|
|||||
|
|
| 表面处理对铝基复合材料耐蚀性的影响 | |
| 引用本文： | 冯祖德,陈菲,林昌健,杜荣归. 表面处理对铝基复合材料耐蚀性的影响[J]. 厦门大学学报(自然科学版), 2000, 39(1): 72-78 |
| 作者姓名： | 冯祖德 陈菲 林昌健 杜荣归 |
| 作者单位： | 1. 厦门大学材料科学系,福建,厦门,361005 2. 厦门大学材料科学系,福建,厦门,361005;厦门大学固体表面物理化学国家重点实验室,福建,厦门,361005 3. 厦门大学物理化学研究所,福建,厦门,361005 |
| 基金项目： | 国家自然科学基金!（59871043），教育部留学回国人员基金 |
| 摘 要： | 研究了氯化铈表面化学处理对于ＳｉＣｐ／２０２４Ａｌ铝基复合材料在含氯离子介质听 蚀性的影响，研究结果表明，氯化铈表面化学处理使记叙昨合材料的点蚀电位发生显著正常，处理后点蚀电位与自腐蚀电位之差也显著增大，而随着铝茇复合材料中ＳｉＣｐ的体积分数的增加，表面处理的效果显著下降，交流阻抗谱和电流－时间谱测试表明，经过氯化铈化学处理的铝基复合材料相比未处理前在０．１ｍｏＬＮａＣｌ溶液中浸泡不易出现局部破坏 |
| 关 键 词： | 铝基复合材料 表面处理 耐蚀性 耐点蚀能力 |
| 文章编号： | 0438-0479(2000)-0072-07 |
| 修稿时间： | 1999-06-30 |
The Effect of Surface Modification on Pitting Behavior of Aluminum Matrix Composites |
|
| FENG Zu-de,CHEN Fei,LIN Chang-jian,DU Rong-gui. The Effect of Surface Modification on Pitting Behavior of Aluminum Matrix Composites[J]. Journal of Xiamen University(Natural Science), 2000, 39(1): 72-78 | |
| Authors: | FENG Zu-de CHEN Fei LIN Chang-jian DU Rong-gui |
| Abstract: | The effect of chemical passivation in CeCl 3 solution on the pitting behavior of as cast SiCp/2024 Al metal metrix composites was investigated. Potentiodynamic polarization techniques, a c impedance techniques, and potentiostatic current time plots technique were used to characterize the properties of protective surface layers. Statistically significant improved results were noted for the chemical passivation. In addition, increase of period of immersion of the MMCs in CeCl 3 solution from 3 days to 14 days led to a significant increase of the pitting potential. However, the effectiveness of corrosion protection methods decreased with increasing reinforcement concentration. Electrochemical impedance spectroscopy and potentiostatic current time plots revealed that the quality and stability of passive oxide layers formed on the composites were improved after immersion in CeCl 3 solution. |
| Keywords: | Al based metal metrix composites pitting corrosion chemical passivation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |