We report the enhanced mechanical properties of AZ31 magnesium alloys by plasma electrolytic oxidation (PEO) coating in NaOH, Na2SiO3, KF and NaH2PO4·2H2O 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.

中文翻译：

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通过等离子体电解氧化（PEO）增强的可生物降解镁合金的机械性能和增强的耐腐蚀性。

我们报告了在含NaOH，Na2SiO3，KF和NaH2PO4·2H2O的电解质中通过等离子电解氧化（PEO）涂层增强了AZ31镁合金的机械性能。PEO涂层的AZ31 Mg合金（PEO-AZ31）的机械性能（包括耐磨性，表面硬度和弹性模量）提高了。Hank溶液中的DC极化表明在含KF的电解质中PEO涂层的耐腐蚀性显着提高。基于这些结果，PEO涂层方法显示出可用于需要可调节腐蚀和机械性能的可生物降解植入物应用的潜力。