• 文献标题:   Zinc aluminum-layered double hydroxide(LDH)-graphene oxide(GO) lubricating and corrosion-resistant composite coating on the surface of magnesium alloy
  • 文献类型:   Article
  • 作  者:   SHEN GZ, ZHANG LY, GU ZW, ZHENG ZD, LIU YW, TAN GB, JIE XH
  • 作者关键词:   magnesium alloy, graphene oxide, layered double hydroxide, corrosion resistance, wear reduction
  • 出版物名称:   SURFACE COATINGS TECHNOLOGY
  • ISSN:   0257-8972 EI 1879-3347
  • 通讯作者地址:  
  • 被引频次:   9
  • DOI:   10.1016/j.surfcoat.2022.128354 EA MAR 2022
  • 出版年:   2022

▎ 摘  要

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 ZnAlLDH. 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.