中文摘要：

为了实现有限元分析软件在微弧氧化技术中的应用，采用AnsoflMaxwell有限元软件对不同电极模式下微弧氧化槽中的静电场及阳极试件表面的电流密度分布进行了分析，并将计算结果与试验结论进行比对。提出边角效应的解决方案，并采用AnsoftMaxwell做出了定性分析。结果表明：单阴极模式下的电场强度较双阴极模式下的电场强度更弱、更稀疏，在两种电极模式下都出现了边角效应，双阴极模式下的边角效应更为突显。双阴极模式的最大电流密度值为5．1485×10。A／m2出现在阳极试件底部的两角上。当采用与微弧氧化槽等高等宽的两个平行板做阴阳极时，边角效应消失。

英文摘要：

Abstract： In order to realize the application of finite element analysis in micro-arc oxidation, electrostatic field in micro-arc oxidation tank under different electrode mode and distribution of anode current density on surface of the specimen were analyzed by Ansoft Maxwell finite element software. Then, calculated results were compared with experiment conclusion. Solutions of edge effect were put forward, and were analyzed qualitatively by Ansoft Maxwell. The results show that electric field intensity of single cathode mode is weaker and sparser than dual cathode mode. Under the both electrode modes, edge effect appeared. The edge effects of dual cathode mode is more obvious. Maximum current density value of dual cathode mode is 5. 1485 x 104 A/m2, appearing at two closed angles of the bottom of anode specimen surface. When using parallel cathode and anode plate, of which height and width are equal to micro-arc oxidation tank, the edge effect disappears.