镁合金微弧氧化技术的研究概况

General Situation on Research of Micro-Arc Oxidation Technology of Magnesium Alloys

微弧氧化技术是提高镁合金耐蚀性的重要表面处理方式之一。主要阐述了镁合金微弧氧化的工作原理、工艺过程及其应用领域,并从电解液体系、电参数对微弧氧化陶瓷层组织和性能的影响等方面,系统分析了各种主电解液、添加剂、电压、电流密度在微弧氧化过程中所起到的作用,深入分析了镁合金微弧氧化的研究现状,并指出了镁合金微弧氧化应用过程中存在的问题及未来的发展趋势。

Micro - arc oxidation technology is one of the important surface treatment methods for improving the corrosion resistance of magnesium alloys. This paper mainly introduced the principle, process and application field of micro-arc oxidation of magnesium alloys. From the effects of various main electrolytes, additives, voltage and current density on micro-arc oxidation, the influences of electrolyte system and electrical pa- rameters on microstructure and properties of micro-arc oxidation ceramic coating were analyzed systematically. Furthermore, the research status of micro- arc oxidation of magnesium alloys was deeply studied, and the existing problems in the micro - arc oxidation application process of magnesium alloys as well as its future development trend were pointed out.