دورية
Corrosion Resistance of Mg-4Zn Alloy with Amorphous Micro-Arc Oxidation Coating in Simulated Body Fluid
| العنوان: | Corrosion Resistance of Mg-4Zn Alloy with Amorphous Micro-Arc Oxidation Coating in Simulated Body Fluid |
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| المؤلفون: | Zhao, Li Chen, Liu, Shuang Jin, Qi, Yu Min, Cui, Chun Xiang |
| المصدر: | Materials Science Forum; April 2016, Vol. 852 Issue: 1 p1325-1333, 9p |
| مستخلص: | A binary Mg-4Zn alloy was fabricated as a potential degradable biomaterial. To improve the corrosion resistance of Mg-4Zn alloy, an amorphous micro-arc oxidation (MAO) coating was prepared on the Mg-4Zn substrate. Electrochemical measurements and immersion tests were employed to evaluate the corrosion resistance of the specimen in simulated body fluid (SBF). Electrochemical measurements show that the Mg-4Zn alloy covered with a MAO coating has a much lower corrosion current density and a much greater polarization resistance. Immersion tests suggest that the degradation of Mg-4Zn substrate is relatively serious during the initial 8 h of immersion although it has been protected by a MAO coating. When most micro-pores within the MAO coating have been filled with precipitates resulted from the corrosion of the metal substrate, the degradation of the Mg-4Zn substrate is significantly delayed. |
| قاعدة البيانات: | Supplemental Index |
Full Text Finder | تدمد: | 02555476 16629752 |
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| DOI: | 10.4028/www.scientific.net/MSF.852.1325 |