Current Issue Cover
Advanced Search
Founded in 1987， Bimonthly
Supervisor：Jiangxi University Of Science And Technology
Sponsored by：Jiangxi University Of Science And Technology
Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 10 Issue 3
Jun.  2019
Turn off MathJax
Article Contents
Abstract
References
Related Articles
HUANG Jingming, WANG Zhaowen, LIU Zengwei, TIAN Yabin, YE Changmei, YANG Shaohua. Analysis of local corrosion of 7075 aluminum alloy by SECM[J]. Nonferrous Metals Science and Engineering, 2019, 10(3): 14-20. DOI: 10.13264/j.cnki.ysjskx.2019.03.003
Citation: HUANG Jingming, WANG Zhaowen, LIU Zengwei, TIAN Yabin, YE Changmei, YANG Shaohua. Analysis of local corrosion of 7075 aluminum alloy by SECM[J]. Nonferrous Metals Science and Engineering, 2019, 10(3): 14-20. DOI: 10.13264/j.cnki.ysjskx.2019.03.003
shu

Analysis of local corrosion of 7075 aluminum alloy by SECM

  • School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

More Information
  • Received Date: January 09, 2019
  • Published Date: June 29, 2019
    Graphical Abstract
    • Abstract
  • The 0.6 mol /L NaCl solution was used to corrode 7075 aluminum alloy, and the approximation curve and surface scanning test were carried out by scanning electrochemical microscope. The morphology of the alloy was analyzed by X-ray diffractometer, and the composition of corrosion products was tested by energy spectrometer to study the electrochemical mechanism of local corrosion of 7075 aluminum alloy. The results show that the approximation curve presents positive feedback, and the current of the probe increases with the decrease of its distance from the alloy substrate; the active spots on the surface of the alloy form a wide range of pitting corrosion with the increasing activation of chloride ions; chloride ions destroy the passivated layer and make its inner surface bare by adsorbing and reacting with the layer on the surface of the alloy. The second phase electrode potential inside turns negative, and together with the aluminum matrix, forms a corrosion micro battery. Its anodic corrosion and dissolution reduce the strength and corrosion resistance of the alloy.
    • FullText(HTML)
    • References (20)
  • [1]
    FLECK P, CALLEROS D, MADSEN M, et al.Retro gression and reaging of 7075 T6 aluminum alloy[A]//Mater Sci Forum[C].Swizerland: 2000 Trans Tech Publications, 2000, 649-654.
    [2]
    TSAI T C, CHANG J C, CHUANG T H. Stress corrosion cracking of super plastically formed 7475 aluminum alloy[J]. Metall Mater Trans A, 1996, 28A(10):2113-2121.
    [3]
    屈苗, 刘宇, 肖政兵.铝合金夹杂物基本性质的第一性原理研究[J].有色金属科学与工程, 2018, 9(6): 22-25. http://ysjskx.paperopen.com/oa/DArticle.aspx?type=view&id=201806001
    [4]
    刘兵, 彭超群, 王日初, 等.大飞机用铝合金的研究现状及展望[J].中国有色金属学报, 2010, 20(9):1705-1709. http://d.old.wanfangdata.com.cn/Periodical/zgysjsxb201009008
    [5]
    李宁.浅谈金属材料的防腐能力改进措施[J].世界有色金属, 2016(24):233. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=sjysjs201612119
    [6]
    ARULIAH R, WANG X, MANIVANNAN S, et al. Airborne bacteria associated with corrosion of mild steel 1010 and aluminum alloy 1100[J]. Environmental Science and Pollution Research, 2017, 24(9): 8120-8136. doi: 10.1007/s11356-017-8501-z
    [7]
    HEI H, XIA D H, SONG S Z, et al.Sensing atmospheric corrosion of carbon steel and low-alloy steel using the electrochemical noise technique: effects of weather conditions[J]. Protection of Metals and Physical Chemistry of Surfaces, 2017, 53(6): 1100-1113. doi: 10.1134/S2070205117060119
    [8]
    李丽, 苏霄.1050A铝合金模拟海洋大气环境腐蚀行为的中性盐雾试验[J].腐蚀与防护, 2014, 3(4):367-386. http://cdmd.cnki.com.cn/Article/CDMD-10076-1015533051.htm
    [9]
    周松, 许良, 回丽, 等.不同腐蚀环境下高强铝合金腐蚀行为[J].中国机械工程, 2017(16): 2000-2007. doi: 10.3969/j.issn.1004-132X.2017.16.016
    [10]
    张正, 宋诗哲, 卢玉琢, 等.模拟污染潮湿大气环境下LY12CZ、LC4CS铝合金腐蚀行为研究[J].中国腐蚀与防护学报, 2007, 27(3):129-133. doi: 10.3969/j.issn.1005-4537.2007.03.001
    [11]
    杨少华, 刘增威, 林明, 等.7075铝合金在不同pH值NaCl溶液中的腐蚀行为[J].有色金属科学与工程, 2017, 8(4): 24-28. http://ysjskx.paperopen.com/oa/DArticle.aspx?type=view&id=201612011
    [12]
    孙飞龙, 李晓刚, 卢琳, 等.5052和6061铝合金在中国南海深海环境下的腐蚀行为研究[J].金属学报, 2013, 49(10):1219-1226. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=jsxb201310009
    [13]
    郑传波, 李春岭, 益帼, 等.高强铝合金6061和7075在模拟海洋大气环境中的腐蚀行为[J].材料保护, 2014, 47(6):38-40. http://d.old.wanfangdata.com.cn/Periodical/clbh201406011
    [14]
    BARD A J, DENUAULT G, FRIESINGER R A, et al. Scanning electrochemical microscopy: theory and application of the transient (chronoamperometric) SECM response[J]. Analytical Chemistry, 1991, 63(13):1282-1288. doi: 10.1021/ac00013a019
    [15]
    WEI C, BARD A J, MIRKIN M V. Scanning electrochemical microcopy.31.appilcaiton of secm to the study of charge-transfer process at the liquid-liquid interface[J]. Phys Chem, 1995, 99(43):16033-16042. doi: 10.1021/j100043a050
    [16]
    MARIELA A B H, JOSE L F. Analysis of the hydrogen electrode reaction mechanism in thin-layer cells. 3. Study of hydrogen electro-oxidation by scanning electrochemical microscopy[J].Journal of Electroanalytical Chemistry, 2017(784):33-40. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=b13b39b97f0ba93becebfe3713d27455
    [17]
    何辉超, SEAN P B, BUDDIE C M, et al.扫描电化学显微镜在光电能源研究领域的应用[J].化学进展, 2016(6):908-912. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hxjz201606012
    [18]
    GRAEDEL T E.Corrosion mechanisms for aluminum exposed to the heat atmosphere[J]. Journal of the Electrochemical Society, 1989, 136(4): 204-212. doi: 10.1149/1.2096869
    [19]
    李春岭.7075铝合金应力腐蚀开裂机理研究[D].镇江: 江苏科技大学, 2014(6): 55-58.
    [20]
    马景灵, 文九巴, 卢现稳.η相在Al-Zn-In-Mg-Ti牺牲阳极合金中的活化作用[J].特种制造及有色合金, 2010, 30(1):18-20. http://d.old.wanfangdata.com.cn/Periodical/tzzzjyshj201001007
    • Related Articles

  • Related Articles

    [1]GUO Hao, WANG Yajie, ZHAO Hongbo, ZUO Haibin. Numerical simulation of pulverized coal forming process[J]. Nonferrous Metals Science and Engineering, 2024, 15(3): 357-363. DOI: 10.13264/j.cnki.ysjskx.2024.03.006
    [2]NIE Jincheng, YE Jieyun, WANG Zhigang, HE Xiaoxuan, CHEN Zihui. Casting process optimization of martensitic stainless steel baffle based on ProCAST numerical simulation[J]. Nonferrous Metals Science and Engineering, 2020, 11(6): 27-33. DOI: 10.13264/j.cnki.ysjskx.2020.06.004
    [3]CHENG Qiuting, DENG Fei, CHEN Yanhong, XIA Yijiang, WANG Xiaojun. Numerical simulation analysis on the stability of mined-out area[J]. Nonferrous Metals Science and Engineering, 2015, (2): 85-88. DOI: 10.13264/j.cnki.ysjskx.2015.02.016
    [4]ZHAO Kui, SHAO Hai, XU Feng, ZENG Peng, DENG Xiao-ping, WANG Ming. Numerical simulation of stability of mining of different mining entrances in a copper mine[J]. Nonferrous Metals Science and Engineering, 2013, 4(2): 46-50. DOI: 10.13264/j.cnki.ysjskx.2013.02.009
    [5]FENG Kai, ZHONG Jian-hua, TANG Zhi-li. The 3-D numerical simulation of heat transfer process for multi-start spiral pipe[J]. Nonferrous Metals Science and Engineering, 2012, 3(3): 95-98. DOI: 10.13264/j.cnki.ysjskx.2012.03.006
    [6]WU Chang-fu, TANG Min-bo, GU Peng, LIU Hou-ming. Numerical simulation on the partial ventilation in the single entry mine tunnel[J]. Nonferrous Metals Science and Engineering, 2012, 3(3): 71-73. DOI: 10.13264/j.cnki.ysjskx.2012.03.014
    [7]RAO Yun-zhang, CHEN Hui, XIAO Guang-zhe, CHEN Guo-liang. On the Design of Stope Bottom Structures Based on FLAC 3D Numerical Simulation[J]. Nonferrous Metals Science and Engineering, 2011, 2(2): 43-47. DOI: 10.13264/j.cnki.ysjskx.2011.02.009
    [8]XU Cong-wu, ZHAO Kui, XIE Dao-hui. Numerical Simulation Research on Tunnel Arrangement in Schistosity Rock[J]. Nonferrous Metals Science and Engineering, 2008, 22(3): 6-8.
    [9]CUI Dong-liang, LI Xi-bing, ZHAO Guo-ya. Analysis of the Numerical Simulation to Structure Parameter of Hard-To-Mine Ore Body in Xincheng Gold Mine[J]. Nonferrous Metals Science and Engineering, 2006, 20(3): 13-17.
    [10]QIAO Jun-yu, XU Guo-yuan. Numerical Simulation in Reinforcement for Deep Foundation Pit with Soil Nailing[J]. Nonferrous Metals Science and Engineering, 2005, 19(4): 24-24.

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (193) PDF downloads (9) Cited by()
    Related

    Copyright © 2010 Editorial Department of Nonferrous Metals Science and Engineering All rights reserved

    Address：11th floor, bishop building, University of science and technology, No. 86, Hongqi Avenue, Ganzhou City, Jiangxi Province  Tel：0797-8312555

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return