| Ga和Bi对Al-Zn-Sn牺牲阳极电化学性能的影响(英文) |
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| 引用本文： | 贺俊光,文九巴,李旭东,王国伟,徐春花.Ga和Bi对Al-Zn-Sn牺牲阳极电化学性能的影响(英文)[J].中国有色金属学会会刊,2011(7):1580-1586. |
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| 作者姓名： | 贺俊光 文九巴 李旭东 王国伟 徐春花 |
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| 作者单位： | 兰州理工大学材料科学与工程学院;河南科技大学材料科学与工程学院; |
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| 基金项目： | Project(094200510019) supported by Technology Creative Programmer of Henan for Excellent Talents,China; Project(092300410132) supported by the Natural Science Foundation of Henan Province,China |
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| 摘 要： | 通过光学显微镜(OM)、扫描电镜(SEM)、能谱分析(EDAX)和电化学性能测试等方法,研究了Ga和Bi对Al-7Zn-0.1Sn(质量分数,%)牺牲阳极微观组织和电化学性能的影响。Al-Zn-Sn合金加入Ga和Bi元素后,合金组织由粗大枝晶转变为等轴晶,仅剩下少量枝晶。Al-7Zn-0.1Sn-0.015Ga-0.1Bi合金具有高的电流效率(97%)和均匀的腐蚀形貌,表明添加适量的Ga和Bi元素能有效改善Al-Zn-Sn合金的组织和电化学性能。
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| 关 键 词： | 铝 牺牲阳极 电化学性能 电化学阻抗谱 偏析 |
Influence of Ga and Bi on electrochemical performance of Al-Zn-Sn sacrificial anodes |
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| HE Jun-guang,WEN Jiu-ba,LI Xu-dong,WANG Guo-wei,XU Chun-hua .School of Materials Science , Engineering,Lanzhou University of Technology,Lanzhou ,China,.School of Materials Science , Engineering,Henan University of Science , Technology,Luoyang.Influence of Ga and Bi on electrochemical performance of Al-Zn-Sn sacrificial anodes[J].Transactions of Nonferrous Metals Society of China,2011(7):1580-1586. |
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| Authors: | HE Jun-guang WEN Jiu-ba LI Xu-dong WANG Guo-wei XU Chun-hua School of Materials Science Engineering Lanzhou University of Technology Lanzhou China School of Materials Science Engineering Henan University of Science Technology Luoyang |
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| Affiliation: | HE Jun-guang1,2,WEN Jiu-ba2,LI Xu-dong1,WANG Guo-wei2,XU Chun-hua2 1.School of Materials Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,China,2.School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 471003 |
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| Abstract: | The influence of Ga and Bi on the microstructure and electrochemical performance of Al-7Zn-0.1Sn (mass fraction,%) sacrificial anodes was investigated by means of optical microscopy (OM),scanning electron microscopy/energy dispersive X-ray analysis (SEM/EDAX) and electrochemical measurements.It was found that the coarse dendrites structure transformed into the equiaxed grains as well as a small amount of dendrite grains after adding Ga and Bi into Al-Zn-Sn alloys.A high current efficiency of 97% and even co... |
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| Keywords: | aluminium sacrificial anode electrochemical performance electrochemical impedance spectroscopy segregation |
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