[1]黄艳萍,张友法,余新泉,等.镁合金表面超疏水性的构建及耐腐蚀性分析[J].东南大学学报(自然科学版),2012,42(5):915-920.[doi:10.3969/j.issn.1001-0505.2012.05.022]
 Huang Yanping,Zhang Youfa,Yu Xinquan,et al.Fabrication of superhydrophobic surface on magnesium alloy and corrosion resistance analysis[J].Journal of Southeast University (Natural Science Edition),2012,42(5):915-920.[doi:10.3969/j.issn.1001-0505.2012.05.022]
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镁合金表面超疏水性的构建及耐腐蚀性分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
42
期数:
2012年第5期
页码:
915-920
栏目:
材料科学与工程
出版日期:
2012-09-20

文章信息/Info

Title:
Fabrication of superhydrophobic surface on magnesium alloy and corrosion resistance analysis
作者:
黄艳萍 张友法 余新泉 陈锋
东南大学材料科学与工程学院,南京 211189; 东南大学江苏省先进金属材料高技术研究重点实验室,南京 211189
Author(s):
Huang Yanping Zhang Youfa Yu Xinquan Chen Feng
School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
关键词:
超疏水 镁合金 耐腐蚀性
Keywords:
superhydrophobicity magnesium alloy corrosion resistance
分类号:
TG17
DOI:
10.3969/j.issn.1001-0505.2012.05.022
摘要:
为了改善传统镁合金表面较差的耐腐蚀性能,对镁合金表面依次进行硫酸刻蚀处理和电沉积处理,并采用扫描电子显微镜、接触角测量仪和电化学测试系统研究其表面形貌、 疏水性和耐腐蚀性的变化.扫描电子显微镜的结果表明,硫酸刻蚀-电沉积法在镁合金表面构建了一种微米-纳米多级复合结构,降低了表面能.接触角测量结果表明,制备的镁合金表面水滴静态接触角可达160°,显示出优异的超疏水性和低黏附性.电化学测试结果表明,与未处理的镁合金表面相比,硫酸刻蚀-电沉积法制备的镁合金表面的腐蚀电位提高了95 mV,对应的腐蚀电流密度和腐蚀速率均降低了1~2个数量级,表面腐蚀程度明显降低,说明这种镁合金表面具有良好的耐腐蚀性能.
Abstract:
In order to improve the corrosion resistance performance of traditional magnesium alloy, the surface of magnesium alloy was treated successively by sulfuric acid etching and electrodeposition. The structure, wettability and corrosion resistance performance of the treated surface were characterized by scanning electronic microscopy(SEM), contact angle measurement system and electronic chemical testing system, respectively. The SEM results show that a kind of micro-and nano-scale structure is successfully fabricated by sulfuric acid etching and electrodeposition, and the surface energy is greatly reduced. The contact angle measurement results show that the treated surface displays a high water contact angle of 160°, showing the surface is superhydrophobic and low-adhesive. The electronic chemical test results demonstrate that compared with the untreated surface, the corrosion potential of the magnesium alloy surface treated by sulfuric acid etching and electrodeposition positively increases by 95 mV. Besides, the corrosion current density and the corrosion speed of the treated surface decrease 1 to 2 orders, and the corrosion degree is greatly lowered, indicating that the treated magnesium alloy surface has good corrosion resistance property.

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备注/Memo

备注/Memo:
作者简介: 黄艳萍(1987— ),女,硕士生; 张友法(联系人),男,博士,副教授,yfzhang@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51101035,51106023)、高等学校博士学科点专项科研基金资助项目(20110092120066)、江苏省自然科学基金资助项目(BK2011255).
引文格式: 黄艳萍,张友法,余新泉,等.镁合金表面超疏水性的构建及耐腐蚀性分析[J].东南大学学报:自然科学版,2012,42(5):915-920. [doi:10.3969/j.issn.1001-0505.2012.05.022]
更新日期/Last Update: 2012-09-20