Study on corrosion kinetics of 304 stainless steel by 3.5% NaCl solution

Diyao Zhang; Lei Yuan; Jingkun Yu

doi:10.1117/12.3007310

25 October 2023 Study on corrosion kinetics of 304 stainless steel by 3.5% NaCl solution

Diyao Zhang, Lei Yuan, Jingkun Yu

Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 128010L (2023) https://doi.org/10.1117/12.3007310
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China

Abstract

The corrosion process of 304 stainless steel was considered to be mainly composed of the diffusion of corrosion solution to the reaction interface through the corrosion layer and the corrosion reaction between corrosion solution and stainless steel at the reaction interface, and and based on this, the dynamic equation of stainless steel corrosion process was established. The corrosion process of 304 stainless steel in 3.5% NaCl solution at 303.15K, 313.15K and 323.15K was analyzed by electrochemical method, and the diffusion coefficient and reaction constant at different temperatures were calculated according to the corrosion experimental results and the established kinetic model. The results showed that the diffusion of corrosion solution through the corrosion layer was the limiting link in the whole stainless steel corrosion process, and the activation energy of chemical reaction between corrosion solution and stainless steel was 28.42KJ/mol .

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Diyao Zhang, Lei Yuan, and Jingkun Yu "Study on corrosion kinetics of 304 stainless steel by 3.5% NaCl solution", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 128010L (25 October 2023); https://doi.org/10.1117/12.3007310

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