东南大学学报（自然科学版）2012，Vol.42Issue(5)：915-920,6.DOI:10.3969/j.issn.1001-0505.2012.05.022
镁合金表面超疏水性的构建及耐腐蚀性分析
Fabrication of superhydrophobic surface on magnesium alloy and corrosion resistance analysis
摘要
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 electrodeposi-tion. 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 electro-deposition 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.关键词
超疏水/镁合金/耐腐蚀性Key words
superhydrophobicity/ magnesium alloy/ corrosion resistance分类
矿业与冶金引用本文复制引用
黄艳萍,张友法,余新泉,陈锋..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):915-920,6.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). （51101035,51106023）
