Enhancing tribocorrosion resistance of VCoNi alloys in artificial seawater via nitrogen alloying

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

Corrosion Science Pub Date : 2024-11-26 DOI:10.1016/j.corsci.2024.112600

Zhichao Jiao , Yifei Dong , Qikang Li , Qing Zhou , Shuai Han , Cunhong Yin , Zhiyuan Huang , Xianzong Wang , Haifeng Wang , Weimin Liu

引用次数: 0

Abstract

The demand for tribocorrosion-resistant equipment has driven extensive research into advanced materials. Utilizing electrochemical measurements and density-functional theory (DFT) calculations, this study systematically elucidates nitrogen alloying's role in enhancing tribocorrosion resistance of VCoNi MPEAs in artificial seawater. The results demonstrate that increasing N enhances VCoNiN's tribocorrosion performance due to stronger nitrogen-metal bonding, which leads to a decrease in the electronic work function, and competitive adsorption between O and Cl. Specifically, N-alloying strengthens O bonding while reducing the detrimental effects of Cl adsorption. This work provides novel insights into optimizing the tribocorrosion resistance of MPEAs by clarifying the critical role of N in modifying the electronic structure.

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氮合金化提高VCoNi合金在人工海水中的耐摩擦腐蚀性能

对耐摩擦腐蚀设备的需求推动了对先进材料的广泛研究。利用电化学测量和密度泛函理论（DFT）计算，系统地阐明了氮合金化对提高VCoNi MPEAs在人工海水中的耐摩擦腐蚀性能的作用。结果表明，N的增加增强了VCoNiN的摩擦腐蚀性能，这是由于氮金属键的增强，导致电子功函数的降低，以及O和Cl之间的竞争吸附。具体来说，氮合金化增强了O键，同时减少了Cl吸附的有害影响。这项工作通过阐明N在改变电子结构中的关键作用，为优化mpea的耐摩擦腐蚀性能提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.