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Influence of iron microstructure on the performance of polyacrylic acid as corrosion inhibitor in sulfuric acid solution

机译：铁的微观结构对硫酸溶液中聚丙烯酸作为缓蚀剂性能的影响

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摘要

The corrosion inhibition behavior of bulk nanocrystalline ingot iron (BNII) fabricated from coarse poly-crystalline ingot iron (CPU) by severe rolling technique by polyacrylic acid (PAA) was studied in 0.1 M H2SO4 using electrochemical impedance spectroscopy and potentiodynamic polarization techniques. The results indicated that PAA inhibited the acid induced corrosion of both iron specimens, with greater effect noted for BNII. The corrosion inhibiting effect was influenced by the microstructure of the iron samples. Synergistic inhibition effect was observed on addition of iodide ions to PAA in case of CPII while for BNII inhibition efficiency marginally increased.
机译：利用电化学阻抗谱和电位动力学极化技术研究了在0.1 M H2SO4中采用聚丙烯酸（PAA）的严格压延技术通过粗轧多晶锭铁（CPU）制备的块状纳米晶锭铁（BNII）的缓蚀性能。结果表明，PAA抑制了酸诱导的两个铁样品的腐蚀，对BNII的影响更大。铁样品的微观结构影响了缓蚀效果。对于CPII，在向PAA添加碘离子时观察到协同抑制作用，而对于BNII，抑制效率略有提高。

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  • 来源
    《Corrosion science》 |2011年第5期|p.1778-1785|共8页
  • 作者

    SA Umoren; Y. Li; F.H. Wang;

  • 作者单位

    State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, PR China,Department of Chemistry, Faculty of Science, University ofuyo, P.M.B 1017, Uyo, Nigeria;

    State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, PR China;

    State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, PR China;

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

    A. Iron; C. Corrosion inhibition; A. Polyacrylic acid; C. Nanocrystallization; C. Microstructures;

    机译：A.铁;C。腐蚀抑制;A.聚丙烯酸;C.纳米结晶;C．微观结构;

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