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/S0010938X2500054X","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/22 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Structure and semiconducting properties of corrosion products on plasma electrolyte oxidation (PEO) treated magnesium alloy was investigated with the process of immersion corrosion in 3.5 wt% NaCl solution. It was found that the structure of corrosion products transformed from flaky to dense granular-like, which effectively improved corrosion resistance of PEO coating. At the same time, the generation of corrosion products repaired the oxygen vacancies of original PEO coating, thus inducing semiconducting characters of coating transition from n-type to p-type. This will reduce the adsorption of corrosive ions, and further prolonging protection performance of PEO coating.
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.
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