| SiC_p/2024Al复合材料阳极氧化膜耐蚀性的电化学阻抗研究 |
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| 引用本文： | 贺春林,李凤琴,刘常升,史志明,赵明久,毕敬,才庆魁.SiC_p/2024Al复合材料阳极氧化膜耐蚀性的电化学阻抗研究[J].金属学报,2001(8). |
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| 作者姓名： | 贺春林 李凤琴 刘常升 史志明 赵明久 毕敬 才庆魁 |
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| 作者单位： | 东北大学材料与冶金学院，东北大学材料与冶金学院，东北大学材料与冶金学院，中国科学院金属研究所，中国科学院金属研究所，中国科学院金属研究所，东北大学材料与冶金学院 沈阳110004，沈阳110004，沈阳110004，沈阳110016，中国科学院金属研究所金属腐蚀与防护国家重点实验室 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目 97014517，金属腐蚀与防护国家重点实验室资助项目，国家自然科学基金资助项目59 |
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| 摘 要： | 采用电化学阻抗技术研究了碳化硅颗粒增强 ２０２４铝基复合材料（ＳｉＣｐ／２０２４Ａｌ）硫酸阳极氧化膜在 ３．５％ＮａＣｌ水 溶液中的耐蚀性；作为比较，对 ２０２４ Ａｌ的阳极氧化膜耐蚀性也进行了研究 结果表明，ＳｉＣｐ／２０２４Ａｌ复合材料的阳极氧化膜 具有良好的耐 ＮａＣｌ溶液腐蚀的能力，而且重铬酸盐封闭比热水封闭的阳极氧化膜耐蚀性更好．由于氧化膜中出ＳｉＣ颗粒的存在破 坏了氧化膜的完整性和均匀性，故复合材料阳极氧化膜的耐蚀性不如 ２０２４ Ａｌ合金．
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| 关 键 词： | SiCp/2024Al复合材料 阳极氧化 电化学阻抗谱 耐蚀性 |
STUDY OF CORROSION RESISTANCE OF ANODIZED FILM ON THE SiC_p/2024 Al METAL MATRIX COMPOSITE WITH ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY |
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| HE Chunlin,LI Fengqin,LIU Changsheng,SHI Zhiming,ZHAO Mingjiu,BI Jing,CAI Qingkui School of Materials and Metallurgy,Northeastern University Shenyang.STUDY OF CORROSION RESISTANCE OF ANODIZED FILM ON THE SiC_p/2024 Al METAL MATRIX COMPOSITE WITH ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY[J].Acta Metallurgica Sinica,2001(8). |
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| Authors: | HE Chunlin LI Fengqin LIU Changsheng SHI Zhiming ZHAO Mingjiu BI Jing CAI Qingkui School of Materials and Metallurgy Northeastern University Shenyang |
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| Affiliation: | HE Chunlin,LI Fengqin,LIU Changsheng,SHI Zhiming,ZHAO Mingjiu,BI Jing,CAI Qingkui School of Materials and Metallurgy,Northeastern University Shenyang 110004, Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016, State Key Labor |
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| Abstract: | The corrosion resistance of sulfuric acid anodized film on the SiC particle reinforced 2024 aluminum metal matrix composite (SiCp/2024Al MMC) in 3.5% NaCl aqueous solution was investigated using electrochemical impedance spectroscopy and compared with that of sulfuric acid anodized 2024 Al. The results show that the anodized film on SiCp/2024Al provides satisfactory corrosion resistance in 3.5% NaCl solution, and the corrosion resistance of the film sealing in dichromate solution is better than in hot water. The anodized film on SiCp/2024Al is not as effective as on 2024Al because the homogenity of the anodized layer is destrpued by SiC particulates. |
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| Keywords: | SiCp/2024Al composite anodizing electrochemical impedance spectroscopy cor- rosion resistance |
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