Influence of adipic acid on anodic film formation and corrosion resistance of 2024 aluminum alloy

作     者：李英东 张优 李松梅 赵丕植 Ying-dong LI;You ZHANG;Song-mei LI;Pi-zhi ZHAO

作者机构：北京航空航天大学材料科学与工程学院北京100191 中铝科学技术研究院有限公司北京102209 

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

年 卷 期：2016年第26卷第2期

页      面：492-500页

核心收录：

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

基　　金：Project(51271012)supported by the National Natural Science Foundation of China 

主　　题：aluminum alloy anodic oxidation adipic acid adsorption corrosion 

摘      要：The influence of adipic acid on the formation and corrosion resistance of anodic oxide film fabricated on 2024 aluminum alloy was investigated. The morphology was investigated by scanning electron microscopy （SEM） and transmission electron microscopy （TEM）, respectively. The corrosion resistance was evaluated by electrochemical impedance spectroscopy （EIS）. The results showed that the adipic acid was absorbed at the electrolyte/anodic layer interface during anodizing. The corrosion rate of anodic film decreased and the film thickness increased. The film was uniform and compact especially at the film/substrate interface. After sealing procedure, anodic film formed with the addition of adipic acid exhibited improved dielectric property and corrosion resistance in aggressive environment.