高强度铸造铝合金ZL205微弧氧化陶瓷膜的耐腐蚀性能研究  

Study on Corrosion Resistance of Micro-Arc Oxidation Ceramic Coating of High Strength Casting Aluminum Alloy

作　　者：崔世海[1] 韩建民[1] 李卫京[1] 徐向阳[1] 刘元富[1] 

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《航空材料学报》2006年第2期20-22,共3页Journal of Aeronautical Materials

基　　金：国家863资助项目(2003AA331190)

摘　　要：采用中性盐雾腐蚀试验法研究厚度对高强度铸造铝合金ZL205微弧氧化陶瓷膜的耐腐蚀性能的影响。结果表明,微弧氧化处理能显著提高ZL205的耐腐蚀性能,随着厚度的增加,陶瓷膜的耐腐蚀性能提高,但在厚度达到一定值后,陶瓷膜的耐腐蚀性能提高不明显。SEM和XRD结果表明,随着厚度的增加,微弧氧化膜的表面形貌和相结构都发生变化,从而导致微弧氧化膜的耐腐蚀性能发生变化。The influence of thickness of micro-arc oxidation( MAO) coatings on the corrosion resistance of high strength casting aluminum alloy ZL205 was investigated by using salt spray test. It was found that MAO coatings improved the corrosion resistance of ZL205 alloy obviously. The corrosion resistance of MAO coatings increased with the increase of coating thickness. When the coating thickness was thicker than 30μm, the corrosion resistance of PEO coating increased only a little with the increase of PEO coating t...

关 键 词：高强度铸造铝合金 微弧氧化 陶瓷膜 腐蚀 

分 类 号：TG174.4[金属学及工艺—金属表面处理]