Advanced Search
LIU Yuwei1,2, YIN Qi1,2, WANG Zhenyao1, CAO Gongwang1, CAO Yan3, HUO Yang3, LV Gang3. Corrosion behavior of hot dip galvanized coating exposed in a simulated coastal-industrial atmosphere[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(5): 87-91. DOI: 10.12073/j.hjxb.2018390129
Citation: LIU Yuwei1,2, YIN Qi1,2, WANG Zhenyao1, CAO Gongwang1, CAO Yan3, HUO Yang3, LV Gang3. Corrosion behavior of hot dip galvanized coating exposed in a simulated coastal-industrial atmosphere[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(5): 87-91. DOI: 10.12073/j.hjxb.2018390129

Corrosion behavior of hot dip galvanized coating exposed in a simulated coastal-industrial atmosphere

More Information
  • Received Date: November 22, 2016
  • The corrosion process of hot-dip galvanized coating in a simulated coastal-industrial atmosphere was investigated by means of an unsaturated dry-wet alternating cycle accelerated corrosion test. By using weight loss measurement and potentiodynamic polarization, scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) and X-ray diffractometry (XRD) analyzed corrosion behavior of hot-dip galvanized coating exposed after 24, 48,96, 192, 336, and 672 h. The results show that corrosion kinetics followed the empirical equation D=Btn, and there is a corrosion rate transition from corrosion acceleration to deceleration. Before 96 h the corrosion process is controlled by the cathode diffusion process, while after 96 h by the anodic. The protectiveness of corrosion products NaZn4SO4Cl(OH)6·6H2O and Zn12(OH)15Cl3(SO4)3·5H2O which containing Cl is worse than that of initial products Zn5(CO3)2(OH)6.
  • 章小鸽. 锌的腐蚀与电化学[M]. 北京: 冶金工业出版社, 2008.[2] Almeida E, Morcillo M, Rosales B. Atmospheric corrosion of zinc partⅠ: rural and urban atmospheres[J]. British Corrosion Journal, 2000, 35(4): 284-288.[3] Almeida E, Morcillo M, Rosales B. Atmospheric corrosion of zinc partⅡ: marine atmospheres[J]. British Corrosion Journal, 2000, 35(4): 289-296.[4] Cole I S, Ganther W D,Furman S A,et al. Pitting of zinc: observations on atmospheric corrosion in tropical countries[J]. Corrosion Science, 2010, 52(3): 848-858.[5] 王绍明, 萧以德, 张三平. SO2/盐雾复合循环加速腐蚀试验模拟锌在户外大气暴露腐蚀行为[J]. 腐蚀与防护, 2005, 26(1): 13-17.Wang Shaoming, Xiao Yide, Zhang Sanping. SO2/Salt-spray synergistic accelerated test simulating atmospheric exposure corrosion behavior of zinc[J]. Corrosion and Protection, 2005, 26(1): 13-17.[6] 曹楚南. 中国材料的自然环境腐蚀[M]. 北京: 化学工业出版社, 2005.[7] 孔德军, 王进春, 叶存冬. X70高钢级管线焊接接头盐雾腐蚀机理[J]. 焊接学报, 2015, 36(5): 51-54.Kong Dejun, Wang Jinchun, Ye Cundong. Mechanism of salt spray corrosion of X70 high grade pipeline steel welded joints[J]. Transactions of the China Welding Institution, 2015, 36(5): 51-54.[8] 苟国庆, 黄 楠, 陈 辉, 等. 高速列车A7N01S-T5铝合金焊接接头盐雾腐蚀行为分析[J]. 焊接学报, 2011, 32(10): 17-20.Gou Guoqing, Huang Nan, Chen Hui,et al. Analysis on corrosion behavior of welded joint of A7N01ST5 aluminum alloy for high-speed train[J]. Transactions of the China Welding Institution, 2011, 32(10): 17-20.[9] Boelen B, Schmitz B, Defourny J,et al. A literature survey on the development of an accelerated laboratory test method for atmospheric corrosion of precoated steel products[J]. Corrosion Science, 1993, 34(11): 1923-1931.[10] Ma Y T, Li Y, Wang F H. The atmospheric corrosion kinetics of low carbon steel in a tropical marine environment[J]. Corrosion Science,2010, 52 (5): 1796-1800.
  • Related Articles

    [1]ZHANG Ke, LIU Wensheng, XU Dangwei, HUANG Zhong, PAN Hongbo, LIU Zhengdong, ZHANG Xi. Mechanical properties and simulated behavior in industrial atmosphere of welded joints of Q500qENH bridge weathering steels[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2025, 46(6): 61-72. DOI: 10.12073/j.hjxb.20240207002
    [2]XU Hao, CAO Rui, FAN Ding. Corrosion behavior of aluminum/steel dissimilar metal welded joints and influential factors: A review[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2024, 45(7): 116-128. DOI: 10.12073/j.hjxb.20230718001
    [3]CHI Luxin, GU Lingxiang, XU Huibin, HUANG Yan, QIN Quan, RAN Yang. Corrosion behavior of joints by electromagnetic pulse welding with aluminum to steel in neutral salt spray[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2023, 44(2): 40-47. DOI: 10.12073/j.hjxb.20220909003
    [4]GONG Lihua, GUO Weimin. Effect of UV light on the corrosion behaviors of aluminum alloy welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2022, 43(4): 106-112. DOI: 10.12073/j.hjxb.20210827002
    [5]ZHANG Timing, DENG Yunfa, CHEN Yuhua, FANG Yu, HU Xuebing. Effect of ultrasonic impact treatment on corrosion behavior of FSW joints of 2A12 aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(10): 38-41, 78. DOI: 10.12073/j.hjxb.20200403005
    [6]XU Lianyong1,2, KANG Zhaoyang1,2, LU Yongxin1,2, HAN Yongdian1,2. Analysis of corrosion behavior of carbon steel weld joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 97-101. DOI: 10.12073/j.hjxb.2018390022
    [7]FENG Lajun, DENG Bo, YAN Aijun, ZHANG Jing. Corrosion behavior of weld joints of substation grounding grid[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(10): 69-72.
    [8]ZHAO Xiaozhou, ZHOU Zheng, HE Dingyong, ZHAO Qiuying, LI Ran, JIANG Jianmin. Corrosion and wear behavior of wire-arc sprayed Ni-based coatings[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (4): 48-52.
    [9]TANG Jianqun, GONG Jianming. Analysis on properties of corrosion and hydrogen-permeation for weldment of SPV50Q steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (1): 57-60.
    [10]HUANG An-guo, Li Zhi-yuan, YU Sheng-fu, ZHOU Long-zao, ZHANG Guo-dong. Corrosion behavior of weld metal of low-alloy steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (11): 30-34.

Catalog

    Article views (599) PDF downloads (4) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return