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首页> 外文期刊>Corrosion science >Electrochemical corrosion and impedance study of SAE1045 steel under gel-like environment
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Electrochemical corrosion and impedance study of SAE1045 steel under gel-like environment

机译:类凝胶环境下SAE1045钢的电化学腐蚀和阻抗研究

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摘要

To present simulative study on corrosion of metal by sewage sludge, three kinds of gel-like systems based on SiO_2 gel and polyacrylamide gel are proposed. Comparative results of electrochemical polarization and impedance studies together with coupon test of SAE1045 steel under these gel-like surroundings and deionized water are investigated. Obvious pitting corrosion characteristic of the steel can be seen in gel-like systems with decreasing I_(corr) and more negative value of E_(corr) It is considered to be caused by electric field concentration effect at defected sites in covering layer on the surface of the steel formed by gel particles.
机译:为了对污水中污泥对金属的腐蚀进行模拟研究,提出了三种基于SiO_2凝胶和聚丙烯酰胺凝胶的凝胶状体系。研究了在这种凝胶状环境和去离子水作用下电化学极化和阻抗研究的比较结果,以及SAE1045钢的试样试验。在I_(corr)降低而E_(corr)负值更大的凝胶状体系中,可以看到钢的明显点蚀特性。这被认为是由于表面覆盖层缺陷部位的电场集中效应引起的由凝胶颗粒形成的钢。

著录项

  • 来源
    《Corrosion science》 |2013年第9期|408-413|共6页
  • 作者单位

    School of Materials, Shenzhen University, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, PR China;

    School of Materials, Shenzhen University, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, PR China;

    School of Materials, Shenzhen University, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, PR China;

    School of Materials, Shenzhen University, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, PR China;

    School of Materials, Shenzhen University, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, PR China;

    School of Materials, Shenzhen University, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Steel; B.EIS; B. Polarization; C. Acid corrosion; C. Pitting corrosion;

    机译:A.钢;B.EIS;B.极化;C.酸腐蚀;C.点蚀;

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