Corrosion behaviour of Zn-Al pseudo-alloy coating on carbon steel in chloride environments

被引：10
|
作者：
Liu An Qiang [1 ]
Xiao Kui [1 ]
Dong Chao Fang [1 ]
Li Xiao Gang [1 ]
机构：
[1] Univ Sci & Technol Beijing, Adv Mat & Technol Inst, Beijing 100083, Peoples R China
来源：
METALLURGY TECHNOLOGY AND MATERIALS | 2012年 / 567卷
关键词：
arc thermal spraying; Zn-Al pseudo-alloy coating; corrosion behavior; salt spray test;
D O I：
10.4028/www.scientific.net/AMR.567.45
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, Zn-Al alloy and Zn-Al pseudo-alloy coatings are deposited on carbon steel by arc spray technology. The corrosion behaviour of the coatings has been studied by salt spray test and electrochemical experiment. The morphology of the coatings exposed to salt spray test for 400 h was analyzed using SEM and EDS. Results show that corrosion rate of Zn-Al alloy coating is faster than that of Zn-Al pseudo-alloy coating and the steel substrate is attacked. The corrosion products formed on the surface of Zn-Al alloy coating were loose, with a large number of cracks and holes, but the Zn-Al pseudo-alloy coating is converted into a stable Al-rich oxide layer, which protects the steel substrate against corrosive attacks and enhances the corrosion resistance of the Zn-Al pseudo-alloy coating. Electrochemical tests show the Zn-Al pseudo-alloy coating as a sacrificial protection coating has the capability of providing sacrificial protection for the steel substrate.
引用
收藏
页码：45 / 48
页数：4
相关论文
共 50 条
  • [21] Investigation into the effects of metallic coating thickness on the corrosion properties of Zn-Al alloy galvanising coatings
    Penney, David J.
    Sullivan, James H.
    Worsley, David A.
    CORROSION SCIENCE, 2007, 49 (03) : 1321 - 1339
  • [22] Formation of nano-crystalline corrosion products on Zn-Al alloy coating exposed to seawater
    Li, Y
    CORROSION SCIENCE, 2001, 43 (09) : 1793 - 1800
  • [23] Investigation of Corrosion Resistance and Interfacial Bonding Properties of Zn/Zn-Al Multilayer Coating/Steel Substrate System
    Zhang, Hua
    Tao, Jie
    Li, Qi Liang
    Yang, Jian
    Addae, Maxwell
    JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2021, 33 (01)
  • [24] Corrosion resistance of thermal sprayed film of Zn, Al and Zn-Al alloy against atmosphere corrosion
    Nuriya, Hirinobu
    Suzuki, Tsuguo
    Ishikawa, Kazuo
    Kitamura, Yoshiharu
    Zairyo to Kankyo/ Corrosion Engineering, 2002, 51 (09): : 404 - 409
  • [25] Corrosion behavior and antifouling ability of Cu-Zn-Al/Zn-Al composite coating on Q235 steel
    Qi, Yan
    Liang, Wenping
    Miao, Qiang
    Lin, Hao
    An, Hao
    Liu, Yangyang
    Zuo, Shiwei
    Ma, Hairui
    SURFACE & COATINGS TECHNOLOGY, 2021, 405
  • [26] Corrosion Behaviour of Steel/55% Al-Zn Alloy/Paint Systems Exposed to Natural and Artificial Environments
    Elsner, Cecilia I.
    del Amo, Delia B.
    Hernandez, Luis S.
    Di Sarli, Alejandro R.
    CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2014, 92 (04): : 623 - 632
  • [27] EFFECT OF MATRIX STRUCTURE ON THE CORROSION BEHAVIOR OF ZN-AL ALLOY
    UCHIYAMA, Y
    HASAKA, M
    KOGA, H
    JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1986, 50 (11) : 969 - 973
  • [28] Effect of nickel aluminides on tribological behaviour of Zn-Al alloy
    Choudhury, P
    Das, S
    MATERIALS SCIENCE AND TECHNOLOGY, 2003, 19 (04) : 535 - 537
  • [29] Study on the corrosion electrochemistry behavior and wear resistance of the arc thermal sprayed Zn-Al alloy coating
    Zou, Zhixiang
    Zeng, Jiao
    Liu, Zhengwei
    Mo, Yuandong
    Liang, Guiming
    Wang, Liangliang
    Guo, Zhongning
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 24 : 8414 - 8428
  • [30] Effects of Al and RE on microstructure and corrosion resistance of Zn-Al alloy coatings
    He, Zhi-Rong
    He, Ying
    Liu, Ji-Tuo
    Xie, Kai
    Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals, 2014, 24 (08): : 2020 - 2025
12345