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<font size="2">The Website of Corrosion <span lang="it">Protection </span>and Corrosion Control</font></font></td> </tr> </table> <table width="100%" border="0" cellpadding="0" cellspacing="0" class="HeaderTable"> <tr> <td width="100%" height="1" bgcolor="#000080"><hr class="HeaderLine" size="1" noshade></td> </tr> </table> <table width="100%" border="0" cellpadding="10" cellspacing="0" class="HeaderTable"> <tr> <td class="style24" bgcolor="#FFFFFF"> <b><font color="#000000" size="2">You are here &gt;&gt;&gt; </font><font size="2"> <a href="index.htm"> <span lang="it" class="style25"> Home</span></a></font><font color="#000000" size="2"> - </font></b><span lang="it"><span class="style10">Corrosion Prevention</span></span></td> <td class="Fields" bgcolor="#FFFFFF">&nbsp; </td> </tr> </table> <table width="100%" border="0" cellpadding="0" cellspacing="10"> <tr> <td class="style12" width="79%"> <table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse;width:639pt" width="852"> <colgroup> <col style="mso-width-source:userset;mso-width-alt:31158;width:639pt" width="852" /> <col style="mso-width-source:userset;mso-width-alt:31158;width:639pt" width="852" /> </colgroup> <tr> <td class="style32" style="text-underline-style: single;"> <!-- AddThis Button BEGIN --> <script type="text/javascript">var addthis_pub="vittorio6";</script> <a href="http://www.addthis.com/bookmark.php?v=20" onMouseOver="return addthis_open(this, '', '[URL]', '[TITLE]')" onMouseOut="addthis_close()" onClick="return addthis_sendto()"><img src="http://s7.addthis.com/static/btn/lg-share-en.gif" width="125" height="16" alt="Bookmark and Share" style="border:0"/></a><script type="text/javascript" src="http://s7.addthis.com/js/200/addthis_widget.js"></script><!-- AddThis Button END --> &nbsp;</td> <td class="style27" style="text-underline-style: single;" width="852"> <span class="style26" lang="it"><h1 class="style28">Corrosion Prevention</h1> </span></td> </tr> <tr height="17"> <td class="style16" height="17" style="text-underline-style: single;">&nbsp; </td> <td class="style30" height="17" style="text-underline-style: single;" width="852"> <script type="text/javascript"><!-- google_ad_client = "pub-6464343554360654"; /* 728x90, creato 20/12/08 */ google_ad_slot = "7773516113"; google_ad_width = 728; google_ad_height = 90; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script>&nbsp;</td> </tr> <tr> <td class="style32" style="text-underline-style: single;"> </td> <td class="style35" style="text-underline-style: single;" width="852"> <span lang="it"> This is an introduction to Corrosion Prevention. You can find useful documents, tutorials in <a href="http://www.corrosionist.com/corrosion_prevention_control_library.htm"> Corrosion Prevention Library</a></span></td> </tr> <tr height="17"> <td class="style16" height="17" style="text-underline-style: single;">&nbsp; </td> <td class="style20" height="17" style="text-underline-style: single;" width="852"> <b>Design considerations and practices <span lang="it">for Corrosion Prevention</span></b><br /> <br /> 1. The interrelation of various materials within a materi<span lang="it">a</span>l system that can influence the corrosion process <br /> <br /> 2. The configuration of the materi<span lang="it">a</span>l system as it affects the<span lang="it"> </span>presence and conditions of a corrodent <br /> <br /> 3. The functioning of the operating system as it influences the generation and distribution of stress, erosion, and wear <br /> <br /> 4. Active corrosion prevention systems that can only be incorporated into the system design.</td> </tr> <tr height="17"> <td class="style17" height="17" style="text-underline-style: single;"> <span lang="it">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>&nbsp;</td> <td class="style8" height="17" style="text-underline-style: single;" width="852"> <b>MATERIAL COMPATIBILITY CONSIDERATIONS</b> <span lang="it" class="style15">FOR CORROSION PREVENTION</span><br /> <br /> First, a designer must examine the array of materials that comprise a complex item<span lang="it">. Next the designer assesses the potential for interaction considering the external environments of transportation, storage, and use together with the internal environments of working fluids, consumable materials, and residual products. The characteristics that influence material compatibility are<br /> <br /> 1.The component metals and other materials of construction and the <a href="http://www.corrosionist.com/Galvanic_Corrosion.htm">galvanic relationships</a> they may establish <br /> <br /> 2. The relative size of <a href="http://www.corrosionist.com/why_is_Corrosion_electrochemical_process.htm">anode to cathode</a> in corroding couples <br /> <br /> 3. The geometric relationship of and the dimensions defining dissimilar materials <br /> <br /> 4. The degree and extent of exposure to <a href="http://www.corrosionist.com/isocorrosion_curves.htm">corrosive environments </a> <br /> <br /> 5. The electrical and electrochemical properties of the environment and corroding couples <br /> <br /> 6. The thermal properties and <a href="http://www.corrosionist.com/effect_temperature_corrosion_chemistry.htm">temperature</a> variations <br /> <br /> 7. The fluid flow characteristics <br /> <br /> 8. The chemical compositions of <a href="http://www.corrosionist.com/isocorrosion_curves.htm">aggressive agents</a> in solvent waters and other media <br /> <br /> 9. The sources and conductive paths of stray direct currents <br /> <br /> 10. The development of corrosive reactant products <br /> <br /> 11. The impact of the effect on performance<br /> <br /> 12. The criticality of possible failures.</span></td> </tr> <tr height="17"> <td class="style18" height="17" style="text-underline-style: single;">&nbsp; </td> <td class="style1" height="17" style="text-underline-style: single;" width="852"> <span class="style11" lang="it">source &quot;MATERIAL DETERIORATION PREVENTION AND CONTROL GUIDE FOR ARMY MATERIALS, PART ONE, METALS&quot; Mil-HDBK-735</span></td> </tr> <tr height="17"> <td class="style19" height="17" style="text-underline-style: single;">&nbsp; </td> <td class="style31" height="17" style="text-underline-style: single;" width="852"> <script type="text/javascript"><!-- google_ad_client = "pub-6464343554360654"; /* 728x90, creato 20/06/08 */ google_ad_slot = "2854994494"; google_ad_width = 728; google_ad_height = 90; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script></td> </tr> <tr height="17"> <td class="style19" height="17" style="text-underline-style: single;">&nbsp;</td> <td class="style31" height="17" style="text-underline-style: single;"><script> var idcomments_acct = 'f13b239a5fbb1aeea80b88ec504a9110'; var idcomments_post_id; var idcomments_post_url; </script> <span id="IDCommentsPostTitle" style="display:none"></span> <script type='text/javascript' src='http://www.intensedebate.com/js/genericCommentWrapperV2.js'></script>&nbsp;</td> </tr> <tr height="17"> <td class="style19" height="17" style="text-underline-style: single;"><!--ONESTAT SCRIPTCODE START--> <!-- // Modification of this code is not allowed and will permanently disable your account! // Account ID : 422417 // Website URL: http://www.corrosionist.com // Copyright (C) 2002-2007 OneStat.com All Rights Reserved --> <div id="OneStatTag"><table border='0' cellpadding='0' cellspacing='0'><tr><td align='center'> <script type="text/javascript"> <!-- function OneStat_Pageview() { var d=document; var sid="422417"; var CONTENTSECTION=""; var osp_URL=d.URL; var osp_Title=d.title; var t=new Date(); var p="http"+(d.URL.indexOf('https:')==0?'s':'')+"://stat.onestat.com/stat.aspx?tagver=2&sid="+sid; p+="&url="+escape(osp_URL); p+="&ti="+escape(osp_Title); p+="&section="+escape(CONTENTSECTION); p+="&rf="+escape(parent==self?document.referrer:top.document.referrer); p+="&tz="+escape(t.getTimezoneOffset()); p+="&ch="+escape(t.getHours()); p+="&js=1"; p+="&ul="+escape(navigator.appName=="Netscape"?navigator.language:navigator.userLanguage); if(typeof(screen)=="object"){ p+="&sr="+screen.width+"x"+screen.height;p+="&cd="+screen.colorDepth; p+="&jo="+(navigator.javaEnabled()?"Yes":"No"); } d.write('<a href="http://www.onestatfree.com/aspx/login.aspx?sid='+sid+'" target=_blank><img id="ONESTAT_TAG" border="0" src="'+p+'" alt="This site tracked by OneStatFree.com. 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