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The application of magnesium and its alloy as degradable biomaterials is mainly confined due to its high degradation rate in physiological environment.This research focused on the effects of micro-arc oxidation (MAO) on biodegradable behavior of Mg-Y-Zn magnesium alloy in a simulated body fluid(SBF).The corrosion rate of alloys was gauged by means of hydrogen evolution volume measurement and mass-loss method.Scanning electron microscope(SEM) was utilized to observe the surface of the magnesium alloy and the cross-section of oxidation coating layer before and after corrosion.The Mg-Y-Zn alloy with thicker oxidation coating exhibited greater corrosion resistance during the immersion test for 240 h.
The application of magnesium and its alloys as degradable biomaterials is mainly confined due to its high degradation rate in physiological environment. This research focuses on the effects of micro-arc oxidation (MAO) on biodegradable behavior of Mg-Y-Zn magnesium alloy in a simulated body fluid (SBF). The corrosion rate of alloys was gauged by means of hydrogen evolution volume measurement and mass-loss method. Scanning electron microscope (SEM) was utilized to observe the surface of the magnesium alloy and the cross-section of oxidation coating layer before and after corrosion.The Mg-Y-Zn alloy with thicker oxidation coating coating greater corrosion resistance during the immersion test for 240 h.