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Surface Characterization Of Copper, Zinc And Brass In Contact With Tap Water Inhibited With Phosphate Ions

机译：铜，锌和黄铜与磷酸盐离子抑制的自来水接触的表面特性

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摘要

The composition of the surface layers has been investigated on copper, zinc and brass in contact with moderately hard, highly carbonated and chloride rich artificial tap water (ATW). Cyclic voltammetry, reflectance spectroscopy. X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy have been used to identify the changes in composition that result from the incorporation of sodium orthophosphate to ATW. The results showed that when PO_4~(3-) is added, the film changes its composition and it also becomes thinner, denser and more compact. On copper, the presence of CuO in the passive film can be correlated to the improvement in the corrosion behavior in the presence of phosphate ions. In the case of brass, the development of a thinner, compact and less porous Zn_3(PO_4)_2 layer hinders Cu(I) dissolution. A mechanism explaining the effect of this inhibitor is proposed, which accounts for the experimental results.
机译：已经在铜，锌和黄铜与中等硬度，高度碳酸化和富含氯化物的人造自来水（ATW）接触的情况下研究了表面层的组成。循环伏安法，反射光谱法。 X射线衍射，拉曼光谱和X射线光电子能谱已用于鉴定由正磷酸钠掺入ATW引起的成分变化。结果表明，加入PO_4〜（3-）后，薄膜的组成发生变化，薄膜也变得更薄，更致密，更致密。在铜上，钝化膜中CuO的存在与磷酸盐离子存在下腐蚀行为的改善有关。在黄铜的情况下，较薄，致密且多孔性较小的Zn_3（PO_4）_2层的发展阻碍了Cu（I）的溶解。提出了解释该抑制剂作用的机理，其解释了实验结果。

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  • 来源
    《Applied Surface Science》 |2011年第23期|p.10089-10095|共7页
  • 作者

    LYohai; W.H. Schreiner; M. Vazquez; M.B. Valcarce;

  • 作者单位

    Divisidn Corrosion, 1NTEMA, Facultad de Ingenieria, UNMdPJuan BJusto 4302 - B7608FDQ_Mar del Plata. Argentina;

    Laboratdrio de Superficies e InterBases, Departamento de Fisica, Universidade Federal do Parana, 81531-990 Curitiba, PR, Brazil;

    Divisidn Corrosion, 1NTEMA, Facultad de Ingenieria, UNMdPJuan BJusto 4302 - B7608FDQ_Mar del Plata. Argentina;

    Divisidn Corrosion, 1NTEMA, Facultad de Ingenieria, UNMdPJuan BJusto 4302 - B7608FDQ_Mar del Plata. Argentina;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Passive film; Copper; Zinc; Brass; Tap water;

    机译：钝化膜;铜;锌;黄铜;自来水;

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