K. L. Lou, B. Zhang, M. Zhu, Y. F. Yuan, S. Y. Guo
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引用次数: 0
Abstract
This work investigated the influence of NH4HSO4 concentration on the corrosion behavior of CoCrNi medium-entropy alloy (MEA) in ammonium sulfate mother liquor. The results suggest that the addition of NH4HSO4 decreases the corrosion resistance of the MEA. With increasing NH4HSO4 concentration, the pits generated on the alloy significantly increase. Under the collective destruction caused by H+ ions, H atoms and Cl- ions, the thickness and integrity of passivation film decrease, causing a deterioration in its protective performance. Meanwhile, adding NH4HSO4 significantly alters the electronic structure of surface film, weakens its stability and results in serious damage to the corrosion resistance of the MEA.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
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