{"title":"Effect of hydrogen on oxidation of Fe-20Cr-(1Si, 2Mn or 2Al) alloys in water vapour at 650 °C","authors":"Jiarui Chen, Jianqiang Zhang, David J. Young","doi":"10.1016/j.corsci.2025.112932","DOIUrl":null,"url":null,"abstract":"<div><div>Hydrogen production and utilisation involve H<sub>2</sub>O(g) at high temperatures. However, the effect of hydrogen on chromia-forming heat resistant alloys in H<sub>2</sub>O is still unclear. In this work, Fe-20Cr and Fe-20Cr-(1Si, 2Mn or 2Al) (wt%) were exposed in Ar-xH<sub>2</sub>-10H<sub>2</sub>O gases (x = 2, 10 and 20 vol%) at 650°C for up to 310 h. The binary alloy experienced breakaway oxidation in all gases. Increasing hydrogen content reduced corrosion rates and altered oxide morphologies. Adding Mn, Al or Si to the alloy suppressed oxidation to some extent. The effects of both hydrogen and alloying on the diffusion processes supporting oxidation are discussed.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"251 ","pages":"Article 112932"},"PeriodicalIF":7.4000,"publicationDate":"2025-07-15","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/S0010938X25002598","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/4/8 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Hydrogen production and utilisation involve H2O(g) at high temperatures. However, the effect of hydrogen on chromia-forming heat resistant alloys in H2O is still unclear. In this work, Fe-20Cr and Fe-20Cr-(1Si, 2Mn or 2Al) (wt%) were exposed in Ar-xH2-10H2O gases (x = 2, 10 and 20 vol%) at 650°C for up to 310 h. The binary alloy experienced breakaway oxidation in all gases. Increasing hydrogen content reduced corrosion rates and altered oxide morphologies. Adding Mn, Al or Si to the alloy suppressed oxidation to some extent. The effects of both hydrogen and alloying on the diffusion processes supporting oxidation are discussed.
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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