DOAJ Open Access 2022

Enhanced corrosion resistance of AZ31 Mg alloy by one-step formation of PEO/Mg-Al LDH composite coating

Xinxin Zhang Yupeng Zhang You Lv Zehua Dong Teruo Hashimoto +1 lainnya

Abstrak

In the present work, a novel one-step plasma electrolytic oxidation (PEO) method is developed for the formation of PEO/Mg-Al layered double hydroxide (LDH) composite coating on AZ31 Mg alloy. Through the control of electrolyte concentration, a Mg-Al LDH layer was formed on the surface of the resultant PEO coating. The corrosion properties of the composite coating were evaluated by electrochemical analysis, hydrogen evolution measurement and salt spraying testing, which exhibited improved corrosion resistance due to the presence of the Mg-Al LDH layer. This work provides a new strategy to take advantage of alloying elements in Mg alloys in PEO treatment to enhance corrosion resistance.

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials

Penulis (6)

Xinxin Zhang

Yupeng Zhang

You Lv

Zehua Dong

Teruo Hashimoto

Xiaorong Zhou

Format Sitasi

APA MLA BibTeX

Zhang, X., Zhang, Y., Lv, Y., Dong, Z., Hashimoto, T., Zhou, X. (2022). Enhanced corrosion resistance of AZ31 Mg alloy by one-step formation of PEO/Mg-Al LDH composite coating. https://doi.org/10.1016/j.corcom.2022.05.001

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Informasi Jurnal

Tahun Terbit: 2022
Sumber Database: DOAJ
DOI: 10.1016/j.corcom.2022.05.001
Akses: Open Access ✓