刘荣明,郭锋,李鹏飞

• 1:内蒙古工业大学材料科学与工程学院
• 2:内蒙古工业大学材料科学与工程学院
• 3:内蒙古工业大学材料科学与工程学院 内蒙古呼和浩特010051
• 4:内蒙古呼和浩特010051

摘要(Abstract)：

研究了正向和负向电压对6063铝合金微弧氧化陶瓷层形成的影响,并结合微弧氧化过程中正向电流密度的变化,对影响机理进行了探讨。结果表明,提高正负向电压均有利于提高陶瓷层的厚度与均匀性。当正负向电压从420V/120V提高到480V/200V时,陶瓷层厚增加了一倍;负向电压对陶瓷层形成的影响更加显著,当保持正向电压440V不变,负向电压从120V提高到200V时,层厚增加了约60%,均匀性明显提高。正负向电压提高时,通过试样的正向电量随之增大,而且与陶瓷层厚度之间有着较好的线性关系。正向和负向电压分别通过加快物质的迁移和强化膜层的击穿从而促进陶瓷层的形成。

关键词(KeyWords)： 微弧氧化;铝合金;陶瓷层;电压参数

Abstract:

Keywords:

基金项目(Foundation): 内蒙古自然科学基金项目(200508010703)

作者(Author): 刘荣明,郭锋,李鹏飞

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