Volume 39 Issue 10
Oct.  2017
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ZHUANG Jun-jie, ZHANG Xiao-yan, SUN Bin, SONG Ren-guo, LI Hai. Microarc oxidation coatings and corrosion behavior of 7050 aluminum alloy[J]. Chinese Journal of Engineering, 2017, 39(10): 1532-1539. DOI: 10.13374/j.issn2095-9389.2017.10.011
Citation: ZHUANG Jun-jie, ZHANG Xiao-yan, SUN Bin, SONG Ren-guo, LI Hai. Microarc oxidation coatings and corrosion behavior of 7050 aluminum alloy[J]. Chinese Journal of Engineering, 2017, 39(10): 1532-1539. DOI: 10.13374/j.issn2095-9389.2017.10.011
shu

Microarc oxidation coatings and corrosion behavior of 7050 aluminum alloy

  • 1) School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China

  • 2) Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou 213164, China

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  • Received Date: November 16, 2016
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    • Abstract
  • Ceramic coatings were formed on 7050 aluminum alloy (AA7050) by microarc oxidation (MAO). Subsequently, scanning electron microscopy (SEM) and energy-dispersive spectrometry (EDS) were used to evaluate the microstructure of the coatings. The coatings consist of an outer porous layer made of Al2O3 and an inner dense layer made of sintered alumina and aluminum substrate. Furthermore, potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS) were combined with slow strain rate tests (SSRT) to investigate the effect of microarc oxidation on the corrosion and stress corrosion cracking (SCC) of AA7050 in 3.5% NaCl solution. The corrosion on the surface of AA7050 and the corrosion rate and SCC decrease owing to the coatings on AA7050.
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    • References (13)
  • [3]
    Gao P, Zhou T T, Xu X Q, et al. Refinement mechanism research of Al 3 Ni phase in Ni-7050 alloy. Rare Metal Mat Eng, 2013, 42(1):6
    [5]
    Li Z H, Xiong B Q, Zhang Y A, et al. Investigation on strength, toughness and microstructure of an Al-Zn-Mg-Cu alloy prestretched thick plate in various ageing tempers. J Mater Process Tech, 2009, 209(4):2021
    [8]
    Lee H, Kim Y, Jeong Y, et al. Effects of testing variables on stress corrosion cracking susceptibility of Al 2024-T351. Corros Sci, 2012, 55:10
    [10]
    Dursun T, Soutis C. Recent developments in advanced aircraft aluminum alloys. Mater Des, 2014, 56:862
    [11]
    Bahadori E, Javadpour S, Shariat M H, et al. Preparation and properties of ceramic Al2O3 coating as TBCs on MCrAly layer applied on Inconel alloy by cathodic plasma electrolytic deposition. Surf Coat Technol, 2013, 228(Suppl 1):S611
    [13]
    Yang Y, Zhou L L. Improving corrosion resistance of friction stir welding joint of 7075 aluminum alloy by micro-arc oxidation. J Mater Sci Technol, 2014, 30(12):1251
    [14]
    Zhuang J J, Guo Y Q, Xiang N, et al. A study on microstructure and corrosion resistance of ZrO 2-containing PEO coatings formed on AZ31 Mg alloy in phosphate-based electrolyte. Appl Surf Sci, 2015, 357:1463
    [15]
    Li W Y, Jiang R R, Huang C J, et al. Effect of cold sprayed Al coating on mechanical property and corrosion behavior of friction stir welded AA2024-T351 joint. Mater Des, 2015, 65:757
    [17]
    Lei L, Shi J, Wang X, et al. Microstructure and electrochemical behavior of cerium conversion coating modified with silane agent on magnesium substrates. Appl Surf Sci, 2016, 376:161
    [18]
    Dayyari M R, Amadeh A, Sadreddini S. Application of magnesium phosphate coating on low carbon steel via electrochemical cathodic method and investigation of its corrosion resistance. J Alloy Compd, 2015, 647:956
    [19]
    Srinivasan P B, Riekehr S, Blawert C, et al. Slow strain rate stress corrosion cracking behavior of as-welded and plasma electrolytic oxidation treated AZ31HP magnesium alloy autogenous laser beam weldment. Mater Sci Eng A, 2009, 517(1-2):197
    [21]
    Guo H X,Ma Y, Wang J S, et al. Corrosion behavior of microarc oxidation coating on AZ91D magnesium alloy in NaCl solutions with different concentrations. T Nonferr Metal Soc China, 2012, 22(7):1786
    [22]
    Hussein R O, Northwood D O, Nie X. The effect of processing parameters and substrate composition on the corrosion resistance of plasma electrolytic oxidation (PEO) coated magnesium alloys. Surf Coat Technol, 2013, 237:357
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