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| 电弧喷涂Zn-Al-Mg-La-Ce涂层的耐腐蚀性能 | |
| 引用本文： | 邢士波,肖葵,李丽,李晓刚,刘安强,王恩清. 电弧喷涂Zn-Al-Mg-La-Ce涂层的耐腐蚀性能[J]. 北京科技大学学报, 2012, 34(10): 1167-1172 |
| 作者姓名： | 邢士波 肖葵 李丽 李晓刚 刘安强 王恩清 |
| 作者单位： | 1. 北京科技大学新材料技术研究院,北京100083 河北工程大学机电学院,邯郸056038 2. 北京科技大学新材料技术研究院,北京,100083 3. 河北工程大学机电学院,邯郸,056038 4. 新兴铸管集团有限公司技术中心,邯郸,056300 |
| 基金项目： | 国家科技基础条件平台资助项目(2005DKA10400);国家自然科学基金资助项目(50871021) |
| 摘 要： | 采用电弧喷涂法制备Zn-Al-Mg-La-Ce涂层,通过盐雾试验对涂层进行腐蚀,利用能谱分析、X射线衍射分析、扫描电镜观察、极化曲线以及电化学阻抗谱等手段对腐蚀前后的Zn-Al-Mg-La-Ce涂层进行了研究.结果表明:实验制备的Zn-Al-Mg-La-Ce涂层具有较好的自封闭效果,组织致密,在腐蚀过程中表面的微观孔隙能够被自身的腐蚀产物有效堵塞,涂层表面形成的致密腐蚀产物层能够阻止腐蚀的进一步发生.因此,Zn-Al-Mg-La-Ce涂层具有优异的耐蚀性能. |
| 关 键 词： | 锌铝合金 稀土 涂层 耐腐蚀性 喷涂 |
Corrosion resistance of Zn-Al-Mg-La-Ce coatings by electric arc spraying |
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| XING Shi-bo,XIAO Kui,LI Li,LI Xiao-gang,LIU An-qiang,WANG En-qing. Corrosion resistance of Zn-Al-Mg-La-Ce coatings by electric arc spraying[J]. Journal of University of Science and Technology Beijing, 2012, 34(10): 1167-1172 | |
| Authors: | XING Shi-bo XIAO Kui LI Li LI Xiao-gang LIU An-qiang WANG En-qing |
| Affiliation: | 1) Institute of Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China 2) College of Mechanical and Electrical Engineering,Hebei University of Engineering;Handan 056038,China 3) Technology Center,Xinxing Ductile Iron Pipe Group Company,Handan 056300,China |
| Abstract: | Zn-Al-Mg-La-Ce coatings were prepared by electric arc spraying,and their corrosion behavior was studied with salt spray test.The characteristics of the coatings before and after corrosion were investigated by energy dispersive spectrometry(EDS),X-ray diffraction(XRD),scanning electron microscopy(SEM),polarization curves,and electrochemical impedance spectroscopy.It is shown that the coatings have outstanding self-sealing effectiveness,and their structures are compact.During corrosion,microscopic pores on the surfaces of the coatings can be jammed with their own corrosion products,thus forming a dense corrosion product layer to prevent from further corrosion.Consequently,the corrosion resistance of Zn-Al-Mg-La-Ce coatings is superior to that of normal coatings. |
| Keywords: | zinc aluminum alloys rare earths coatings corrosion resistance spraying |
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