| 两种镁合金阳极在人造海水中的电化学性能 |
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| 引用本文： | 李连强,桑林,刘元刚,丁飞,徐强.两种镁合金阳极在人造海水中的电化学性能[J].电源技术,2017,41(5). |
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| 作者姓名： | 李连强 桑林 刘元刚 丁飞 徐强 |
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| 作者单位： | 1. 中国电子科技集团公司第十八研究所化学与物理电源重点实验室,天津300384;天津大学化工学院,天津300072;2. 中国电子科技集团公司第十八研究所化学与物理电源重点实验室,天津,300384;3. 天津市科技工作者创新创业服务中心,天津,300041;4. 天津大学化工学院,天津,300072 |
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| 摘 要： | 采用析氢实验,动电位极化,交流阻抗法和恒流放电等方法研究了两种海水电池用镁合金阳极(AZ31镁合金和AZ61镁合金)在人造海水中的电化学性能(自腐蚀和放电行为)。析氢实验结果表明,AZ61合金的析气量明显大于AZ31合金。动电位扫描和交流阻抗的实验结果表明,AZ31合金在人造海水中比AZ61合金更耐蚀。恒流放电的实验结果表明,AZ31合金在低电流密度下放电时的电流效率高于AZ61合金。但在大电流密度下放电时,AZ61合金的放电效率大于AZ31合金。
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| 关 键 词： | 镁合金阳极 人造海水 放电行为 极化 腐蚀 |
Study on electrochemical performance of two magnesium alloy anodes used for seawater battery |
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| LI Lian-qiang,SANG Lin,LIU Yuan-gang,DING Fei,XU Qiang.Study on electrochemical performance of two magnesium alloy anodes used for seawater battery[J].Chinese Journal of Power Sources,2017,41(5). |
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| Authors: | LI Lian-qiang SANG Lin LIU Yuan-gang DING Fei XU Qiang |
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| Abstract: | The electrochemical performances (self-corrosion and discharge) of two kinds of magnesium alloy AZ31 and AZ61 in artificial seawater were investigated by means of hydrogen evolution,potentiodynamic polarization,AC impedance analysis and constant current discharge method.The result of hydrogen evolution shows that the gassing volume of AZ61 is higher than that of AZ31.The results of potentiodynamic polarization and AC impedance analysis show that the corrosion rate of AZ31 is lower than that of AZ61 in artificial seawater.The result of constant current discharge represents that the current efficiency of AZ31 is larger than that of AZ61 at low current density but lower than that of AZ61 at high current density. |
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| Keywords: | magnesium alloy anode artificial seawater discharge behavior polarization corrosion |
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