Influence of microstructure of CoCrNi medium entropy alloy on its corrosion behavior
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 27 October 2023
Issue publication date: 20 November 2023
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.
Keywords
Acknowledgements
Junyu Shi and Shengli Ling contributed equally to this work. This work was supported by National Natural Science Foundation of China (No. 92166105 and 52005053), High-Tech Industry Science and Technology Innovation Leading Program of Hunan Province (No. 2020GK2085), Hunan Youth Science and Technology Innovation Talent Project (2021RC3096) and Open fund of Key Laboratory of New Processing Technology for Nonferrous Metal and Materials Ministry of Education (No. 20KF-24).
Citation
Shi, J., Ling, S., Kuang, Y., Tong, Y., Hu, Y. and Deng, D. (2023), "Influence of microstructure of CoCrNi medium entropy alloy on its corrosion behavior", Anti-Corrosion Methods and Materials, Vol. 70 No. 6, pp. 438-448. https://doi.org/10.1108/ACMM-06-2023-2840
Publisher
:Emerald Publishing Limited
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