Electrochemical Impedance Spectroscopy (EIS) Evaluation of Hydroxyapatite-Coated Magnesium in Different Corrosion Media

Abstract:

Magnesium corrosion has been identified as the main challenge that limits the implementation of this material into various applications, including biomaterials. Simple chemical conversion coatings have been employed in order to minimize the corrosion problems. In this paper, hydroxyapatite-coated magnesium were fabricated by using chemical conversion coatings and the corrosion behaviour of the coated samples were evaluated inside different corrosion media (Ringers, SBF, and PBS) by using electrochemical impedance spectroscopy (EIS). EIS reveals the electrical properties of the coatings towards corrosion attack by the corrosion media. The corrosiveness of the tested solutions was given by (from least to the most aggressive): PBS ˂ SBF ˂ Ringers.

• Periodical: Solid State Phenomena (Volume 280)
• Pages: 243-247
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.280.243
• Online since: August 2018
• Authors: Mohd Amin Farhan Zaludin*, Zul Azhar Zahid Jamal, Mohd Nazree B. Derman, Mohd Zaheruddin Kasmuin
• Keywords: Electrochemical Impedance Spectroscopy, Hydroxyapatite Coating, Magnesium

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