Corrosion study of graphene oxide coatings on AZ31B magnesium alloy

Muhammad Faheem Maqsood; Mohsin Ali Raza; Faizan Ali Ghauri; Zaeem Ur Rehman; Muhammad Tasadaq Ilyas

doi:10.1007/s11998-020-00350-3

Corrosion study of graphene oxide coatings on AZ31B magnesium alloy

Muhammad Faheem Maqsood
, Mohsin Ali Raza
, Faizan Ali Ghauri
, Zaeem Ur Rehman^*
, Muhammad Tasadaq Ilyas

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

The aim of this study was to produce graphene oxide (GO) coatings on biodegradable AZ31B magnesium (Mg) alloy. GO was synthesized by improved Hummers’ method, and a suspension was prepared in deionized water by ultrasonication. GO coatings were developed on AZ31B Mg alloy by electrophoretic deposition (EPD). The EPD parameters, such as voltage and time, were optimized to obtain uniform GO coatings. Characterization was carried out using Fourier transform infrared spectroscopy, X-ray diffraction, atomic force microscopy (AFM), and scanning electron microscopy. GO was found to have a thickness of approximately 0.7–1 nm as determined by AFM. Electrochemical behavior of coatings was evaluated by Tafel analysis and electrochemical impedance spectroscopy (EIS) in Ringer’s lactate solution. GO coatings improved the corrosion resistance of the AZ31B Mg alloy by 16× in Ringer’s lactate solution as compared to bare Mg alloy.

Original language	English
Pages (from-to)	1321-1329
Number of pages	9
Journal	Journal of Coatings Technology and Research
Volume	17
Issue number	5
Early online date	29 May 2020
DOIs	https://doi.org/10.1007/s11998-020-00350-3
Publication status	Published - Sept 2020
Externally published	Yes

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@article{f1b77222b00643c29ad4a076c71d894d,

title = "Corrosion study of graphene oxide coatings on AZ31B magnesium alloy",

abstract = "The aim of this study was to produce graphene oxide (GO) coatings on biodegradable AZ31B magnesium (Mg) alloy. GO was synthesized by improved Hummers{\textquoteright} method, and a suspension was prepared in deionized water by ultrasonication. GO coatings were developed on AZ31B Mg alloy by electrophoretic deposition (EPD). The EPD parameters, such as voltage and time, were optimized to obtain uniform GO coatings. Characterization was carried out using Fourier transform infrared spectroscopy, X-ray diffraction, atomic force microscopy (AFM), and scanning electron microscopy. GO was found to have a thickness of approximately 0.7–1 nm as determined by AFM. Electrochemical behavior of coatings was evaluated by Tafel analysis and electrochemical impedance spectroscopy (EIS) in Ringer{\textquoteright}s lactate solution. GO coatings improved the corrosion resistance of the AZ31B Mg alloy by 16× in Ringer{\textquoteright}s lactate solution as compared to bare Mg alloy.",

keywords = "Atomic force microscopy, Coatings, Corrosion, Graphene oxide, Improved Hummers{\textquoteright} method, Magnesium alloys, Ringer{\textquoteright}s lactate",

author = "Maqsood, \{Muhammad Faheem\} and Raza, \{Mohsin Ali\} and Ghauri, \{Faizan Ali\} and Rehman, \{Zaeem Ur\} and Ilyas, \{Muhammad Tasadaq\}",

note = "Publisher Copyright: {\textcopyright} 2020, American Coatings Association.",

year = "2020",

month = sep,

doi = "10.1007/s11998-020-00350-3",

language = "English",

volume = "17",

pages = "1321--1329",

journal = "Journal of Coatings Technology and Research",

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TY - JOUR

T1 - Corrosion study of graphene oxide coatings on AZ31B magnesium alloy

AU - Maqsood, Muhammad Faheem

AU - Raza, Mohsin Ali

AU - Ghauri, Faizan Ali

AU - Rehman, Zaeem Ur

AU - Ilyas, Muhammad Tasadaq

PY - 2020/9

Y1 - 2020/9

N2 - The aim of this study was to produce graphene oxide (GO) coatings on biodegradable AZ31B magnesium (Mg) alloy. GO was synthesized by improved Hummers’ method, and a suspension was prepared in deionized water by ultrasonication. GO coatings were developed on AZ31B Mg alloy by electrophoretic deposition (EPD). The EPD parameters, such as voltage and time, were optimized to obtain uniform GO coatings. Characterization was carried out using Fourier transform infrared spectroscopy, X-ray diffraction, atomic force microscopy (AFM), and scanning electron microscopy. GO was found to have a thickness of approximately 0.7–1 nm as determined by AFM. Electrochemical behavior of coatings was evaluated by Tafel analysis and electrochemical impedance spectroscopy (EIS) in Ringer’s lactate solution. GO coatings improved the corrosion resistance of the AZ31B Mg alloy by 16× in Ringer’s lactate solution as compared to bare Mg alloy.

AB - The aim of this study was to produce graphene oxide (GO) coatings on biodegradable AZ31B magnesium (Mg) alloy. GO was synthesized by improved Hummers’ method, and a suspension was prepared in deionized water by ultrasonication. GO coatings were developed on AZ31B Mg alloy by electrophoretic deposition (EPD). The EPD parameters, such as voltage and time, were optimized to obtain uniform GO coatings. Characterization was carried out using Fourier transform infrared spectroscopy, X-ray diffraction, atomic force microscopy (AFM), and scanning electron microscopy. GO was found to have a thickness of approximately 0.7–1 nm as determined by AFM. Electrochemical behavior of coatings was evaluated by Tafel analysis and electrochemical impedance spectroscopy (EIS) in Ringer’s lactate solution. GO coatings improved the corrosion resistance of the AZ31B Mg alloy by 16× in Ringer’s lactate solution as compared to bare Mg alloy.

KW - Atomic force microscopy

KW - Coatings

KW - Corrosion

KW - Graphene oxide

KW - Improved Hummers’ method

KW - Magnesium alloys

KW - Ringer’s lactate

UR - https://www.scopus.com/pages/publications/85085710132

U2 - 10.1007/s11998-020-00350-3

DO - 10.1007/s11998-020-00350-3

M3 - Article

AN - SCOPUS:85085710132

SN - 1547-0091

VL - 17

SP - 1321

EP - 1329

JO - Journal of Coatings Technology and Research

JF - Journal of Coatings Technology and Research

IS - 5

ER -

Corrosion study of graphene oxide coatings on AZ31B magnesium alloy

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