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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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镁合金微弧电泳复合膜层的微观结构和抗腐蚀性能
Keywords: 金属材料,微弧电泳,复合膜层,微观结构,耐蚀性
Abstract:
？采用恒压模式在硅酸盐系电解液中制备镁合金微弧氧化陶瓷层,对比研究了微弧电泳和直接电泳镁合金的截面形貌、结合力大小以及抗腐性能差异.结果表明:在镁合金微弧氧化陶瓷层的表面可制备电泳有机层,简化了电泳工艺;在微弧电泳复合膜层间形成机械咬合力和化学键力,附着力等级可达1级;经800h中性盐雾腐蚀试验后,复合膜层腐蚀增重量和样品表面的形貌均没有明显的变化;与微弧氧化陶瓷层和直接电泳有机层相比,微弧电泳复合膜层的电化学稳定性显著增强,腐蚀电流相分别减少了约5个和2个数量级.
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