王泽鑫,吕伟刚,陈静,芦笙

• 1:江苏省先进焊接技术重点实验室江苏科技大学
• 2:镇江耐丝新型材料有限公司

摘要(Abstract)：

在优化的铝酸钠-磷酸钠复合电解液体系中,以ZK60镁合金为研究对象进行微弧氧化实验,并结合电压-时间曲线和微弧氧化各个阶段膜层的微观形貌以及物相分析等方面对复合电解液体系中微弧氧化过程及成膜机理进行了探讨。结果表明,该体系下微弧氧化过程分为了氧化膜生成阶段、微弧氧化膜层快速生长阶段和电压微小下降过程以及微弧氧化膜层的修整阶段。膜层的物相分析表明微弧氧化初期膜层主要成分为MgO,Mg和MgZn2,中后期膜层中的主体相为尖晶石结构的MgAl2O4和方镁石结构的MgO,微弧氧化的最后阶段对膜层的物相组成没有影响。

关键词(KeyWords)： 镁合金;复合电解液;微弧氧化;机理

Abstract:

Keywords:

基金项目(Foundation): 江苏省先进焊接技术重点实验室基金(JSAWT-11)

作者(Author): 王泽鑫,吕伟刚,陈静,芦笙

DOI: 10.13289/j.issn.1009-6264.2014.04.037

参考文献(References)：

• [1]Guo H F,An M Z,Huo H B.Microstructure characteristic of ceramic coatings fabricated on magnesium alloys by micro-arc oxidation in alkaline silicate solutions[J].Applied Surface Science,2006,252(22):7911-7916.
• [2]Butyagin P I,Khokhryakov Y V,Mamaev A I.Microplasma systems for creating on aluminum alloys[J].Materials Letters,2003,57(11):1748-1751.
• [3]郅青,高瑾,董超芳,等.AZ91D镁合金微弧氧化膜的腐蚀行为研究[J].金属学报,2008,44(8):986-990.ZHI Qing,GAO Jin,DONG Chao-fang,et al.Corrosion behavior of microarc oxidation film on AZ91D magnesium alloy[J].Acta Metallurgica Sinica,2008,44(8):986-990.
• [4]Xue W B,Wang C,Li Y,et al.Effect of micro-arc discharge surface treatment on the tensile properties of Al Cu Mg alloy[J].Materials Letters,2002,56(5):737-743.
• [5]Lu S,Wang Z X,Chen J,et al.Optimization of dual electrolyte and characteristic of micro-arc oxidation coating fabricated on ZK60 Mg alloy[J].Transactions of Nonferrous Metals Society of China,2011,21(4):929-935.
• [6]徐柏明.工艺参数对镁合金微弧氧化模层微观组织和性能的影响[D].吉林大学,2007:1-2.
• [7]Vijh A K.Sparking voltages and side reactions during anodization of valve metals in terms of electron tunnelling[J].Corrosion Science,1971,11(6):411-417.
• [8]Yahalom J.Proc shmp oxic-Electrolyte Interfaces[J].The Journal of Electrochem Inc,1973,10:503-506.
• [9]Van T B,Brown S D,Wirtz G P.Anode spark reaction products in aluminate tungstate and silicate[J].Bulletins American Ceramic Society.1977,56(6):563-566.
• [10]Mathieu S,Rapin C,Hazen J,et al.Corrosion behavior of high pressure die-cast and semi-solid cast AZ91D alloys[J].Corrosion Science,2002,44(12):2727-2756.
• [11]Shi Z M,Song G L,Andrej A.The corrosion performance of anodized magnesium alloys[J].Corrosion Science,2006,48(11):1939-1959.
• [12]Fang D R,Wang J H,Yang J.Electrolyte optimization of microarc oxidation of magnesium alloy[J].Transactions of Materials and Heat Treatment,2004,25(5):1072-1075.

文章评论(Comment)：