| 镁合金表面脉冲电沉积Zn过渡层的研究 |
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| 引用本文： | 常立民,;周莹,;刘伟,;段小月.镁合金表面脉冲电沉积Zn过渡层的研究[J].吉林师范大学学报（自然科学版）,2014(2):105-108. |
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| 作者姓名： | 常立民 ;周莹 ;刘伟 ;段小月 |
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| 作者单位： | [1]吉林师范大学环境友好材料制备与应用教育部重点实验室,吉林四平136000; [2]吉林师范大学化学学院,吉林四平136000; [3]吉林师范大学环境科学与工程学院,吉林四平136000 |
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| 基金项目： | 吉林省教育厅“十二五”科技项目（吉教科字2012第172号） |
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| 摘 要： | 采用电沉积方法在镁合金表面制备了一种环境友好型Zn过渡层.利用SEM、XRD研究了直流和脉冲电沉积方式对Zn过渡层形貌及微观结构的影响,采用电化学方法研究了Zn过渡层的耐蚀性.结果表明,Zn过渡层在镁合金表面电沉积Sn-Ni合金过程中是必不可少的.在相同的厚度下,脉冲电沉积方式的应用更有利于制备平整致密、无孔且耐蚀性高的Zn过渡层.只有以脉冲Zn为过渡层才能获得良好的后续Sn-Ni合金镀层.
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| 关 键 词： | 镁合金 电沉积 脉冲 过渡层 耐蚀性 |
Pulse Plated Zn Transition Layer on Magnesium Alloys |
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| Institution: | CHANG Li-min,ZHOU Ying,LIU Wei,DUAN Xiao-yue(1.Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Siping 136000, China ; 2. College of Chemistry, Jilin Normal University, Siping 136000, China ; 3. College of Environmental Science and Engineering,Jilin Normal University, Siping 136000, China) |
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| Abstract: | In this paper,an environmental friendly Zn transition layer was prepared by electrodeposition. The effects of direct current（DC） and pulse current（PC） plating modes on morphology and microstructure of Zn transition layers were investigated by scanning electron microscopy and X-ray diffraction. The corrosion resistance of the Zn transition layers was analyzed by electrochemical method. The results showed that the Zn transition layer was essential for subsequent electroplating Sn-Ni alloy coating on magnesium alloy. For the same thickness,the application of the PC plating mode was more favorable to prepare compact,smooth,nonporous and high corrosion resistance Zn transition layers. Moreover,a Sn-Ni alloy coating could be successfully plated on the surface of PC plated Zn transition layer on magnesium alloy. |
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| Keywords: | magnesium alloy electrodeposition pulse current transition layer corrosion resistance |
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