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首页> 外文期刊>Journal of coatings technology and research >The corrosion inhibition of maraging steel under weld aged condition by 1(2E)-1-(4-aminophenyl)-3-(2-thienyl)prop-2-en-1-one in 1.5 M hydrochloric acid medium
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The corrosion inhibition of maraging steel under weld aged condition by 1(2E)-1-(4-aminophenyl)-3-(2-thienyl)prop-2-en-1-one in 1.5 M hydrochloric acid medium

机译：1（2E）-1-（4-氨基苯基）-3-（2-噻吩基）丙-2-烯-1-酮在1.5 M盐酸介质中对时效钢在焊接时效下的腐蚀抑制作用

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摘要

The influence of l(2E)-1-(4-aminophenyl)-3-(2-thienyl)prop-2-en-1-one (ATPI) on the corrosion behavior of weld aged maraging steel in 1.5 M hydrochloric acid was studied by potentiodynamic polarization method and AC impedance (EIS) technique at different temperatures. The results showed that the inhibition efficiency of ATPI increased with the increase in the concentration of inhibitor and decreased with the increase in temperature. ATPI acts as a mixed type inhibitor without affecting the mechanism of the hydrogen evolution reaction or iron dissolution. The adsorption of ATPI on a weld aged maraging steel surface obeys the Langmuir adsorption isotherm equation. Both activation and thermody-namic parameters were calculated and discussed. ATPI inhibits the corrosion through both physisorption and chemisorption on the alloy surface. The surface morphology of the weld aged maraging steel specimens in the presence and the absence of the inhibitors was studied by the respective SEM images.
机译：l（2E）-1-（4-氨基苯基）-3-（2-噻吩基）丙-2-烯-1-酮（ATPI）对焊接时效马氏体时效钢在1.5 M盐酸中的腐蚀行为的影响为电位极化方法和交流阻抗（EIS）技术在不同温度下进行的研究。结果表明，ATPI的抑制效率随抑制剂浓度的增加而增加，随温度的升高而降低。 ATPI用作混合型抑制剂，而不会影响氢释放反应或铁溶解的机理。焊接时效马氏体时效钢表面上ATPI的吸附遵循Langmuir吸附等温线方程。计算和讨论了活化参数和热动力学参数。 ATPI通过对合金表面的物理吸附和化学吸附来抑制腐蚀。通过各自的SEM图像研究了在存在和不存在抑制剂的情况下的焊接时效马氏体时效钢试样的表面形态。

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  • 来源
    《Journal of coatings technology and research》 |2012年第4期|p.483-493|共11页
  • 作者

    B. S. Sanatkumar; Jagannath Nayak; A. Nityananda Shetty;

  • 作者单位

    Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Srinivasnagar 575 025, Karnataka,India;

    Department of Metallurgical and Materials Engineering,National Institute of Technology Karnataka, Surathkal,Srinivasnagar 575 025, Karnataka, India;

    Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Srinivasnagar 575 025, Karnataka,India;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    maraging steel; ATPI; corrosion rate; EIS; SEM;

    机译：马氏体时效钢ATPI;腐蚀率EIS;扫描电镜;

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