Corrosion resistance of a silane/ceria modified Mg-Al-layered double hydroxide on AA5005 aluminum alloy

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

  • Wei WU
  • Fen ZHANG
  • Yu-Chao LI
  • Yong-Feng ZHOU
  • Qing-Song YAO
  • Liang SONG
  • Rong-Chang ZENG
  • Dong-Chu CHEN

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)420-430
Journal / PublicationFrontiers of Materials Science
Volume13
Issue number4
Online published4 Nov 2019
Publication statusPublished - Dec 2019

Abstract

The present work aimed at assessing the electrochemical behavior and the corrosion inhibition performance of Mg-Al-layered double hydroxide (LDH) coatings modified with methyltrimethoxysilane (MTMS) and cerium nitrate on AA5005 aluminum alloy. The chemical compositions and surface morphologies of the coatings were investigated by XRD, FT-IR and FE-SEM, while their corrosion resistance was evaluated by electrochemical and immersion tests. An optimum corrosion resistance of the composite coatings was obtained by adding 10−2 mol·L−1 cerium nitrate. An excess addition of cerium nitrate resulted in a loose structure and poor corrosion resistance of the coating. The corrosion mechanism of the composite coatings was proposed and discussed.

Research Area(s)

  • aluminum alloy, cerium oxide, corrosion resistance, layered double hydroxide, polymer coating

Citation Format(s)

Corrosion resistance of a silane/ceria modified Mg-Al-layered double hydroxide on AA5005 aluminum alloy. / WU, Wei; ZHANG, Fen; LI, Yu-Chao; ZHOU, Yong-Feng; YAO, Qing-Song; SONG, Liang; ZENG, Rong-Chang; TJONG, Sie Chin; CHEN, Dong-Chu.

In: Frontiers of Materials Science, Vol. 13, No. 4, 12.2019, p. 420-430.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review