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首页> 外文期刊>Journal of Materials Engineering and Performance >Study of Coating Growth Behavior During the Plasma Electrolytic Oxidation of Magnesium Alloy ZK60
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Study of Coating Growth Behavior During the Plasma Electrolytic Oxidation of Magnesium Alloy ZK60

机译：ZK60镁合金等离子体电解氧化过程中涂层生长行为的研究

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摘要

Plasma electrolytic oxidation technique was used to coat ZK60 magnesium alloy in a silicate-based electrolyte. Effects of oxidation time on the morphology, phase structure, and corrosion resistance of the resulting coatings were systematically investigated by scanning electron microscopy, energy-dispersive spectrometry, x-ray diffraction, x-ray photoelectron spectroscopy, and potentiodynamic polarization. The main components of the inner and the outer coating layers were MgO and Mg2SiO4, respectively. It was also found that the oxidation time has a significant impact on the corrosion resistance properties of the coatings. The coating obtained within the oxidation time of 360 s exhibited a corrosion current of 7.6 x 10(-8) A/cm(2) in 3.5 wt.% NaCl solution, which decreased significantly when comparing with the pristine magnesium alloy.
机译：等离子电解氧化技术用于在硅酸盐基电解质中涂覆ZK60镁合金。通过扫描电子显微镜，能量分散光谱，X射线衍射，X射线光电子能谱和电位动力学极化，系统地研究了氧化时间对所得涂层的形态，相结构和耐蚀性的影响。内涂层和外涂层的主要成分分别是MgO和Mg2SiO4。还发现氧化时间对涂层的耐腐蚀性具有重要影响。在360 s的氧化时间内获得的涂层在3.5 wt％的NaCl溶液中表现出7.6 x 10（-8）A / cm（2）的腐蚀电流，与原始镁合金相比，腐蚀电流显着降低。

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