| Er对Al-Zn-In合金组织和电化学性能的影响 |
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| 引用本文： | 李航,魏兵,许征兵,曾建民,李恒,陈蓉,陆艳艳.Er对Al-Zn-In合金组织和电化学性能的影响[J].稀有金属材料与工程,2016,45(7):1848-1854. |
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| 作者姓名： | 李航 魏兵 许征兵 曾建民 李恒 陈蓉 陆艳艳 |
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| 作者单位： | 广西大学有色金属材料及其加工新技术教育部重点实验室,广西大学有色金属材料及其加工新技术教育部重点实验室,广西大学有色金属材料及其加工新技术教育部重点实验室,广西大学有色金属材料及其加工新技术教育部重点实验室,广西大学有色金属材料及其加工新技术教育部重点实验室,广西大学有色金属材料及其加工新技术教育部重点实验室,广西大学有色金属材料及其加工新技术教育部重点实验室 |
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| 基金项目： | 国家自然科学基金资助(项目号51401057)；广西自然科学基金资助(2013GXNSFBA019252)；广西教育厅科研项目资助(No. 2013YB011)；新型铝合金材料及先进加工理论与技术系统性课题资助(桂科能13-051-02,13-A-02-03)；“铝合金材料先进加工技术”八桂学者专项经费资助 |
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| 摘 要： | 采用SEM、EDS和XRD等方法,研究了不同Er含量对Al-Zn-In阳极合金组织的影响;在3.5%(质量分数)Na Cl溶液中测试了不同Er含量的Al-5Zn-0.03In-Er合金的极化曲线和电化学阻抗(EIS)。结果表明:随着Er含量的增加,铝合金阳极枝晶得到细化,枝晶间析出相增多,合金腐蚀电位正移,EIS谱中阻抗弧半径增大,腐蚀速度减缓。4种合金中,Al-5Zn-0.03In-1Er合金枝晶得到一定程度细化、析出相数量适中,点蚀坑较为独立,呈现均匀腐蚀的特征,可作为阳极合金材料。
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| 关 键 词： | Al-Zn-In牺牲阳极 Er 微观组织 极化曲线 电化学阻抗 |
| 收稿时间： | 2015/3/31 0:00:00 |
| 修稿时间： | 2015/12/26 0:00:00 |
Effect of Er on microstructure and electrochemical performance of Al-Zn-In anode |
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| Li Hang,Weibin,Xu Zhengbing,Zeng Jianmin,Li Heng,Chen Rong and Lu Yanyan.Effect of Er on microstructure and electrochemical performance of Al-Zn-In anode[J].Rare Metal Materials and Engineering,2016,45(7):1848-1854. |
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| Authors: | Li Hang Weibin Xu Zhengbing Zeng Jianmin Li Heng Chen Rong and Lu Yanyan |
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| Affiliation: | Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China |
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| Abstract: | The effect of Er content on microstructure of Al-Zn-In alloy anodes were studied by using scanning electron microscopy(SEM), energy spectrum analysis and X-ray diffraction analysis. The polarization curves and EIS of Al-Zn-In alloy with different Er content were tested in the 3.5wt% NaCl solution. The results show that with the increase of Er content, the dendrite was refined, the amount of inter-dendritic precipitates increased, the corrosion potential became more positive, the radius of electrochemical impedance spectroscopy enlarged and corrosion rate also decreased. Al-5Zn-0.03In-1Er alloy has refined dendrites and proper amount of precipitates, with the corrision morphologies of independent pitting, corrosion in uniformity, which is an ideal choice for using as sacrifical alloy. |
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| Keywords: | Al-Zn-In sacrificial alloy Er microstructure polarization curve EIS |
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