Corrosion Resistance of Dicalcium Phosphate Dihydrate / Poly(Lactic-Co-Glycolic Acid) Hybrid Coating on AZ31 Magnesium Alloy

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

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Author(s)

  • Xia Li
  • Zhengyang Weng
  • Wei Yuan
  • Xianzi Luo
  • Hoi Man Wong
  • Xiangmei Liu
  • Shuilin Wu
  • K.W.K. Yeung
  • Yufeng Zheng

Detail(s)

Original languageEnglish
Pages (from-to)209-221
Journal / PublicationCorrosion Science
Volume102
Online published19 Oct 2015
Publication statusPublished - Jan 2016

Abstract

A hydrid coating composed of dicalcium phosphate dihydrate (DCPD) and poly(lactic-co-glycolic acid) (PLGA) is prepared on AZ31 Mg alloy to control the corrosion resistance. The DCPD coating is deposited on the AZ31 substrate by electrochemical deposition and subsequently covered by the PLGA coating. Potentiodynamic and electrochemical impedance spectroscopy (EIS) tests conducted in simulated body fluid at 37 °C indicate that the corrosion resistance of the AZ31 is improved significantly by this hybrid coating. The deposition time influences the morphology and structure of the DCPD coating and consequently affects the corrosion resistance of both the DCPD and DCPD/PLGA coated samples.

Research Area(s)

  • A. Alloy, A. Magnesium, B. EIS, C. Passive films

Citation Format(s)

Corrosion Resistance of Dicalcium Phosphate Dihydrate / Poly(Lactic-Co-Glycolic Acid) Hybrid Coating on AZ31 Magnesium Alloy. / Li, Xia; Weng, Zhengyang; Yuan, Wei; Luo, Xianzi; Wong, Hoi Man; Liu, Xiangmei; Wu, Shuilin; Yeung, K.W.K.; Zheng, Yufeng; Chu, Paul K.

In: Corrosion Science, Vol. 102, 01.2016, p. 209-221.

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