不同电源模式下微弧氧化制备陶瓷膜的性能对比研究  

The Performances of Ceramic Membrane Prepared by Micro Arc Oxidation Under Different Power Modes

作　　者：韩勇[1] 王志义[1] 

机构地区：[1]青岛科技大学材料科学与工程学院,青岛266042

出　　处：《山东陶瓷》2012年第3期7-10,共4页Shandong Ceramics

摘　　要：在硅酸钠、钨酸钠、硼酸、偏铝酸钠和乙二胺四乙酸二钠的复合电解液中,分别采用交流电源和脉冲电源,利用微弧氧化方法,在ZL102铸造铝合金上制备了陶瓷膜层。通过扫描电镜(SEM)观察,交流电源模式制备的陶瓷膜层表面孔洞少,比用脉冲电源制备的陶瓷膜形貌好。利用电化学方法分析了陶瓷层的防腐蚀性能,交流电源制备的陶瓷膜层耐腐蚀性能好。The ceramic coatings are prepared by micro arc oxidation on the ZL102 cast aluminum alloy,in the composite electrolyte of sodium silicate,tungsten,boric acid,sodium metaaluminate,and EDTA（Ethylene Diamine Tetraacetic Acid）,using alternating current（AC） power and pulse power respectively.According to the observations with scanning electron microscopy（SEM）,the pores on the surface of ceramic coating prepared by AC power are less than those prepared by pulse power,and with a better ceramic membrane morphology.The corrosion resistance of the ceramic layers is analyzed in the method of electrochemical,and the ceramic coating prepared by AC power supply has a better corrosion resistance.

关 键 词：铸造铝合金 微弧氧化 陶瓷膜 形貌 耐蚀性能 

分 类 号：TG174.44[金属学及工艺—金属表面处理]