微弧氧化锻铝表面形成陶瓷膜的工艺研究  

Study of the Technology of Microarc Oxidizing Coatings on Forged Aluminum Alloy

作　　者：刘黎[1] 何翔[2] 

机构地区：[1]中南民族大学计算与实验中心,武汉430074 [2]中南民族大学电子信息工程学院,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2006年第2期63-65,共3页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家民委科研基金资助项目(05ZN03)

摘　　要：用自行研制的微弧氧化电源在锻铝表面生成了氧化物陶瓷膜.观察了膜层表面形貌,测试了表面硬度,探讨了微弧放电对陶瓷膜和基体性能组织的影响.结果表明:锻铝表面的陶瓷膜随氧化时间的延长而增厚,但随氧化时间的继续增加膜层不再增厚;陶瓷膜的表面硬度是基体硬度的10倍以上,大大提高了材料表面的耐磨、耐蚀特性.This paper introduces the forming of ceramic oxide coating on the surface of forged aluminum alloy with the microarc oxidation power made by ourselves. The surface morphology of the coatings was observed, the microarc hardness was tested, the effect of microarc oxidation for the ceramic coating and performance of the subatrate was discussed. The results show that the ceramic coatings on the forged aluminum alloys increase with oxidizing time, but the ceramic coatings on the forged aluminum alloys can＇t increase when the oxidizing time keep to enough . The micoarc hardness of the ceramic coating is ten times more than the substrate＇s, the performance of wear and corrsion-resistance is very increased.

关 键 词：微弧氧化 锻铝 陶瓷膜 显微硬度 

分 类 号：TG146.2[一般工业技术—材料科学与工程]