EIS study of the rust converter effectiveness under different conditions

A. Collazo; X. R. Novoa; C. Perez; B. Puga

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EIS study of the rust converter effectiveness under different conditions

机译：不同条件下防锈剂有效性的EIS研究

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The present work evaluates the anticorrosive properties of a rust converter applied on pre-rusted steel samples obtained in atmospheres with different aggressiveness. The nature and morphology of oxide/conversion layer are characterised by XRD and SEM techniques. In order to make a comparative study, pre-rusted samples with and without rust converter are painted and the electrochemical behaviour is monitored using EIS technique. The results suggest that the conversion layer generated in non-aggressive media is not efficient and, consequently, the use of the rust converter is not beneficial, or even harmful, on the overall paint behaviour. Nevertheless, when it is applied on samples pre-corroded in aggressive media the formed conversion layer is more compact and the protection properties of the painted samples are clearly improved.

机译：本工作评估了在具有不同侵蚀性的大气中获得的预锈钢样品上使用的防锈剂的防腐性能。通过XRD和SEM技术表征了氧化物/转化层的性质和形态。为了进行比较研究，对带有和不带有除锈剂的预生锈样品进行了涂漆，并使用EIS技术监测电化学行为。结果表明，在非腐蚀性介质中产生的转化层效率不高，因此，使用锈转化剂对整体涂料性能无益，甚至无害。然而，当将其施加在侵蚀性介质中预腐蚀的样品上时，形成的转化层更致密，并且涂漆的样品的保护性能得到明显改善。

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来源
《Electrochimica Acta》 |2008年第25期|共10页
作者
A. Collazo; X. R. Novoa; C. Perez; B. Puga;
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正文语种 eng
中图分类电化学工业;物理化学（理论化学）、化学物理学;
关键词
Rust converter; Iron oxides; Conversion layer; Pre-corroded steel; Compact layer;

机译：防锈剂;氧化铁;转化层;预腐蚀钢;致密层;

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EIS study of the rust converter effectiveness under different conditions

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