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Corrosion resistance properties of AZ31 magnesium alloy after Ti ion implantation

查看全文 作　　者：CHEN [1,2]Fei;ZHOU [1]Hai;CAI [1]Suo;LV [2]Fanxiu;LI [2]Chengming 高影响力作者 机构地区：[1]College of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;[2]Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China高影响力机构 出　　处：《Rare Metals》索引2007年第26卷第2期,共5页高影响力期刊 基　　金：This work was financially supported by the Scientific Research Common Program of Beijing Municipal Commission of Education (No. KM200510017005). 摘　　要：Magnesium alloys have a wide range of applications in industry; however, their corrosion resistance, wear resistance, and hardness are rather poor, which limit their applications. Ti ion was implanted into the AZ31 magnesium alloy surface by metal vapor vacuum arc (MEVVA) implanter. This metal arc ion source has a broad beam and high current capabilities. The implantation energy was fixed at 45 keV and the dose was at 9 × 1017 cm?2. Through ion implantation, Ti ion implantation layer with approximately 900 nm in thickness was directly formed on the surface of AZ31 magnesium alloy, by which its surface property greatly improved. The chemical states of some typical elements of the ion implantation layer were analyzed by means of X-ray photoelectron spectroscopy (XPS), while the cross sectional morphology of the ion im-plantation layer and the phase structure were observed by means of scanning electron microscopy (SEM) and X-ray diffraction (XRD). The property of corrosion resistance of the Ti ion implanted layer was studied by the CS300P electrochemistry corrosion workstation in 3.5% NaCl solution. The results showed that the property of corrosion resistance was enhanced remarkably, while the corrosion velocity was obviously slowed down. 关 键 词：AZ31镁合金 钛离子注入 耐腐蚀性能 成分分布
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