شماره ركورد كنفرانس :
3811
عنوان مقاله :
Effect of graphene on corrosion behavior of hydroxyapatite coating on magnesium AZ31
پديدآورندگان :
Saremi Mohsen Saremi@ut.ac.ir PhD of Metallurgy and Materials Engineering, University of Birmingham, Professor, Metallurgy and Materials Engineering , Ahangari M. Master Student, Corrosion and Materials Protection, University of Tehran, School of Metallurgy and MaterialsEngineering, Faculty of Engineering, University of Tehran, Tehran, Iran
كليدواژه :
Hydroxyapatite , Graphene , Magnesium , Electrophoretic
عنوان كنفرانس :
ششمين كنفرانس بين المللي مهندسي مواد و متالوژي و يازدهمين همايش ملي مشترك انجمن مهندسي متالوژي و مواد ايران و انجمن علمي ريخته گري ايران
چكيده فارسي :
Magnesium alloy is used as biomaterial due to its unique properties, but the high corrosion rate of Mg in biomedical Mg alloys is concerned. In this present work, nanostructured hydroxyapatite (n-HAp) and hydroxyapatite/grapheme (HA/G) composite coatings via electrophoretic deposition (EPD) method applied on magnesium surface. The electrochemical corrosion behavior of magnesium alloy, hydroxyapatite and HA/graphene coated Mg are studied in simulated body fluid (SBF). The electrochemical corrosion behavior of the Mg and HA/G coated Mg in the simulated body fluid at 37o C are also investigated using Electrochemical Impedance Spectroscopy (EIS) analysis. The tafel plot tests were carried out to evaluate the corrosion behavior of the coated and uncoated specimens. Results revealed that the HA/G coated AZ31 Mg alloy samples with lower corrosion current density leads to a lower Mg degradation rate.
