Corrosion Behavior of Anodic Films Formed on Aluminium 7A04 Alloy in Boric/Sulphuric Mixed Acid and in Chromic Acid

被引：0
|
作者：
Deng, Shan [1 ]
Xu, Lei [1 ]
Li, Qiuze [2 ]
Huang, Xingmin [1 ]
Liang, Shulin [3 ]
Dai, Guangze [1 ]
机构：
[1] Southwest Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Sch Mat Sci & Engn, Chengdu 610031, Peoples R China
[2] Jiao Tong Univ, Minist Educ, Engn Res Ctr Structure Reliabity & Operat Measure, Beijing 100044, Peoples R China
[3] Changchun Railway Vehicles Co Ltd, R&D Ctr Bogie Dept, Changchun 130062, Peoples R China
来源：
NEW MATERIALS, APPLICATIONS AND PROCESSES, PTS 1-3 | 2012年 / 399-401卷
关键词：
Anodic oxide film; Corrosion resistance; Electrochemical impedance spectroscopy;
D O I：
10.4028/www.scientific.net/AMR.399-401.95
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion behavior of the anodic oxide film on aluminium 7A04 alloy is investigated in current paper, where the different anodic oxide films are prepared. Morphology observation on different anodic films is carried out by using laser confocal microscopy (LCM) and copper sulfate test. Meanwhile, the electrochemical properties are evaluated through using electrochemical impedance spectroscopy (EIS). The LCM observation shows that the anodic oxide film formed in boric/sulphuric mixed acid is uniform with porous appearance, while the anodic oxide film formed in chromic aid is nonporous one but defective. The copper sulfate test results show that the corrosion regions almost developed from micropores in strong corrosive media. The evaluation of EIS in NaCl solution demonstrates that the corrosion resistance of specimen with anodic oxide film is much better than that without film. Furthermore, the corrosion resistance of anodic film formed in boric/sulphuric mixed acid is better than that formed in chromic acid.
引用
收藏
页码：95 / +
页数：2
相关论文
共 50 条
  • [21] DLC Films in Boric Acid Media for Corrosion and Friction Behavior Studies
    Yu, Bo
    Wu, Youzhi
    Jiang, Chengyan
    Wang, Peng
    Zhao, Xiaoyu
    Zhang, Beibei
    Yan, Yunfeng
    Yuan, Hangkong
    Chai, Liqiang
    Mocaxue Xuebao/Tribology, 2024, 44 (11): : 1579 - 1591
  • [22] Growth of anodic oxide films on AC2A alloy in sulphuric acid solution
    Moon, S.
    Nam, Y.
    Yang, C.
    Jeong, Y.
    CORROSION SCIENCE, 2011, 53 (04) : 1547 - 1553
  • [23] On the theory of passivity occurences XXXIII On the connection between the anodic behaviour and corrosion with potential oscillations of iron in chromic acid-sulphuric acid solutions
    Muller, WJ
    Low, E
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-ABTEILUNG A-CHEMISCHE THERMODYNAMIK KINETIK ELEKTROCHEMIE EIGENSCHAFTSLEHRE, 1941, 189 (1/2): : 70 - 87
  • [24] Influence of ultraviolet illumination on the corrosion behavior of 7A04 aluminum alloy in salt solutions with different pH values
    Wang, Bin
    Wang, Xiaoxue
    Zhou, Jie
    Liu, Chunmiao
    Liu, Jie
    Gao, Guanhui
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 32 : 3921 - 3936
  • [25] Effect of anodizing process on corrosion and wear resistance of 6061 alloy anodic oxide films formed in oxalic acid
    Liu, Li
    Zhang, Kun
    Xiong, Hui-Hui
    Ning, Shu-Hong
    Hu, Qi
    Dong, Li-Xin
    Chen, Hui
    Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment, 2015, 36 (11): : 225 - 232
  • [26] Dissolution behavior of anodic oxide films formed in sulfanic acid on aluminum
    Vrublevsky, Igor
    Parkoun, Vladimir
    Sokol, Vitaly
    Schreckenbach, Joachim
    Goedel, Werner A.
    MICROCHIMICA ACTA, 2006, 156 (1-2) : 173 - 179
  • [27] Dissolution behavior of anodic oxide films formed in sulfanic acid on aluminum
    Igor Vrublevsky
    Vladimir Parkoun
    Vitaly Sokol
    Joachim Schreckenbach
    Werner A. Goedel
    Microchimica Acta, 2006, 156 : 173 - 179
  • [28] Influence of and differences between Chromic and Sulphuric acid anodising on the fatigue properties of 7050 T7451 aluminium alloy
    Wragg, D.A.
    Davies, D.P.
    Jenkins, S.L.
    International Journal of Fatigue, 2022, 163
  • [29] Influence of and differences between Chromic and Sulphuric acid anodising on the fatigue properties of 7050 T7451 aluminium alloy
    Wragg, D. A.
    Davies, D. P.
    Jenkins, S. L.
    INTERNATIONAL JOURNAL OF FATIGUE, 2022, 163
  • [30] Effect of static elastic stress on the corrosion behavior of 7A04 aluminum alloy exposed to real marine atmospheric environment
    Zhou, Jie
    Wang, Bin
    Liu, Chunmiao
    Liu, Jie
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 26 : 8197 - 8212
12345