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首页> 外文期刊>RSC Advances >The effect of microstructure and elemental content on corrosion and corrosion inhibition of mild steel in a 0.5 M H2SO4 environment
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The effect of microstructure and elemental content on corrosion and corrosion inhibition of mild steel in a 0.5 M H2SO4 environment

机译：微观结构和元素含量对0.5MH2SO4环境中低碳钢腐蚀和腐蚀抑制的影响

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摘要

The influence of composition and surface microstructure on the corrosion behavior of low carbon steel specimens from Nigeria (NCS) and China (CCS) in a 0.5 M H2SO4 environment has been investigated using electrochemical techniques and surface probe techniques. The corrosion inhibition performance of Chrysophyllum albidum extract (CA) and synergistic iodide additives (KI) were assessed as well. The obtained results reveal that NCS was more susceptible to corrosion in uninhibited 0.5 M H2SO4 solution than CCS, which presented a more positive surface charge. CA inhibited the corrosion of both specimens, yielding maximum inhibition efficiencies of 89.6% and 48.5% for NCS and CCS, respectively, which were further increased to 93.9% and 98.9% on introduction of iodide ions. The corrosion and corrosion inhibition behavior of the carbon steel specimens were influenced by the metal composition and microstructure.
机译：用电化学技术和表面探针技术研究了组合物和表面微观结构对尼日利亚（NCS）和中国（CCS）的低碳钢样品腐蚀行为的影响。 还评估Chrysophyllum Assidum提取物（CA）和协同碘化物添加剂（Ki）的腐蚀抑制性能。 所得结果表明，NCS比CCS在不羁的0.5MH2SO4溶液中更容易腐蚀，其呈现更阳性表面电荷。 CA抑制了两种样品的腐蚀，产生了89.6％的最大抑制作用89.6％和48.5％，分别在引入碘离子时进一步增加到93.9％和98.9％。 碳钢样品的腐蚀和腐蚀抑制行为受金属组合物和微观结构的影响。

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  • 来源
    《RSC Advances》 |2015年第114期|共10页
  • 作者

    Maduabuchi A. Chidiebere; Emeka E. Oguzie; Li Liu;

  • 作者单位

    Institute of Metal Research Chinese Academy of Sciences 62 Wencui Rd Shenyang 110016 China.;

    Electrochemistry and Materials Science Research Unit Department of Chemistry Federal University of Technology PMB 1526 Owerri Imo State Nigeria;

    Institute of Metal Research Chinese Academy of Sciences 62 Wencui Rd Shenyang 110016 China.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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