| 杂质Fe对A1-Zn-In牺牲阳极性能的影响 |
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| 引用本文： | 刘辉,孙明先,马力,闫永贵. 杂质Fe对A1-Zn-In牺牲阳极性能的影响[J]. 腐蚀科学与防护技术, 2011, 0(6) |
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| 作者姓名： | 刘辉 孙明先 马力 闫永贵 |
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| 作者单位： | 中船重工七二五研究所海洋腐蚀与防护重点实验室; |
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| 摘 要： | 炼制Fe杂质含量不同的6种Al-Zn-In阳极,采用恒电流方去评价了其电化学性能,并通过扫描电镜观察其溶解的微观形貌,探讨了Fe杂质含量对阳极电化学性能的影响规律与机制.结果表明,随着Fe杂质含量的升高,Al-Zn-In阳极的电流效率呈先增加后降低趋势,原因足少量的Fe可增加阳极的活化点,而过量的Fe则作为阴极相引发电偶腐蚀使得阳极呈局部腐蚀溶解.
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| 关 键 词： | 铝牺牲阳极 杂质元素 局部腐蚀 铁 |
Effects of Iron on Electrochemical Performance of Al-Zn-In Sacrificial Anodes |
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| LIU Hui,SUN Ming-xian,MA Li,YAN Yong-gui Science , Technology On Marine Corrosion , Protection.Laboratory,Luoyang Ship Material Research Institute.Qingdao. Effects of Iron on Electrochemical Performance of Al-Zn-In Sacrificial Anodes[J]. Corrosion Science and Protection Technology, 2011, 0(6) |
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| Authors: | LIU Hui SUN Ming-xian MA Li YAN Yong-gui Science Technology On Marine Corrosion Protection.Laboratory Luoyang Ship Material Research Institute.Qingdao |
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| Affiliation: | LIU Hui,SUN Ming-xian,MA Li,YAN Yong-gui Science and Technology On Marine Corrosion and Protection.Laboratory,Luoyang Ship Material Research Institute.Qingdao 266101 |
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| Abstract: | Six kinds of Al-Zn-In anodes with different contents of Fe were cast.Their electro- chemical performance was examined by galvanostatic method and SEM observation.The results showed that the current efficiency of the anodes increased firstly and then decreased with the in- creaing of Fe content.Local corrosion appeared for the alloys with the addition of excessive Fe, which caused galvanic corrosion. |
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| Keywords: | aluminium sacrificial anodes impurity elements local corrosion Fe |
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