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| Effect of Different Phytates on Corrosion Behaviors of Carbon Steel |
ZHOU Long1, LU Jun1, DING Wenshan1, LI Hao1, TAO Tao1, SHI Chao1( ), SHAO Yawei2, LIU Guangming1 |
1. Key Laboratory for Microstructural Control of Metallic Materials of Jiangxi Province, Nanchang Hangkong University, Nanchang 330063, China
2. School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China |
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Cite this article:
ZHOU Long, LU Jun, DING Wenshan, LI Hao, TAO Tao, SHI Chao, SHAO Yawei, LIU Guangming. Effect of Different Phytates on Corrosion Behaviors of Carbon Steel. Journal of Chinese Society for Corrosion and protection, 2024, 44(3): 669-678.
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Abstract The study on the preparation and properties of new anti-rust pigments is of significance for the development of anticorrosion coatings. In this paper, phytates were prepared by reaction of sulfates with sodium phytate. The phytates were characterized using SEM, EDS, FT-IR, and XRD analysis. The results showed that the prepared phytates were amorphous containing obvious phosphate groups, and presented as spherical particles with a diameter of 300-400 nm. The solubilities of phytates in aqueous solution were analyzed through titration test. The corrosion behavior of Q235 steel in phytate-extracting solutions, which were acquired by soaking aluminum-, magnesium-, calcium-, manganese- and zinc-phytates, respectively, in 3.5%NaCl solution and then leaching, were studied via immersion test, Tafel polarization, and electrochemical impedance spectroscopy. The findings revealed that the corrosion rate of carbon steel increased in aluminum phytate-extracting solution due to the production of aluminum-acid (Al(OH)3). However, the corrosion rates decreased in the other four extracting solutions. Notably, the inhibition rate of zinc phytate was approximately 92.46%.
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Received: 27 July 2023
32134.14.1005.4537.2023.232
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| Fund: National Natural Science Foundation of China(52001155);Natural Science Foundation of Jiangxi Province(20212BAB214038);Doctoral Scientific Research Foundation(EA201901056) |
Corresponding Authors:
SHI Chao, E-mail: shichao@nchu.edu.cn
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