|About this Abstract
||MS&T23: Materials Science & Technology
||Advanced Coatings for Wear and Corrosion Protection
||Effect of Micro-arc Oxidation Voltage on the Morphology and Electrochemical Properties of AZ31B Magnesium Alloy
||Kaab Bin Tayyab, Ameeq Farooq, Ahsan Saleem
|On-Site Speaker (Planned)
||Kaab Bin Tayyab
In this research work, micro-arc oxidation (MAO) is used to modify the AZ31B magnesium alloy surface to improve the degradation and corrosion properties in the simulated body fluid. Optimum voltages of 125 V, 200 V and 250 V were selected for MAO in sodium silicates, sodium fluoride and borax solution. The resulted surface modification was observed by stereomicroscope and Scanning Electron Microscope. Modified surface stability and corrosion resistance were also assessed in simulated body fluid i.e., Ringer’s Lactate at 37 ± 1 °C via electrochemical characterizations like open circuit potential and cyclic polarization. Results showed more uniform and stable MAO coating was obtained at 200 V which shows corrosion resistance than the other two coatings.