Conventional micro-arc oxidation (MAO) technology, due to the randomness and transient nature of arc discharge, produces coatings with numerous defects, poor abrasion resistance, and inadequate ability to effectively block the intrusion of corrosive media. In this paper, ultrasonic-assisted technology was used to study the effect of different ultrasonic power regulation on the performance optimization of MAO coating on 6061 aluminum alloy. The coating microstructure and elemental composition were characterized by X-ray diffraction, scanning electron microscopy and energy dispersive spectrometer, and its hardness, wear resistance, corrosion resistance and other properties were tested. The results show that the prepared coating has the characteristics of high hardness, good wear resistance and excellent corrosion resistance under the assistance of ultrasonic power of 50 W. This is mainly attributed to the cavitation effect, mechanical effect and thermal effect generated by the corresponding ultrasonic power, which effectively enhances the surface quality, performance and service life of the coating. This study provides valuable insights into the interaction between ultrasound power and the resulting MAO coatings, and has important implications for optimizing ultrasound-assisted processes and improving coating properties.

中文翻译：

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超声功率调制对铝合金微弧氧化涂层性能优化的影响


传统的微电弧氧化 （毛） 技术，由于电弧放电的随机性和瞬态性，产生的涂层缺陷众多，耐磨性差，无法有效阻断腐蚀性介质的侵入。本文采用超声辅助技术研究了不同超声功率调节对 6061 铝合金 毛 涂层性能优化的影响。通过X射线衍射、扫描电子显微镜和能量色散光谱仪对涂层的微观组织和元素组成进行了表征，并测试了其硬度、耐磨性、耐腐蚀性等性能。结果表明，所制备的涂层在50 W超声功率的辅助下具有硬度高、耐磨性好、耐腐蚀性优异等特点。这主要归因于相应的超声波功率产生的空化效应、机械效应和热效应，有效地提高了涂层的表面质量、性能和使用寿命。这项研究为超声功率与所得的 毛 涂层之间的相互作用提供了有价值的见解，对优化超声辅助过程和改善涂层性能具有重要意义。