Surface & Coatings Technology2022，Vol.4375.DOI:10.1016/j.surfcoat.2022.128354

Zinc aluminum-layered double hydroxide(LDH)-graphene oxide(GO) lubricating and corrosion-resistant composite coating on the surface of magnesium alloy

Zheng Z. Jie X. Liu Y. Tan G. Shen G. Zhang L. Gu Z.
Surface & Coatings Technology2022，Vol.4375.DOI:10.1016/j.surfcoat.2022.128354
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Zinc aluminum-layered double hydroxide(LDH)-graphene oxide(GO) lubricating and corrosion-resistant composite coating on the surface of magnesium alloy

Zheng Z. 1Jie X. 1Liu Y. 1Tan G. 2Shen G. 1Zhang L. 1Gu Z.1
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作者信息

  • 1. School of Materials and Energy Guangdong University of Technology
  • 2. State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of Technology
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Abstract

© 2022 Elsevier B.V.Zinc aluminum-layered double hydroxide (ZnAl-LDH) was grown in-situ on the low-pressure cold gas spraying (LPCGS) Al coating by hydrothermal method. Then the composite coating zinc aluminum-layered double hydroxide-Graphene oxide (LDH-G) was formed by electrostatic adsorption of graphene oxide (GO) and ZnAl-LDH. The structure, morphology, and composition of the coating were studied. A rotational ball-on-disk tribometer (WTM-2E, China) was used to test the tribological properties of the LDH-G coating. The polarization curve and EIS measured the electrochemical properties of the LDH-G coating in 3.5 wt% NaCl solution. Due to the good mechanical properties of graphene and the corrosion inhibition effect of ZnAl-LDH, LDH-G showed an excellent reduction in wear and corrosion resistance.

Key words

Corrosion resistance/Graphene oxide/Layered double hydroxides/Magnesium alloys/Wear reduction

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出版年

2022
Surface & Coatings Technology

Surface & Coatings Technology

ISTP
ISSN：0257-8972
参考文献量39
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