Xiaoqiang Jiang , Ya Liu , Changjun Wu , Haoping Peng , Junxiu Chen , Xiangying Zhu , Hao Tu , Jianhua Wang , Xuping Su
{"title":"Effect of surface finishing on the early-stage oxidation of alumina forming austenitic (AFA) alloys under low oxygen pressure","authors":"Xiaoqiang Jiang , Ya Liu , Changjun Wu , Haoping Peng , Junxiu Chen , Xiangying Zhu , Hao Tu , Jianhua Wang , Xuping Su","doi":"10.1016/j.corsci.2025.112774","DOIUrl":null,"url":null,"abstract":"<div><div>The effect of surface finishing on the oxidation of Fe-25Ni-20Cr-4Al-based alloy at 1000 °C in an Ar + 4 % H<sub>2</sub> + (0.15 %–0.25 %) H<sub>2</sub>O atmosphere was studied. A multi-layered oxide film formed on the polished samples, while a single-layer Al-rich oxide developed on the ground samples. The low oxidation rate of the ground samples was controlled by Al<sub>2</sub>O<sub>3</sub>, while the oxidation rate of the polished samples was influenced by both the interstitial transport mechanism of Cr and the presence of a SiO<sub>2</sub> layer. The synergistic effects of surface roughness and oxygen pressure on the early-stage oxidation behavior of alumina-forming austenitic alloys were further explored.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"247 ","pages":"Article 112774"},"PeriodicalIF":7.4000,"publicationDate":"2025-02-11","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/S0010938X25001015","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The effect of surface finishing on the oxidation of Fe-25Ni-20Cr-4Al-based alloy at 1000 °C in an Ar + 4 % H2 + (0.15 %–0.25 %) H2O atmosphere was studied. A multi-layered oxide film formed on the polished samples, while a single-layer Al-rich oxide developed on the ground samples. The low oxidation rate of the ground samples was controlled by Al2O3, while the oxidation rate of the polished samples was influenced by both the interstitial transport mechanism of Cr and the presence of a SiO2 layer. The synergistic effects of surface roughness and oxygen pressure on the early-stage oxidation behavior of alumina-forming austenitic alloys were further explored.
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
