{"title":"The staggered dual-phase structure in AlCoCrFeNi2.1 eutectic high-entropy alloys for superior irradiation and corrosion resistance","authors":"","doi":"10.1016/j.intermet.2024.108427","DOIUrl":null,"url":null,"abstract":"<div><p>The cold-rolling process yields a staggered dual-phase structure in the AlCoCrFeNi<sub>2.1</sub> eutectic high-entropy alloy (EHEA), showcasing resilience against high-temperature and high-pressure water corrosion in the rigorous radiation environment of nuclear reactors. This novel alloy not only fosters heterointerfaces to promote the self-healing of radiation defects but also strategically exploits the variation in corrosion resistance between the FCC and B2 phases to construct barriers hindering the diffusion of corrosion. In contrast to traditional AlCoCrFeNi<sub>2.1</sub> EHEAs, where corrosion behaviors under radiation predominantly stem from the FCC phase, exacerbating the overall corrosion, our experiments demonstrate that the augmented anti-radiation performance of the FCC phase in the staggered dual-phase structure of AlCoCrFeNi<sub>2.1</sub> EHEAs significantly mitigates the impact of coupled irradiation and corrosion effects. This study elevates the performance of AlCoCrFeNi<sub>2.1</sub> EHEAs to a higher echelon, offering fresh insights into the role of heterointerfaces in EHEAs.</p></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Intermetallics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0966979524002462","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The cold-rolling process yields a staggered dual-phase structure in the AlCoCrFeNi2.1 eutectic high-entropy alloy (EHEA), showcasing resilience against high-temperature and high-pressure water corrosion in the rigorous radiation environment of nuclear reactors. This novel alloy not only fosters heterointerfaces to promote the self-healing of radiation defects but also strategically exploits the variation in corrosion resistance between the FCC and B2 phases to construct barriers hindering the diffusion of corrosion. In contrast to traditional AlCoCrFeNi2.1 EHEAs, where corrosion behaviors under radiation predominantly stem from the FCC phase, exacerbating the overall corrosion, our experiments demonstrate that the augmented anti-radiation performance of the FCC phase in the staggered dual-phase structure of AlCoCrFeNi2.1 EHEAs significantly mitigates the impact of coupled irradiation and corrosion effects. This study elevates the performance of AlCoCrFeNi2.1 EHEAs to a higher echelon, offering fresh insights into the role of heterointerfaces in EHEAs.
期刊介绍:
This journal is a platform for publishing innovative research and overviews for advancing our understanding of the structure, property, and functionality of complex metallic alloys, including intermetallics, metallic glasses, and high entropy alloys.
The journal reports the science and engineering of metallic materials in the following aspects:
Theories and experiments which address the relationship between property and structure in all length scales.
Physical modeling and numerical simulations which provide a comprehensive understanding of experimental observations.
Stimulated methodologies to characterize the structure and chemistry of materials that correlate the properties.
Technological applications resulting from the understanding of property-structure relationship in materials.
Novel and cutting-edge results warranting rapid communication.
The journal also publishes special issues on selected topics and overviews by invitation only.