Zhiyu Du , Rongjian Shi , Zhishan Mi , Zhao Xu , Yujie Zhu , Saiyu Liu , Kewei Gao , Alex A. Volinsky , Xiaolu Pang
{"title":"Exploring mechanisms and efficacy of passivation films in blocking hydrogen","authors":"Zhiyu Du , Rongjian Shi , Zhishan Mi , Zhao Xu , Yujie Zhu , Saiyu Liu , Kewei Gao , Alex A. Volinsky , Xiaolu Pang","doi":"10.1016/j.corsci.2025.112776","DOIUrl":null,"url":null,"abstract":"<div><div>Based on hydrogen embrittlement-resistant surface design principles, this study investigates the microstructure and effectiveness of passivation films in blocking hydrogen. Passivation films, prepared by electrochemical methods, consist of outer FeOOH layer and inner layers of Cr<sub>2</sub>O<sub>3</sub> and Fe<sub>2</sub>O<sub>3</sub>. The FeOOH layer, with a hydrogen adsorption capacity of −3.555 eV and a diffusion barrier of 3.766 eV, effectively prevents hydrogen penetration. The Cr<sub>2</sub>O<sub>3</sub> and Fe<sub>2</sub>O<sub>3</sub> layers enhance bonding between the films and the substrate as transitional layers. This synergistic structure enhances hydrogen-blocking capabilities, resulting in a 59.92 % reduction in hydrogen embrittlement sensitivity index and a 41.27 % decrease in brittle zone depth.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"247 ","pages":"Article 112776"},"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/S0010938X25001039","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
Based on hydrogen embrittlement-resistant surface design principles, this study investigates the microstructure and effectiveness of passivation films in blocking hydrogen. Passivation films, prepared by electrochemical methods, consist of outer FeOOH layer and inner layers of Cr2O3 and Fe2O3. The FeOOH layer, with a hydrogen adsorption capacity of −3.555 eV and a diffusion barrier of 3.766 eV, effectively prevents hydrogen penetration. The Cr2O3 and Fe2O3 layers enhance bonding between the films and the substrate as transitional layers. This synergistic structure enhances hydrogen-blocking capabilities, resulting in a 59.92 % reduction in hydrogen embrittlement sensitivity index and a 41.27 % decrease in brittle zone depth.
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
