Abstract A flower-like structure responsible for improving the corrosion resistance of AZ31 Mg alloy was successfully obtained by plasma electrolytic oxidation (PEO) followed by post treatment. The PEO coatings samples obtained in electrolytes with/without ZrO2 underwent to subsequent immersion treatment in 8-hydroxyquinolate (8-HQ) solution for 72 h. It was observed that the formation of flower-like bis (8-hydroxyquinoline) magnesium inside the micro-pores of PEO coating was triggered when the coating was formed from electrolyte without ZrO2. As a result, a significant improvement in the corrosion resistance of Mg alloy was obtained.

中文翻译：

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花状结构的形成以优化镁合金的耐蚀性

摘要 通过等离子体电解氧化（PEO）和后处理，成功获得了一种花状结构，可以提高AZ31镁合金的耐腐蚀性能。在含/不含 ZrO2 的电解质中获得的 PEO 涂层样品随后在 8-羟基喹啉 (8-HQ) 溶液中浸泡处理 72 小时。据观察，当涂层由不含 ZrO2 的电解质形成时，会触发 PEO 涂层微孔内花状双（8-羟基喹啉）镁的形成。结果，获得了镁合金耐腐蚀性的显着改善。