Corrosion behavior of pure aluminum in FeCl_3 solution

作     者：屈钧娥 郭兴蓬 王海人 黄金营 

作者机构：School of Chemistry and Material ScienceHubei University Department of ChemistryHuazhong University of Science and Technology Postdoctoral Station of Technical Institute of Physics and ChemistryChinese Academy of Sciences 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2006年第7卷第6期

页      面：1460-1466页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：pure aluminum pitting corrosion FeCl3 solution AFM uniform attack 

摘      要：The corrosion behavior of pure aluminum in FeCl3 solution was investigated mainly by in-situ AFM(Atomic Force Microscopy).The results of combined researches of AFM,SEM(Scanning Electron Microscopy)and EDAX(Energy Dispersive Analysis of X-ray)show that in addition to uniform attack,pitting corrosion takes place also on pure aluminum surface in FeCl3 solution at open-circuit potential,and impurity elements Fe and Cu are found enriched in corrosion ***-situ AFM was also used to examine the initiation and development of pitting corrosion of pure aluminum induced by potentiodynamic sweep,and the repassivation of an active pit is *** tip scratching technique was used to produce a physical defect on metal surface,which is traced by in-situ AFM and it is found that the defect is likely to be preferentially attacked and evolve to pitting corrosion.