<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-249X</journal-id>
<journal-title><![CDATA[Journal of the Mexican Chemical Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Mex. Chem. Soc]]></abbrev-journal-title>
<issn>1870-249X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Química de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-249X2006000100004</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Electrochemical Behaviour of 1018, 304 and 800 Alloys in Synthetic Wastewater]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sandoval-Jabalera]]></surname>
<given-names><![CDATA[Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nevárez-Moorillón]]></surname>
<given-names><![CDATA[Guadalupe V.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chacón-Nava]]></surname>
<given-names><![CDATA[José G.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Malo-Tamayo]]></surname>
<given-names><![CDATA[José M.]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Villafañe]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Centro de Investigación en Materiales Avanzados S. C.  ]]></institution>
<addr-line><![CDATA[Chihuahua ]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Autónoma de Chihuahua Facultad de Ciencias Químicas ]]></institution>
<addr-line><![CDATA[Chihuahua ]]></addr-line>
<country>México</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Instituto de Investigaciones Eléctricas  ]]></institution>
<addr-line><![CDATA[Cuernavaca Morelos]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2006</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2006</year>
</pub-date>
<volume>50</volume>
<numero>1</numero>
<fpage>14</fpage>
<lpage>18</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2006000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2006000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2006000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Due to the fact that corrosion problems affecting the residual water treatment industry are varied and scarcely studied, this work presents an investigation of the corrosion behavior of important materials of engineering such as steel AISI-1018, AISI-304, and AISI-800 exposed to synthetic residual water under laboratory conditions. The electrochemical techniques used to asses the electrochemical behavior were linear polarization resistance (LPR), cyclic polarization curves (CPC) and electrochemical noise (ECN) techniques to determine corrosion rates, the susceptibility to localized corrosion and the most likely corrosion mechanism, respectively. In order to ascertain the amount of aerobic and anaerobic bacteria present on the steel surface, the Most Probable Number method (MPN) was employed. On the whole, the steels studied showed a better corrosion resistance in the following order: 800 > 304 > 1018. Also, the experimental results indicated that none of the steels demonstrated susceptibility to localized corrosion.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Debido a que los problemas de corrosión que afectan la industria de tratamiento de aguas residuales son variados y escasamente estudiados, se presenta un estudio del comportamiento de corrosión de los aceros AISI-1018, AISI-304 y AISI-800 expuestos en agua residual sintética para conocer su comportamiento bajo condiciones de laboratorio. Las técnicas electroquímicas empleadas para determinar el comportamiento de la corrosión fueron resistencia a la polarización lineal (RPL), curvas de polarización cíclica (CPC) y ruido electroquímico (REQ), para determinar velocidades de corrosión, susceptibilidad a corrosión localizada y el mecanismo más probable de corrosión, respectivamente. El método de número más probable (NMP) fue empleado para contar los microorganismos presentes en la superficie de los aceros. En general, los aceros estudiados presentaron una mejor resistencia a la corrosión en el orden siguiente: 800>304>1018. También, se determinó que los aceros no fueron susceptibles a la corrosión localizada durante el proceso de experimentación.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Polarization Resistance]]></kwd>
<kwd lng="en"><![CDATA[Cyclic Polarization]]></kwd>
<kwd lng="en"><![CDATA[Electrochemical Noise]]></kwd>
<kwd lng="en"><![CDATA[Steels]]></kwd>
<kwd lng="en"><![CDATA[Synthetic Wastewater]]></kwd>
<kwd lng="es"><![CDATA[Resistencia a la Polarización]]></kwd>
<kwd lng="es"><![CDATA[Polarización Cíclica]]></kwd>
<kwd lng="es"><![CDATA[Ruido Electroquímico]]></kwd>
<kwd lng="es"><![CDATA[Aceros]]></kwd>
<kwd lng="es"><![CDATA[Agua Residual Sintética]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Article</font></p>      <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="4"><b>Electrochemical Behaviour of 1018, 304 and 800 Alloys in Synthetic Wastewater</b></font></p>  	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="2"><b>Ra&uacute;l Sandoval&#45;Jabalera,<sup>1*</sup> Guadalupe V. Nev&aacute;rez&#45;Moorill&oacute;n,<sup>2</sup> Jos&eacute; G. Chac&oacute;n&#45;Nava,<sup>1</sup> Jos&eacute; M. Malo&#45;Tamayo,<sup>3</sup> and Alberto Mart&iacute;nez&#45;Villafa&ntilde;e<sup>1</sup></b></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><sup>1</sup>&nbsp;<i>Centro de Investigaci&oacute;n en Materiales Avanzados, Miguel de Cervantes 120, Complejo Ind. Chihuahua, C.P. 31109, Chihuahua, Chih. M&eacute;xico, Tel. (614) 439&#45;11&#45;45, Fax (614) 439&#45;11&#45;12</i>, e&#45;mail: *<a href="mailto:raul.sandoval@cimav.edu.mx">raul.sandoval@cimav.edu.mx</a></font></p>  	    <p align="justify"><font face="verdana" size="2"><sup>2</sup>&nbsp;<i>Facultad de Ciencias Qu&iacute;micas, Universidad Aut&oacute;noma de Chihuahua, C.P. 1542&#45;C. Chihuahua, Chih. M&eacute;xico, Tel. (614) 414&#45;4492, Fax (614) 413&#45;4795</i></font></p>  	    <p align="justify"><font face="verdana" size="2"><sup>3</sup>&nbsp;<i>Instituto de Investigaciones El&eacute;ctricas, Av. Reforma, C.P. 62490, Cuernavaca, Mor. M&eacute;xico, Tel. (777) 362&#45;38&#45;11, Fax (777) 362&#45;38&#45;11</i></font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2">Recibido el 5 de julio del 2005.    <br> 	Aceptado el 20 de enero del 2006.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Due to the fact that corrosion problems affecting the residual water treatment industry are varied and scarcely studied, this work presents an investigation of the corrosion behavior of important materials of engineering such as steel AISI&#45;1018, AISI&#45;304, and AISI&#45;800 exposed to synthetic residual water under laboratory conditions. The electrochemical techniques used to asses the electrochemical behavior were linear polarization resistance (LPR), cyclic polarization curves (CPC) and electrochemical noise (ECN) techniques to determine corrosion rates, the susceptibility to localized corrosion and the most likely corrosion mechanism, respectively. In order to ascertain the amount of aerobic and anaerobic bacteria present on the steel surface, the Most Probable Number method (MPN) was employed. On the whole, the steels studied showed a better corrosion resistance in the following order: 800 &gt; 304 &gt; 1018. Also, the experimental results indicated that none of the steels demonstrated susceptibility to localized corrosion.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Key Words:</b> Polarization Resistance, Cyclic Polarization, Electrochemical Noise, Steels, Synthetic Wastewater.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Debido a que los problemas de corrosi&oacute;n que afectan la industria de tratamiento de aguas residuales son variados y escasamente estudiados, se presenta un estudio del comportamiento de corrosi&oacute;n de los aceros AISI&#45;1018, AISI&#45;304 y AISI&#45;800 expuestos en agua residual sint&eacute;tica para conocer su comportamiento bajo condiciones de laboratorio.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Las t&eacute;cnicas electroqu&iacute;micas empleadas para determinar el comportamiento de la corrosi&oacute;n fueron resistencia a la polarizaci&oacute;n lineal (RPL), curvas de polarizaci&oacute;n c&iacute;clica (CPC) y ruido electroqu&iacute;mico (REQ), para determinar velocidades de corrosi&oacute;n, susceptibilidad a corrosi&oacute;n localizada y el mecanismo m&aacute;s probable de corrosi&oacute;n, respectivamente. El m&eacute;todo de n&uacute;mero m&aacute;s probable (NMP) fue empleado para contar los microorganismos presentes en la superficie de los aceros. En general, los aceros estudiados presentaron una mejor resistencia a la corrosi&oacute;n en el orden siguiente: 800&gt;304&gt;1018. Tambi&eacute;n, se determin&oacute; que los aceros no fueron susceptibles a la corrosi&oacute;n localizada durante el proceso de experimentaci&oacute;n.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> Resistencia a la Polarizaci&oacute;n, Polarizaci&oacute;n C&iacute;clica, Ruido Electroqu&iacute;mico, Aceros, Agua Residual Sint&eacute;tica.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/jmcs/v50n1/v50n1a4.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Acknowledgements</b></font></p>  	    <p align="justify"><font face="verdana" size="2">The authors thank CONACYT, Mexico (Proyecto 35378&#45;U) for financial support to carry out this investigation, and Prof. Joan Genesca (FCQ, UNAM) for fruitful discussions.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">1.&nbsp;Porter, P.C.; Quick, E. <i>Mater. 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<ref-list>
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