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首页> 外文期刊>Applied Surface Science >Growth behavior of MgAl-layered double hydroxide films by conversion of anodic films on magnesium alloy AZ31 and their corrosion protection
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Growth behavior of MgAl-layered double hydroxide films by conversion of anodic films on magnesium alloy AZ31 and their corrosion protection

机译：镁合金AZ31上阳极膜转变成MgAl层状双氢氧化物膜的生长行为及其腐蚀防护

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摘要

MgAl-LDH films were produced through hydrothermally chemical conversion of pre-prepared anodic films on Mg alloy AZ31. The growth behavior and corrosion performance of the LDH films were investigated. Results reveal that morphology, chemical compositions and structure of LDH films vary greatly as a function of the conversion treatment conditions. Internal sources of Mg2+ and Al3+ cations for the formation of LDH films were ascribed to: (i) degradation of the anodic films; and (ii) dissolution of the AZ31 substrate. Moreover, the Stranski-Krastanov (SK) growth mode, two-dimensional layer growth (2D) to three-dimensional (3D) growth, was proposed to explain the transformation process.
机译：MgAl-LDH膜是通过对镁合金AZ31上预先制备的阳极膜进行水热化学转化而制得的。研究了LDH薄膜的生长行为和腐蚀性能。结果表明，LDH膜的形态，化学组成和结构随转化处理条件的变化而变化很大。用于形成LDH膜的Mg2 +和Al3 +阳离子的内部来源归因于：（i）阳极膜的降解； （ii）溶解AZ31底物。此外，提出了Stranski-Krastanov（SK）生长模式，即二维层生长（2D）到三维（3D）生长，以解释转变过程。

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  • 来源
    《Applied Surface Science》 |2018年第31期|419-429|共11页
  • 作者

    Zhang Gen; Wu Liang; Tang Aitao; Chen Xiao-Bo; Ma Yanlong; Long Ying; Peng Peng; Ding Xingxing; Pan Huiling; Pan Fusheng;

  • 作者单位

    Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;

    Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;

    Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;

    RMIT Univ, Sch Engn, Carlton, Vic 3053, Australia;

    Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400054, Peoples R China;

    Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;

    Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;

    Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;

    Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;

    Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Layered double hydroxide; Growth behavior; Anodizing; Corrosion resistance; Magnesium alloys;

    机译：层状双氢氧化物;生长行为;阳极氧化;耐蚀性;镁合金;

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