Exfoliation corrosion behavior of 7050-T6 aluminum alloy treated with various quench transfer time

被引：43
|
作者：
Song, Feng-xuan [1 ]
Zhang, Xin-ming [1 ]
Liu, Sheng-dan [1 ]
Tan, Qi [1 ]
Li, Dong-feng [1 ]
机构：
[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2014年 / 24卷 / 07期
关键词：
7050-T6 aluminum alloy; thick plate; exfoliation corrosion; quench transfer time; electrochemistry; MG-CU ALLOYS; MECHANICAL-PROPERTIES; MICROSTRUCTURES;
D O I：
10.1016/S1003-6326(14)63342-2
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The exfoliation corrosion (EFC) behavior of 7050-T6 aluminum alloy treated with various quench transfer time after solution heat treatment was investigated by standard EFC immersion tests, strength loss measurements after EFC tests and electrochemical impedance spectroscope (EIS) technique. The results showed that EFC resistance of the alloy decreased with increasing quench transfer time. Backscattered electron scanning electron microscope (SEM) together with transmission electron microscope (TEM) observations revealed that the coverage ratio and microstructure of precipitates at grain boundary area are the most important factors which influence the EFC susceptibility of the alloy, while precipitate-free zone (PFZ) near grain boundary has no or only a minor effect on it. In addition, galvanostatic measurements of the alloy present a good correlation between EFC resistance and transients in potential. The cumulated number of transients in potential can be used to evaluate EFC resistance of the alloy.
引用
收藏
页码：2258 / 2265
页数：8
相关论文
共 50 条
  • [41] Exfoliation Corrosion Behavior of 2B06 Aluminum Alloy in a Tropical Marine Atmosphere
    Z. Y. Cui
    X. G. Li
    K. Xiao
    C. F. Dong
    L. W. Wang
    D. W. Zhang
    Z. Y. Liu
    Journal of Materials Engineering and Performance, 2015, 24 : 296 - 306
  • [42] Exfoliation Corrosion Behavior of 2B06 Aluminum Alloy in a Tropical Marine Atmosphere
    Cui, Z. Y.
    Li, X. G.
    Xiao, K.
    Dong, C. F.
    Wang, L. W.
    Zhang, D. W.
    Liu, Z. Y.
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2015, 24 (01) : 296 - 306
  • [43] Effect and simulation of tensile stress on corrosion behavior of 7050 aluminum alloy in a simulated harsh marine environment
    Yan, Xiaohan
    Rong, Husong
    Fan, Weijie
    Yang, Jie
    Zhou, Changlong
    Li, Shulin
    Zhao, Xiaodong
    ENGINEERING FAILURE ANALYSIS, 2024, 156
  • [44] The effect of applied tensile stress on the exfoliation corrosion of 7075-T6 alloy
    Su, J.
    Zhang, Z.
    Shi, Y.
    Yang, Z.
    Zhang, J.
    Cao, C.
    MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2006, 57 (09): : 729 - 733
  • [45] Corrosion mechanism and fatigue behavior of 2A70-T6 aluminum alloy under alternating corrosion and fatigue
    Fu, Lei
    Li, Hui
    Lin, Li
    Wang, Qingyuan
    Fan, Qi
    Huang, Xinjie
    Li, XiuLan
    Lai, Sheng
    Chen, Lifei
    ANTI-CORROSION METHODS AND MATERIALS, 2021, 68 (05) : 422 - 437
  • [46] CONSTITUTIVE MODELING OF THE ELASTIC PLASTIC BEHAVIOR OF 7050-T7451 ALUMINUM-ALLOY
    KURUPPU, MD
    WILLIAMS, JF
    BRIDGFORD, N
    JONES, R
    STOUFFER, DC
    JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, 1992, 27 (02): : 85 - 92
  • [47] Effects of chromic acid anodizing on fatigue behavior of 7050 T7451 aluminum alloy
    Ilhan, Cagri
    Gurbuz, Riza
    MATERIALS TESTING, 2021, 63 (09) : 805 - 810
  • [48] Impact of local tensile and bending stress on exfoliation corrosion behavior of aluminum alloy 2024-T3 for civil aircraft skin
    Ji, Z. (zhji@cauc.edu.cn), 1600, AAAS Press of Chinese Society of Aeronautics and Astronautics (33):
  • [49] Effect of Solution Temperature on the Corrosion Behavior of 6061-T6 Aluminum Alloy in NaCl Solution
    M. Zhu
    B. Z. Zhao
    Y. F. Yuan
    S. Y. Guo
    J. Pan
    Journal of Materials Engineering and Performance, 2020, 29 : 4725 - 4732
  • [50] Effect of Structural Gap Width on Corrosion Behavior of 6A01-T5 Aluminum Alloy
    Sun, Xiaoguang
    Guo, Xiaoyu
    Xiang, Li
    Li, Bowen
    Ma, Maishou
    Surface Technology, 2024, 53 (20): : 61 - 68
12345