Effect of additives on the corrosion mechanism of nanocrystalline zinc-nickel alloys in an alkaline bath

被引:26
作者
Feng, Zhongbao [1 ]
Ren, Lili [1 ]
Zhang, Jinqiu [1 ]
Yang, Peixia [1 ]
An, Maozhong [1 ]
机构
[1] Harbin Inst Technol, Sch Chem Engn & Technol, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China
来源
RSC ADVANCES | 2016年 / 6卷 / 91期
关键词
ZN-NI ALLOY; ELECTROCHEMICAL DEPOSITION; SURFACE-CHEMISTRY; MG-AL; COATINGS; ELECTRODEPOSITION; BEHAVIOR; RESISTANCE; STEEL; NACL;
D O I
10.1039/c6ra18476f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The surface properties and wear resistance of dull Zn-Ni coatings are significantly improved by adding additives in the studied DMH-based bath. However, as the anti-corrosion coatings, the influence of the studied additives on corrosion resistance of Zn-Ni alloys has not been well investigated. In this study, the effect of additives on the corrosion mechanism of Zn-Ni alloys is investigated by the XPS technique and electrochemical measurements. The formation mechanism of the corrosion product film is also studied. It is found that simonkolleite, hydrozincite and zinc oxide are the main corrosion products for both dull and bright Zn-Ni samples. The XPS analysis reveals that the amount of simonkolleite is over 64.15% after 3 h of immersion, whereas the share of zinc oxide as a more stable corrosion product increases to above 35.89% after 24 h of exposure. Better corrosion resistance is observed for bright Zn-Ni alloys compared to that of dull Zn-Ni alloys. This behavior could be due to the smaller grain size and hydrophilic surface of bright Zn-Ni alloys during the initial stage of immersion. After the long immersion time, the better corrosion resistance of bright Zn-Ni samples is related to their increased amount of simonkolleite in the corrosion products. The corrosion resistance of the coatings decreases with increasing of the immersion time, which is associated with the increased share of zinc oxide and the decreased contact angle (CA). This could also be due to the increase of the porosity of corrosion products with the increase of immersion time. According to the above analysis, it is concluded that the corrosion products of bright Zn-Ni alloys have an increased amount of simonkolleite, which is formed at a quicker rate, resulting in the better corrosion resistance of bright Zn-Ni alloys compared to dull Zn-Ni alloys.
引用
收藏
页码:88469 / 88485
页数:17
相关论文
共 62 条
  • [1] Electrodeposition of Zn-Ni protective coatings from sulfate-acetate baths
    Beltowska-Lehman, E
    Ozga, P
    Swiatek, Z
    Lupi, C
    [J]. SURFACE & COATINGS TECHNOLOGY, 2002, 151 : 444 - 448
  • [2] Reverse pulse electrodeposition of Zn-Ni alloys from a chloride bath
    Boonyongmaneerat, Yuttanant
    Saenapitak, Sawalee
    Saengkiettiyut, Kanokwan
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 487 (1-2) : 479 - 482
  • [3] Nucleation and crystallization of otavite, witherite, calcite, strontianite, hydrozincite, and hydrocerussite by CO2 membrane diffusion technique
    Bucca, Maurizio
    Dietzel, Martin
    Tang, Jianwu
    Leis, Albrecht
    Koehler, Stephan Juergen
    [J]. CHEMICAL GEOLOGY, 2009, 266 (3-4) : 143 - 156
  • [4] Initial corrosion protection of Zn-Mn alloys electrodeposited from alkaline solution
    Bucko, M.
    Rogan, J.
    Stevanovic, S. I.
    Peric-Grujic, A.
    Bajat, J. B.
    [J]. CORROSION SCIENCE, 2011, 53 (09) : 2861 - 2871
  • [5] Study of the corrosion mechanism of the in situ grown Mg-Al-CO32- hydrotalcite film on AZ31 alloy
    Chen, Jun
    Song, Yingwei
    Shan, Dayong
    Han, En-Hou
    [J]. CORROSION SCIENCE, 2012, 65 : 268 - 277
  • [6] Electrochemical Deposition of γ-Phase Zinc-Nickel Alloys from Alkaline Solution
    Conrad, Heidi
    Corbett, John
    Goldenz, Teresa D.
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (01) : C29 - C32
  • [7] Characterization of corrosion products of Zn and Zn-Mg-Al coated steel in a marine atmosphere
    Diler, E.
    Rouvellou, B.
    Rioual, S.
    Lescop, B.
    Vien, G. Nguyen
    Thierry, D.
    [J]. CORROSION SCIENCE, 2014, 87 : 111 - 117
  • [8] Electrochemical and XPS investigation of the corrosion behavior of Alloy 690 at high-temperature water
    Duan, Zhengang
    Arjmand, Farzin
    Zhang, Lefu
    Meng, Fanjiang
    Abe, Hiroaki
    [J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2015, 19 (08) : 2265 - 2273
  • [9] Evolution of the surface chemistry of hot dip galvanized Zn-Mg-Al and Zn coatings on steel during short term exposure to sodium chloride containing environments
    Duchoslav, J.
    Steinberger, R.
    Arndt, M.
    Keppert, T.
    Luckeneder, G.
    Stellnberger, K. H.
    Hagler, J.
    Angeli, G.
    Riener, C. K.
    Stifter, D.
    [J]. CORROSION SCIENCE, 2015, 91 : 311 - 320
  • [10] XPS investigation on the surface chemistry of corrosion products on ZnMgAl-coated steel
    Duchoslav, J.
    Arndt, M.
    Keppert, T.
    Luckeneder, G.
    Stifter, D.
    [J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2013, 405 (22) : 7133 - 7144