交流电铝合金微弧氧化电压参数研究  

Study on Voltage Parameters Variation During Micro-arc Oxidation on Al Alloy by AC Power

作　　者：马晋[1] 胡正前[2] 

机构地区：[1]武汉理工大学工程训练中心,湖北武汉430070 [2]武汉理工大学机电工程学院,湖北武汉430070

出　　处：《热加工工艺》2012年第18期142-144,共3页Hot Working Technology

摘　　要：在不同浓度硅酸盐电解液中,采用交流电源对2A12铝合金试样进行微弧氧化处理试验,通过测量电极间电压和辅助电极间电压,根据电压参数的变化分析研究在交流电微弧氧化过程中氧化膜的生长机理,发现适当增大电解液浓度可降低氧化膜击穿时的电极电压。In different concentration silicate electrolyte,the test of micro-arc oxidation on 2A12 aluminum alloy by AC power was investigated.The electrode voltage and the auxiliary electrode voltage were measured.According to the variation analysis of the voltage parameters in micro-arc oxidation process,the formation mechanism of the oxide film was studied.The results show that the addition of appropriate electrolyte concentration can reduce the voltage of electrodes when the oxidation film is broken down.

关 键 词：微弧氧化 陶瓷氧化膜 辅助电极 

分 类 号：TG174.4[金属学及工艺—金属表面处理]