通过等离子体电解氧化（PEO）提高可生物降解镁合金的力学性能和耐腐蚀性。
Enhanced mechanical properties and increased corrosion resistance of a biodegradable magnesium alloy by plasma electrolytic oxidation (PEO).
作者信息
White Leon, Koo Youngmi, Neralla Sudheer, Sankar Jagannathan, Yun Yeoheung
机构信息
FIT BEST Laboratory, Engineering Research Center, Department of Chemical, Biological, and Bio Engineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
Jet-Hot LLC, Burlington, NC 27215, USA.
出版信息
Mater Sci Eng B Solid State Mater Adv Technol. 2016 Jun;208:39-46. doi: 10.1016/j.mseb.2016.02.005. Epub 2016 Feb 26.
Abstract
We report the enhanced mechanical properties of AZ31 magnesium alloys by plasma electrolytic oxidation (PEO) coating in NaOH, NaSiO, KF and NaHPO·2HO containing electrolytes. Mechanical properties including wear resistance, surface hardness and elastic modulus were increased for PEO-coated AZ31 Mg alloys (PEO-AZ31). DC polarization in Hank's solution indicating that the corrosion resistance significantly increased for PEO-coating in KF-contained electrolyte. Based on these results, the PEO coating method shows promising potential for use in biodegradable implant applications where tunable corrosion and mechanical properties are needed.
摘要
我们报道了通过在含有NaOH、NaSiO、KF和NaHPO·2HO的电解质中进行等离子体电解氧化（PEO）涂层处理来增强AZ31镁合金的力学性能。对于经过PEO涂层处理的AZ31镁合金（PEO-AZ31），其包括耐磨性、表面硬度和弹性模量在内的力学性能得到了提高。在汉克溶液中的直流极化表明，在含KF的电解质中进行PEO涂层处理时，耐腐蚀性显著提高。基于这些结果，PEO涂层方法在需要可调节腐蚀和力学性能的生物可降解植入应用中显示出有前景的潜力。
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