| AZ31镁合金化学转化膜形成的原位成像研究 |
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| 引用本文： | 高福勇,赵明,李婷婷,付亚楠.AZ31镁合金化学转化膜形成的原位成像研究[J].表面技术,2012,41(4):118-121. |
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| 作者姓名： | 高福勇 赵明 李婷婷 付亚楠 |
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| 作者单位： | 北方工业大学机电工程学院,北京,100144;中国科学院上海应用物理研究所,上海,201203 |
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| 基金项目： | 北京市人才强教深化骨干教师计划资助(PHR201008201);北京市教委科技计划项目(KM201010009013) |
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| 摘 要： | 利用同步辐射X射线实时成像技术,原位研究了处理液组分H3PO4,KMnO4及MnCO3对镁合金/处理液界面无铬化学转化膜形成过程的影响,并结合扫描电镜分析了所生成转化膜的表面形貌.研究结果表明:高能同步辐射X射线可以透过镁合金/处理液界面,利用原位成像技术能够实时观察转化膜的生长过程;KMnO4能够显著促进AZ31镁合金转化膜的形成,所得到的转化膜表面较平整,裂纹较少,而MnCO3对转化膜形成的促进作用有限.
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| 关 键 词： | 镁合金 同步辐射 转化膜 化学组分 |
| 收稿时间： | 2012/4/26 0:00:00 |
| 修稿时间： | 2012/8/20 0:00:00 |
In Situ Imaging Study of the Formation Process of Chromium-free Chemical Conversion Coating of AZ31 Magnesium Alloy |
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| GAO Fu-yong,ZHAO Ming,LI Ting-ting and FU Ya-nan.In Situ Imaging Study of the Formation Process of Chromium-free Chemical Conversion Coating of AZ31 Magnesium Alloy[J].Surface Technology,2012,41(4):118-121. |
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| Authors: | GAO Fu-yong ZHAO Ming LI Ting-ting and FU Ya-nan |
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| Affiliation: | 1.College of Mechanical and Electrical Engineering,North China University of Technology,Beijing 100144,China; 2.Chinese Academy of Sciences,Shanghai Institute of Applied Physics,Shanghai 201203,China) |
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| Abstract: | The influences of H3PO4,KMnO4 and MnCO3 on the formation process of chromium-free chemical conversion coating at magnesium alloy/conversion treatment solution interface by using synchrotron radiation were in situ studied.Furthermore,we analyzed the surface morphology of magnesium alloys through the sweep electron microscopy.The result shows that the high-energy synchrotron radiation X-ray can penetrate through the magnesium alloy/conversion treatment solution interface,the formation process of conversion coating can be observed in real time using in situ imaging technology.The potassium permanganate can improved the formation of conversion coating significantly,and the surface of the coating is smooth with less cracks.However,manganous carbonate can limitely improve the formation of the coating. |
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| Keywords: | magnesium alloy synchrotron radiation conversion coating chemical composition |
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