The role of Nb in enhancing the corrosion resistance of U-Nb alloy to hydrogen

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2024-11-23 DOI:10.1016/j.corsci.2024.112594

Licheng Chen, Hefei Ji, Bin Su, Piheng Chen, Xiaolin Wang

引用次数: 0

Abstract

The corrosion resistance of uranium to hydrogen has been significantly enhanced by niobium addition while its mechanism remains unknown. To better understanding the underlying effect of niobium addition, behaviours of hydrogen in α-U, dilute U-Nb alloy and concentrated U-Nb alloy have been systematically explored by ab-initio calculations and experimental observations. Our findings suggest that Nb atoms play distinct roles in the dilute and concentrated single-phase U-Nb alloys, shifting from hydrogen traps to rapid hydrogen diffusion channels. Moreover, the dominant mechanisms enhancing hydrogen corrosion resistance differ between dilute and concentrated U-Nb alloys.

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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.