Influence of microstructure of CoCrNi medium entropy alloy on its corrosion behavior

IF 2.3 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Anti-corrosion Methods and Materials Pub Date : 2023-10-27 DOI:10.1108/acmm-06-2023-2840

Junyu Shi, Shengli Ling, Yinjie Kuang, Yonggang Tong, Yongle Hu, Dunying Deng

引用次数: 0

Abstract

Purpose The purpose of this paper is to reveal the effect of microstructure on the corrosion behavior of CoCrNi alloy in 3.5 Wt.% NaCl solution. Design/methodology/approach The as-cast CoCrNi alloy was prepared by arc melting, and the cold-rolled and annealed alloys were prepared by processing the as-cast alloy. Findings The experimental results showed that a protective passivation film was formed on the surfaces of these CoCrNi MEA, and the stability and compactness of alloys increased in the sequence of cold-rolled, as-cast and annealed CoCrNi alloys. The annealed CoCrNi alloys had the best pitting resistance. Originality/value This study proposes the effect of the microstructure of CoCrNi alloy on corrosion resistance.

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CoCrNi介质熵合金显微组织对其腐蚀行为的影响

目的研究微观组织对CoCrNi合金在3.5 Wt.% NaCl溶液中腐蚀行为的影响。设计/方法/方法采用电弧熔炼法制备铸态CoCrNi合金，并对铸态CoCrNi合金进行冷轧和退火处理。结果表明:CoCrNi MEA表面形成了一层保护钝化膜，合金的稳定性和致密性随CoCrNi合金冷轧、铸态和退火的顺序而提高。退火后的CoCrNi合金抗点蚀性能最好。本研究提出了CoCrNi合金的显微组织对耐蚀性的影响。

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

Anti-corrosion Methods and Materials 工程技术-冶金工程

CiteScore

2.80

自引率

16.70%

发文量

审稿时长

13.5 months

期刊介绍： Anti-Corrosion Methods and Materials publishes a broad coverage of the materials and techniques employed in corrosion prevention. Coverage is essentially of a practical nature and designed to be of material benefit to those working in the field. Proven applications are covered together with company news and new product information. Anti-Corrosion Methods and Materials now also includes research articles that reflect the most interesting and strategically important research and development activities from around the world. Every year, industry pays a massive and rising cost for its corrosion problems. Research and development into new materials, processes and initiatives to combat this loss is increasing, and new findings are constantly coming to light which can help to beat corrosion problems throughout industry. This journal uniquely focuses on these exciting developments to make essential reading for anyone aiming to regain profits lost through corrosion difficulties. • New methods, materials and software • New developments in research and industry • Stainless steels • Protection of structural steelwork • Industry update, conference news, dates and events • Environmental issues • Health & safety, including EC regulations • Corrosion monitoring and plant health assessment • The latest equipment and processes • Corrosion cost and corrosion risk management.