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Comportamiento electroquimico de un acero inoxidable AISI 430 implantado con cerio

机译:植入铈的AISI 430不锈钢的电化学行为

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Chemical treatment in solutions containing cerium compounds has been widely used for prevention of localized corrosion in aluminium alloys (pitting corrosion) as well as in stainless steels (crevice corrosion). Ionic implantation presents several advantages for stainless steels. The present paper is devoted to study the effect of cerium implantation on the properties of passive films formed on an AISI 430 stainless steel in alkaline medium. The electrochemical study is performed by cyclic voltammetry and EIS. The chemical characterisation of the oxides film developed is performed by XPS, and the morphological study corresponds to SEM examination. The results show that cerium implantation hinders magnetite formation as well as chromium oxidation processes.
机译:在包含铈化合物的溶液中进行化学处理已广泛用于防止铝合金和不锈钢(缝隙腐蚀)中的局部腐蚀。离子注入为不锈钢提供了许多优势。本文致力于研究铈注入对碱性介质中AISI 430不锈钢上形成的钝化膜性能的影响。通过循环伏安法和EIS进行电化学研究。通过XPS对形成的氧化物膜进行化学表征,其形态学研究与SEM检查相对应。结果表明,铈注入会阻碍磁铁矿的形成以及铬的氧化过程。

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