An interesting oxidation-reduction phenomenon between the Zr(Cr,Fe)2 Laves phase and Cr2O3 under high temperature

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Corrosion Science Pub Date : 2025-01-28 DOI:10.1016/j.corsci.2025.112751

Kejian Wei , Jiahong Wei , Guoqin Cao , Gang Cheng , Weihua Li , Junhua Hu , Sho Kano , Hiroaki Abe

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引用次数: 0

Abstract

Studying Zr(Cr, Fe)₂ Laves phase oxidation is vital for deepening our understanding of the oxidation mechanism of accident tolerant fuel (ATF) Cr-coated Zr and Zr-based alloys. Here, an interesting oxidation phenomenon of Zr(Cr, Fe)₂ Laves phase was confirmed for the first time. Meanwhile, this oxidation was accompanied by the Cr₂O₃ reduction. The lattice oxygen was transferred from Cr₂O₃ to Zr(Cr, Fe)₂ Laves phases, and Cr₂O₃ was transformed into Cr while Zr(Cr, Fe)₂ was oxidized into m-ZrO₂, Cr and Fe. The reaction Gibbs Free energy (△_r

G_{m}^{Θ}

) value is around −980 kJ/mol without considering Fe, which verifies the feasibility of this interesting oxidation-reduction phenomenon.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

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.