| 引用本文： |
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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. [点击复制]
- CHEN Hong-mei,FAN Chang-you,ZHAO Mao-mi,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. [点击复制]
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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。 |
| 关键词: 合金 铝-铁-铈 电化学 腐蚀行为 |
| DOI： |
| 投稿时间：2010-10-08修订日期：2011-03-25 |
| 基金项目:国家自然科学基金项目(50761002);广西青年基金项目(0832007);广西研究生教育创新计划项目(105930903079)资助 |
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| Effects of Fe and Ce on Corrosion Behaviors of Aluminum in 3.5% NaCl Solution |
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CHEN Hong-mei1, FAN Chang-you1, ZHAO Mao-mi1, ZHONG Xia-ping2
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| (1.College of Physics Science and Technology, Guangxi University, Nanning, Guangxi, 530004, China;2.Guangxi Academy of Sciences, Nanning, Guangxi, 530007, China) |
| 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. |
| Key words: alloys Al-Fe-Ce electrochemistry corrosion behavior |
