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

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

doi:10.1016/j.corsci.2015.10.010

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

Xia Li
, Zhengyang Weng
, Wei Yuan
, Xianzi Luo
, Hoi Man Wong
, Xiangmei Liu
, Shuilin Wu^*
, K.W.K. Yeung
, Yufeng Zheng
, Paul K. Chu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

110 Citations (Scopus)

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.

Original language	English
Pages (from-to)	209-221
Journal	Corrosion Science
Volume	102
Online published	19 Oct 2015
DOIs	https://doi.org/10.1016/j.corsci.2015.10.010
Publication status	Published - Jan 2016

Research Keywords

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

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10.1016/j.corsci.2015.10.010

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

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.",

keywords = "A. Alloy, A. Magnesium, B. EIS, C. Passive films",

author = "Xia Li and Zhengyang Weng and Wei Yuan and Xianzi Luo and Wong, \{Hoi Man\} and Xiangmei Liu and Shuilin Wu and K.W.K. Yeung and Yufeng Zheng and Chu, \{Paul K.\}",

year = "2016",

month = jan,

doi = "10.1016/j.corsci.2015.10.010",

language = "English",

volume = "102",

pages = "209--221",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Corrosion Resistance of Dicalcium Phosphate Dihydrate / Poly(Lactic-Co-Glycolic Acid) Hybrid Coating on AZ31 Magnesium Alloy

AU - Li, Xia

AU - Weng, Zhengyang

AU - Yuan, Wei

AU - Luo, Xianzi

AU - Wong, Hoi Man

AU - Liu, Xiangmei

AU - Wu, Shuilin

AU - Yeung, K.W.K.

AU - Zheng, Yufeng

AU - Chu, Paul K.

PY - 2016/1

Y1 - 2016/1

N2 - 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.

AB - 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.

KW - A. Alloy

KW - A. Magnesium

KW - B. EIS

KW - C. Passive films

UR - https://www.scopus.com/pages/publications/84959092681

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84959092681&origin=recordpage

U2 - 10.1016/j.corsci.2015.10.010

DO - 10.1016/j.corsci.2015.10.010

M3 - RGC 21 - Publication in refereed journal

SN - 0010-938X

VL - 102

SP - 209

EP - 221

JO - Corrosion Science

JF - Corrosion Science

ER -

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

Abstract

Research Keywords

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