| 铁和铈对铝在3.5%NaCl溶液中腐蚀行为的影响 |
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| 引用本文： | 陈红梅,范常有,赵茂密,钟夏平.铁和铈对铝在3.5%NaCl溶液中腐蚀行为的影响[J].广西科学,2011,18(2):153-157. |
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| 作者姓名： | 陈红梅 范常有 赵茂密 钟夏平 |
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| 作者单位： | 1. 广西大学物理科学与工程技术学院,广西南宁,530004
2. 广西科学院,广西南宁,530007 |
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| 基金项目： | 国家自然科学基金项月，广西青年基金，广西研究生教育创新计划项目 |
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| 摘 要： | 采用高频熔炼方法制备Al-Fe-Ce合金,通过X射线衍射仪、金相显微镜、电化学工作站等对制备的合金结构、动电位线性扫描极化曲线、浸泡与电化学腐蚀前后表面形貌的变化进行研究,并分析Al-Fe-Ce合金在浓度为3.5%NaCl溶液中耐腐蚀性能。结果表明：在3.5%NaCl溶液中腐蚀,Cl-致使铝合金容易发生点蚀;稀土Ce的加入能够改善合金微观结构,细化晶粒,减弱Cl-离子对点蚀的影响;合金中Ce的存在能够降低Fe对合金腐蚀性能的损害作用。
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| 关 键 词： | 合金 铝-铁-铈 电化学 腐蚀行为 |
| 收稿时间： | 2010/10/8 0:00:00 |
| 修稿时间： | 2011/3/25 0:00:00 |
Effects of Fe and Ce on Corrosion Behaviors of Aluminum in 3.5% NaCl Solution |
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| CHEN Hong-mei,FAN Chang-you,ZHAO Mao-mi and ZHONG Xia-ping.Effects of Fe and Ce on Corrosion Behaviors of Aluminum in 3.5% NaCl Solution[J].Guangxi Sciences,2011,18(2):153-157. |
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| Authors: | CHEN Hong-mei FAN Chang-you ZHAO Mao-mi and ZHONG Xia-ping |
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| Institution: | 1.College of Physics Science and Technology,Guangxi University,Nanning,Guangxi,530004,China;2.Guangxi Academy of Sciences,Nanning,Guangxi,530007,China) |
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| Abstract: | Al-Fe-Ce alloys were prepared by high-frequency melting.The structure of alloys,potentiodynamic linear polarization cure,and the changes of the surface morphology after immersion and electrochemical corrosion were investigated by X-ray diffraction,metallurgical microscope,and electrochemical analysis.The corrosion characteristic of Al-Fe-Ce alloys in 3.5% NaCl solution was systematically analyzed.The results indicate that the addition of rare earth Ce in aluminum can refine the microstructure of alloy,and reduce the harmful effects of Cl-ions on pitting corrosion resistance.Furthermore,the addition of Ce in aluminum alloys can eliminate the damage of Fe to the corrosion resistance of alloys. |
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| Keywords: | alloys Al-Fe-Ce electrochemistry corrosion behavior |
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