Structure and Performances of 7075 Aluminum Alloy Surface Subject to Hot-Dip Zinc

摘要：

　　The hot-dip galvanized coating was produced on the 7075 aluminum alloy plate by immersion in a pure zinc bath at different temperature from 440℃ to 470℃ for different modification time (between 1 min and 10 min).The hot-dip galvanized of the treated and un-treated samples were investigated by using scanning electron microscopy (SEM) with EDX analysis, X-ray diffraction (XRD), hardness measurements and potentiodynamic polarization curves.There were three layers fabricated on the 7075 substrate surface, specifically, zinc-rich layer, two-phase mixed layer Al-Zn and interdiffusion layer.Moreover, the 7075 aluminum alloy with the hot-dip galvanized coating exhibit higher hardness and better anti-corrosion properties in comparison with the 7075 substrate.

关键词： 7075 Al alloy Hot-dip zinc Hardness Corrosion resistance

作者: Na Xu Xiao-yang Qiao Xu Yang Yong-cun Li Hai-zhi Li Wei-ping Tong

作者单位: Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110004, China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 224-232

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）