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首页> 外文期刊>International Journal of Electrochemical Science >Effects of Ultrasound on the Microstructure and Corrosion Behaviour of a PEO Coating
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Effects of Ultrasound on the Microstructure and Corrosion Behaviour of a PEO Coating

机译：超声波对PEO涂层组织和腐蚀行为的影响

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摘要

The plasma Plasma electrolytic oxidation (PEO) coatings were prepared on pure aluminium with andwithout the assistance application of ultrasound, respectively. The effect of ultrasound on the coatingmicrostructure, chemical and phase compositions, and on the corrosion resistance were investigated bymeans of using a the scanning electron microscope (SEM) equipped with an energy dispersivespectrometry (EDS), an X-ray diffractomerter (XRD), potentiodynamic polarization and electrochemicalimpedance spectroscopy (EIS). The results showed that ultrasound could advance the dielectricbreakdown time of the PEO coating, and homogenize the coating structure and the distributeion of Sielements in the coatings without affecting the phase composition. The corrosion resistance of the PEOcoating was also improved by ultrasound.
机译：分别在纯铝和无超声波辅助下在纯铝上制备等离子等离子体电解氧化（PEO）涂层。通过使用配备有能量色散谱仪（EDS），X射线衍射仪（XRD），电位动力学的扫描电子显微镜（SEM）研究了超声波对涂层微观结构，化学和相组成以及耐腐蚀性的影响。极化和电化学阻抗谱（EIS）。结果表明，超声可以延长PEO涂层的介电击穿时间，使涂层结构均匀，Sielements在涂层中的分布均匀，而不会影响相的组成。超声也提高了PEO涂层的耐腐蚀性。

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