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800 h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.
参考文献
| [1] | R.F.Zhang,D.Y.Shan,R.S.Chen,E.H.Han,Effects of electric parameters on properties of anodic coatings formed on magnesium alloys,Materials Chemistry and Physics,107,356(2008) |
| [2] | (2008)(骆海贺,蔡启舟,魏伯康,余博,何剑,李定骏,添加剂浓度对微弧氧化陶瓷层结构及耐蚀性的影响,中国有色金属学报,18(6),1082(2008)) |
| [3] | JIANG Bailing,ZHANG Shufen,WU Guojian,Study of corrosion resistance on micro arc oxidation ceramic coatings on magnesium alloy,J Chin.Soc.Corros.,22(5),301(2002)(蒋百灵,张淑芬,吴国建,镁合金微弧氧化陶瓷层耐蚀性的研究,中国腐蚀与防护学报,22(5),301(2002)) |
| [4] | S.Verdier,M.Boinet,S.Maximovitch,F.Dalard,Formation,structure and composition of anodic films on AM60 magnesium alloy obtained by DC plasma anodizing,Corrosion Science,47,1430(2005) |
| [5] | S.V.Gnedenkova,O.A.Khrisanfova,A.G.Zavidnaya,S.L.Sinebrukhov,P.S.Gordienko,S.Iwatsubo,A.Matsui,Composition and adhesion of protective coatings on aluminum,Surface and Coatings Technology,145,146(2001) |
| [6] | LUO Xiaoping,XIA Lanting,ZANG Dongmian,Present state of Chemical Conversion Treatment on Face of Magnesium Alloys,Reseearch studies on foundry equipment,2,44(2007)(罗小萍,夏兰廷,臧东勉,镁合金表面化学转化处理研究现状,铸造设备研究,2,44(2007)) |
| [7] | G.P.Writz,S.D.Bown,W.M.Kriven,Ceramic coatings by anodic spark deposition,Materials and Manufacturing Processes,6(1),87(1991) |
| [8] | XUE Wenbin,SHI Xiuling,HUA Ming,LI Yongliang,Preparation of anti-corrosion films by microarc oxidation on an AI-Si alloy,Appl.Surf.Sci.,253,6118(2007) |
| [9] | C.E.Barchiche,E.Rocca,J.Hazan,Corrosion behaviour of Sn-containing oxide layer on AZ91D alloy formed by plasma electrolytic oxidation,Surf.Coat.Technol.,202,4145(2008) |
| [10] | H.Y.Zheng,Y.K.Wang,B.S.Li,G.R.Han,The effects of Na2WO4 concentration on the properties of microarc oxidation coatings on aluminum alloy,Materials Letters,59,139(2005) |
| [11] | G.Sandararajan,L.Rama Krishna,Mechanisms underlying the formation of thick alumina coatings through the MAO coating technology,Surf.Coat.Technol.,167,269(2003) |
| [12] | XUE Wenbing,DENG Zhiwei,CHEN Ruyl,ZHANG Tonghe,MA Hal,Microstructure and properties of ceramic coatings produced on 2024 aluminum alloy by microarc oxidation,Journal of Materials Science,36,2615(2001) |
| [13] | LIANG Jun,HU Litian,HAS Jingcheng,Improvement of corrosion properties of microarc oxidation coating on magnesium alloy by optimizing current density parameters,Appl.Surf.Sci.,253,6939(2007) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%