Abstract
The pack cementation method was applied for the preparation of four coatings. The pack mixtures consisting of Zn, Y2O3, and NH4Cl were used in this work. The impact of adding Y2O3 on the appearance, the components, and the anti-corrosion action of coatings was analyzed. The appearance was observed by scanning electron microscope. The components were characterized by X-ray diffraction. The results suggested that adding Y2O3 increased the coatings thickness and perfected the coatings quality. Without adding Y2O3, the coatings obtained consisted of Zn atoms and a few Fe atoms. Minute amounts of Y atoms were detected in the coatings at adding Y2O3. The impact of adding Y2O3 on the corrosion performance of coatings was assessed by the corrosion morphology analysis and an electrochemical test. The results showed that adding Y2O3 increased anti-corrosion ability. When the additive amount of Y2O3 was 4 wt %, the coatings exhibited the largest thickness and the strongest anti-corrosion ability.
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Funding
This work was supported by the Doctoral Fund of Yantai Vocational College (2020001), China; the School-based Research of Yantai Vocational College (2020XBZD002), China, and by the Project of Shandong Province Higher Educational Science and Technology Program (J17KB039), China.
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Li Liu, Zhang, YJ., Wang, ZX. et al. Effect of Adding Y2O3 on Property of Zn Coatings via Pack Cementation. Surf. Engin. Appl.Electrochem. 59, 192–198 (2023). https://doi.org/10.3103/S1068375523020126
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DOI: https://doi.org/10.3103/S1068375523020126