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class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Lloc"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Somari" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Somari</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mòu a la barra laterala</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">Escondre</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Començament</div> </a> </li> <li id="toc-Apròcha_de_la_corrosion_dels_metals" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Apròcha_de_la_corrosion_dels_metals"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Apròcha de la corrosion dels metals</span> </div> </a> <ul id="toc-Apròcha_de_la_corrosion_dels_metals-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Oxidareccion_de_la_corrosion" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Oxidareccion_de_la_corrosion"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Oxidareccion de la corrosion</span> </div> </a> <ul id="toc-Oxidareccion_de_la_corrosion-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tipes_de_corrosion" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tipes_de_corrosion"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Tipes de corrosion</span> </div> </a> <button aria-controls="toc-Tipes_de_corrosion-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Commuta la subsecció Tipes de corrosion</span> </button> <ul id="toc-Tipes_de_corrosion-sublist" class="vector-toc-list"> <li id="toc-Corrosion_generalizada" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Corrosion_generalizada"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Corrosion generalizada</span> </div> </a> <ul id="toc-Corrosion_generalizada-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Corrosion_per_fissadas_(pitting_corrosion)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Corrosion_per_fissadas_(pitting_corrosion)"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Corrosion per fissadas (pitting corrosion)</span> </div> </a> <ul id="toc-Corrosion_per_fissadas_(pitting_corrosion)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Stress_Corrosion_Cracking_(SCC)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Stress_Corrosion_Cracking_(SCC)"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Stress Corrosion Cracking (SCC)</span> </div> </a> <ul id="toc-Stress_Corrosion_Cracking_(SCC)-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Deteccion_de_la_corrosion" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Deteccion_de_la_corrosion"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Deteccion de la corrosion</span> </div> </a> <ul id="toc-Deteccion_de_la_corrosion-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Vejatz_tanben" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Vejatz_tanben"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Vejatz tanben</span> </div> </a> <ul id="toc-Vejatz_tanben-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Somari" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Commuta la taula de continguts." > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Commuta la taula de continguts.</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Corrosion</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vés a un article en una altra llengua. Disponible en 79 llengües" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-79" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">79 lengas</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Korrosie" title="Korrosie - afrikaans" lang="af" hreflang="af" data-title="Korrosie" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Korrosion" title="Korrosion - aleman de Soïssa" lang="gsw" hreflang="gsw" data-title="Korrosion" data-language-autonym="Alemannisch" data-language-local-name="aleman de Soïssa" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D8%A2%D9%83%D9%84" title="تآكل - arabi" lang="ar" hreflang="ar" data-title="تآكل" data-language-autonym="العربية" data-language-local-name="arabi" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Escomiu" title="Escomiu - asturian" lang="ast" hreflang="ast" data-title="Escomiu" data-language-autonym="Asturianu" data-language-local-name="asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Korroziya" title="Korroziya - azerbaijani" lang="az" hreflang="az" data-title="Korroziya" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%DB%8C%D8%A6%DB%8C%DB%8C%D9%84%D9%85%D9%87" title="یئییلمه - South Azerbaijani" lang="azb" hreflang="azb" data-title="یئییلمه" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D0%BE%D0%B7%D1%96%D1%8F" title="Карозія - belarús" lang="be" hreflang="be" data-title="Карозія" data-language-autonym="Беларуская" data-language-local-name="belarús" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9A%D0%BE%D1%80%D0%BE%D0%B7%D0%B8%D1%8F" title="Корозия - bulgar" lang="bg" hreflang="bg" data-title="Корозия" data-language-autonym="Български" data-language-local-name="bulgar" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Korozija" title="Korozija - bosniac" lang="bs" hreflang="bs" data-title="Korozija" data-language-autonym="Bosanski" data-language-local-name="bosniac" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Corrosi%C3%B3" title="Corrosió - catalan" lang="ca" hreflang="ca" data-title="Corrosió" data-language-autonym="Català" data-language-local-name="catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/S%C4%83ng-c%C4%ADng" title="Săng-cĭng - Mindong" lang="cdo" hreflang="cdo" data-title="Săng-cĭng" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%AF%D8%A7%D8%AE%D9%88%D8%B1%D8%A7%D9%86" title="داخوران - kurd central" lang="ckb" hreflang="ckb" data-title="داخوران" data-language-autonym="کوردی" data-language-local-name="kurd central" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Koroze" title="Koroze - chèc" lang="cs" hreflang="cs" data-title="Koroze" data-language-autonym="Čeština" data-language-local-name="chèc" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Cyrydu" title="Cyrydu - gal·lès" lang="cy" hreflang="cy" data-title="Cyrydu" data-language-autonym="Cymraeg" data-language-local-name="gal·lès" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Korrosion" title="Korrosion - danés" lang="da" hreflang="da" data-title="Korrosion" data-language-autonym="Dansk" data-language-local-name="danés" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Korrosion" title="Korrosion - alemand" lang="de" hreflang="de" data-title="Korrosion" data-language-autonym="Deutsch" data-language-local-name="alemand" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%94%CE%B9%CE%AC%CE%B2%CF%81%CF%89%CF%83%CE%B7" title="Διάβρωση - grèc" lang="el" hreflang="el" data-title="Διάβρωση" data-language-autonym="Ελληνικά" data-language-local-name="grèc" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Corrosion" title="Corrosion - anglés" lang="en" hreflang="en" data-title="Corrosion" data-language-autonym="English" data-language-local-name="anglés" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Korodo" title="Korodo - esperanto" lang="eo" hreflang="eo" data-title="Korodo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Corrosi%C3%B3n" title="Corrosión - espanhòl" lang="es" hreflang="es" data-title="Corrosión" data-language-autonym="Español" data-language-local-name="espanhòl" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Korrosioon" title="Korrosioon - estonian" lang="et" hreflang="et" data-title="Korrosioon" data-language-autonym="Eesti" data-language-local-name="estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Korrosio" title="Korrosio - basc" lang="eu" hreflang="eu" data-title="Korrosio" data-language-autonym="Euskara" data-language-local-name="basc" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AE%D9%88%D8%B1%D8%AF%DA%AF%DB%8C" title="خوردگی - perse" lang="fa" hreflang="fa" data-title="خوردگی" data-language-autonym="فارسی" data-language-local-name="perse" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Korroosio" title="Korroosio - finlandés" lang="fi" hreflang="fi" data-title="Korroosio" data-language-autonym="Suomi" data-language-local-name="finlandés" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Corrosion" title="Corrosion - francés" lang="fr" hreflang="fr" data-title="Corrosion" data-language-autonym="Français" data-language-local-name="francés" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Korroazje" title="Korroazje - frisó occidental" lang="fy" hreflang="fy" data-title="Korroazje" data-language-autonym="Frysk" data-language-local-name="frisó occidental" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Creimeadh" title="Creimeadh - irlandés" lang="ga" hreflang="ga" data-title="Creimeadh" data-language-autonym="Gaeilge" data-language-local-name="irlandés" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Corrosi%C3%B3n" title="Corrosión - galician" lang="gl" hreflang="gl" data-title="Corrosión" data-language-autonym="Galego" data-language-local-name="galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A7%D7%95%D7%A8%D7%95%D7%96%D7%99%D7%94" title="קורוזיה - ebrèu" lang="he" hreflang="he" data-title="קורוזיה" data-language-autonym="עברית" data-language-local-name="ebrèu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B8%E0%A4%82%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%BE%E0%A4%B0%E0%A4%A3" title="संक्षारण - Indi" lang="hi" hreflang="hi" data-title="संक्षारण" data-language-autonym="हिन्दी" data-language-local-name="Indi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Korozija" title="Korozija - croat" lang="hr" hreflang="hr" data-title="Korozija" data-language-autonym="Hrvatski" data-language-local-name="croat" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Korr%C3%B3zi%C3%B3" title="Korrózió - ongrés" lang="hu" hreflang="hu" data-title="Korrózió" data-language-autonym="Magyar" data-language-local-name="ongrés" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%BF%D5%B8%D5%BC%D5%B8%D5%A6%D5%AB%D5%A1" title="Կոռոզիա - armèni" lang="hy" hreflang="hy" data-title="Կոռոզիա" data-language-autonym="Հայերեն" data-language-local-name="armèni" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Korosi" title="Korosi - indonesian" lang="id" hreflang="id" data-title="Korosi" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Korodo" title="Korodo - ido" lang="io" hreflang="io" data-title="Korodo" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/T%C3%A6ring" title="Tæring - islandés" lang="is" hreflang="is" data-title="Tæring" data-language-autonym="Íslenska" data-language-local-name="islandés" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Corrosione" title="Corrosione - italian" lang="it" hreflang="it" data-title="Corrosione" data-language-autonym="Italiano" data-language-local-name="italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E8%85%90%E9%A3%9F" title="腐食 - japonés" lang="ja" hreflang="ja" data-title="腐食" data-language-autonym="日本語" data-language-local-name="japonés" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Korosi" title="Korosi - javanés" lang="jv" hreflang="jv" data-title="Korosi" data-language-autonym="Jawa" data-language-local-name="javanés" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%99%E1%83%9D%E1%83%A0%E1%83%9D%E1%83%96%E1%83%98%E1%83%90" title="კოროზია - georgian" lang="ka" hreflang="ka" data-title="კოროზია" data-language-autonym="ქართული" data-language-local-name="georgian" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%96%D0%B5%D0%B3%D1%96%D0%B4%D0%B5" title="Жегіде - cazac" lang="kk" hreflang="kk" data-title="Жегіде" data-language-autonym="Қазақша" data-language-local-name="cazac" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B6%80%EC%8B%9D" title="부식 - corean" lang="ko" hreflang="ko" data-title="부식" data-language-autonym="한국어" data-language-local-name="corean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Korozyon" title="Korozyon - curd" lang="ku" hreflang="ku" data-title="Korozyon" data-language-autonym="Kurdî" data-language-local-name="curd" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9A%D0%BE%D1%80%D1%80%D0%BE%D0%B7%D0%B8%D1%8F" title="Коррозия - kirguís" lang="ky" hreflang="ky" data-title="Коррозия" data-language-autonym="Кыргызча" data-language-local-name="kirguís" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Korozija" title="Korozija - lituan" lang="lt" hreflang="lt" data-title="Korozija" data-language-autonym="Lietuvių" data-language-local-name="lituan" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Korozija" title="Korozija - leton" lang="lv" hreflang="lv" data-title="Korozija" data-language-autonym="Latviešu" data-language-local-name="leton" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9A%D0%BE%D1%80%D0%BE%D0%B7%D0%B8%D1%98%D0%B0" title="Корозија - macedonian" lang="mk" hreflang="mk" data-title="Корозија" data-language-autonym="Македонски" data-language-local-name="macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B2%E0%B5%8B%E0%B4%B9%E0%B4%A8%E0%B4%BE%E0%B4%B6%E0%B4%A8%E0%B4%82" title="ലോഹനാശനം - malaiàlam" lang="ml" hreflang="ml" data-title="ലോഹനാശനം" data-language-autonym="മലയാളം" data-language-local-name="malaiàlam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%97%D1%8D%D0%B2%D1%80%D1%8D%D0%BB%D1%82" title="Зэврэлт - mongòl" lang="mn" hreflang="mn" data-title="Зэврэлт" data-language-autonym="Монгол" data-language-local-name="mongòl" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Pengakisan" title="Pengakisan - malai" lang="ms" hreflang="ms" data-title="Pengakisan" data-language-autonym="Bahasa Melayu" data-language-local-name="malai" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-myv mw-list-item"><a href="https://myv.wikipedia.org/wiki/%D0%A7%D0%B5%D0%BC%D0%B5%D0%BD%D1%8C_(%D0%BA%D1%88%D0%BD%D0%B8%D0%BF%D0%BE%D0%BD%D0%B0%D1%82)" title="Чемень (кшнипонат) - mordovià erza" lang="myv" hreflang="myv" data-title="Чемень (кшнипонат)" data-language-autonym="Эрзянь" data-language-local-name="mordovià erza" class="interlanguage-link-target"><span>Эрзянь</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Corrosie" title="Corrosie - neerlandés" lang="nl" hreflang="nl" data-title="Corrosie" data-language-autonym="Nederlands" data-language-local-name="neerlandés" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Korrosjon" title="Korrosjon - norvegian nynorsk" lang="nn" hreflang="nn" data-title="Korrosjon" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegian nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Korrosjon" title="Korrosjon - norvegian bokmål" lang="nb" hreflang="nb" data-title="Korrosjon" data-language-autonym="Norsk bokmål" data-language-local-name="norvegian bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%9C%E0%A8%BC%E0%A9%B0%E0%A8%97" title="ਜ਼ੰਗ - punjabi" lang="pa" hreflang="pa" data-title="ਜ਼ੰਗ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Korozja" title="Korozja - polonés" lang="pl" hreflang="pl" data-title="Korozja" data-language-autonym="Polski" data-language-local-name="polonés" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Corros%C3%A3o" title="Corrosão - portugués" lang="pt" hreflang="pt" data-title="Corrosão" data-language-autonym="Português" data-language-local-name="portugués" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Coroziune" title="Coroziune - romanés" lang="ro" hreflang="ro" data-title="Coroziune" data-language-autonym="Română" data-language-local-name="romanés" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9A%D0%BE%D1%80%D1%80%D0%BE%D0%B7%D0%B8%D1%8F" title="Коррозия - rus" lang="ru" hreflang="ru" data-title="Коррозия" data-language-autonym="Русский" data-language-local-name="rus" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Korozija" title="Korozija - serbocroat" lang="sh" hreflang="sh" data-title="Korozija" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbocroat" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Corrosion" title="Corrosion - Simple English" lang="en-simple" hreflang="en-simple" data-title="Corrosion" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Kor%C3%B3zia" title="Korózia - eslovac" lang="sk" hreflang="sk" data-title="Korózia" data-language-autonym="Slovenčina" data-language-local-name="eslovac" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Korozija" title="Korozija - eslovèn" lang="sl" hreflang="sl" data-title="Korozija" data-language-autonym="Slovenščina" data-language-local-name="eslovèn" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Kun%27ura" title="Kun'ura - shona" lang="sn" hreflang="sn" data-title="Kun'ura" data-language-autonym="ChiShona" data-language-local-name="shona" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Korrozioni" title="Korrozioni - albanés" lang="sq" hreflang="sq" data-title="Korrozioni" data-language-autonym="Shqip" data-language-local-name="albanés" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Korozija" title="Korozija - serbi" lang="sr" hreflang="sr" data-title="Korozija" data-language-autonym="Српски / srpski" data-language-local-name="serbi" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Korosi" title="Korosi - sondanès" lang="su" hreflang="su" data-title="Korosi" data-language-autonym="Sunda" data-language-local-name="sondanès" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Korrosion" title="Korrosion - suedés" lang="sv" hreflang="sv" data-title="Korrosion" data-language-autonym="Svenska" data-language-local-name="suedés" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%85%E0%AE%B0%E0%AE%BF%E0%AE%AE%E0%AE%BE%E0%AE%A9%E0%AE%AE%E0%AF%8D" title="அரிமானம் - tamol" lang="ta" hreflang="ta" data-title="அரிமானம்" data-language-autonym="தமிழ்" data-language-local-name="tamol" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%81%E0%B8%B1%E0%B8%94%E0%B8%81%E0%B8%A3%E0%B9%88%E0%B8%AD%E0%B8%99" title="การกัดกร่อน - tai" lang="th" hreflang="th" data-title="การกัดกร่อน" data-language-autonym="ไทย" data-language-local-name="tai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Korozyon" title="Korozyon - turc" lang="tr" hreflang="tr" data-title="Korozyon" data-language-autonym="Türkçe" data-language-local-name="turc" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9A%D0%BE%D1%80%D0%BE%D0%B7%D1%96%D1%8F" title="Корозія - ucrainés" lang="uk" hreflang="uk" data-title="Корозія" data-language-autonym="Українська" data-language-local-name="ucrainés" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Korroziya" title="Korroziya - ozbèc" lang="uz" hreflang="uz" data-title="Korroziya" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="ozbèc" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%82n_m%C3%B2n" title="Ăn mòn - vietnamian" lang="vi" hreflang="vi" data-title="Ăn mòn" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamian" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E8%85%90%E8%9A%80" title="腐蚀 - xinès wu" lang="wuu" hreflang="wuu" data-title="腐蚀" data-language-autonym="吴语" data-language-local-name="xinès wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-za mw-list-item"><a href="https://za.wikipedia.org/wiki/Myaex" title="Myaex - zhuang" lang="za" hreflang="za" data-title="Myaex" data-language-autonym="Vahcuengh" data-language-local-name="zhuang" class="interlanguage-link-target"><span>Vahcuengh</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E8%85%90%E8%9A%80" title="腐蚀 - chinés" lang="zh" hreflang="zh" data-title="腐蚀" data-language-autonym="中文" data-language-local-name="chinés" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Se%E2%81%BF-sian" title="Seⁿ-sian - xinès min del sud" lang="nan" hreflang="nan" data-title="Seⁿ-sian" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="xinès min del sud" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E8%85%90%E8%9D%95" title="腐蝕 - cantonés" lang="yue" hreflang="yue" data-title="腐蝕" data-language-autonym="粵語" data-language-local-name="cantonés" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q137056#sitelinks-wikipedia" title="Modificar los ligams interlenga" class="wbc-editpage">Modificar los ligams</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Espacis de noms"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Corrosion" title="Veire l’article [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Discutir:Corrosion&action=edit&redlink=1" rel="discussion" class="new" title="Discussion a prepaus d'aquesta pagina (la pagina existís pas) [t]" accesskey="t"><span>Discussion</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Canvia la variant de llengua" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">occitan</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Afichatges"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Corrosion"><span>Legir</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Corrosion&veaction=edit" title="Modificar aquela pagina [v]" accesskey="v"><span>Modificar</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Corrosion&action=edit" title="Modificar lo còdi font d'aquela pagina [e]" accesskey="e"><span>Modificar lo còdi</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Corrosion&action=history" title="Los autors e versions precedentas d'aquesta pagina. 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class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="oc" dir="ltr"><p>La <b>corrosion</b> es l'alteracion que provòca l'<a href="/wiki/Atmosf%C3%A8ra" class="mw-disambig" title="Atmosfèra">atmosfèra</a> sus un objècte manufacturat, levats totes los efèctes puramant mecanics (coma los damatges causats par la friccion e la rompadura per impactes). Los exemples mai coneguts son las alteracions <a href="/wiki/Quimia" title="Quimia">quimicas</a> dels <a href="/wiki/Metal" title="Metal">metals</a> a causa de l'<a href="/wiki/Aire" title="Aire">aire</a>, coma la formacion d'<a href="/wiki/Oxid_de_f%C3%A8rre" title="Oxid de fèrre">oxid de fèrre</a> sus l'<a href="/wiki/Aci%C3%A8r" title="Acièr">acièr</a> o la patina verda sul <a href="/wiki/Coire" title="Coire">coire</a> e los seus <a href="/wiki/Aliatge" title="Aliatge">aliatges</a> (coma, per exemple, lo <a href="/wiki/Laton" title="Laton">laton</a>). </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fichi%C3%A8r:Rust_and_dirt.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Rust_and_dirt.jpg/220px-Rust_and_dirt.jpg" decoding="async" width="220" height="174" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Rust_and_dirt.jpg/330px-Rust_and_dirt.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Rust_and_dirt.jpg/440px-Rust_and_dirt.jpg 2x" data-file-width="1904" data-file-height="1504" /></a><figcaption>Corrosion observada en una placa metallica</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fichi%C3%A8r:Dangclass8.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Dangclass8.png/220px-Dangclass8.png" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Dangclass8.png/330px-Dangclass8.png 1.5x, //upload.wikimedia.org/wikipedia/commons/6/6e/Dangclass8.png 2x" data-file-width="432" data-file-height="432" /></a><figcaption>Simbòl de dangièr per de substàncias corrosivas</figcaption></figure> <p>Malgrat tot, la corrosion es un fenomèn fòça mai corrent que tòca totes los materials (metals, <a href="/wiki/Ceramica" title="Ceramica">ceramicas</a>, <a href="/wiki/Polim%C3%A8r" title="Polimèr">polimèrs</a>...) e totes los mitans (<a href="/wiki/Aiga" title="Aiga">aquoses</a>, <a href="/wiki/Atmosf%C3%A8ra_(T%C3%A8rra)" class="mw-redirect" title="Atmosfèra (Tèrra)">atmosfèra</a>, nauta <a href="/wiki/Temperatura" title="Temperatura">temperatura</a>...). </p><p>La corrosion es un problèma industrial important, perque pòt causar d'accidents (fagilizacion de las pèças) e, mai, representa un còst important, perque s'estima que cada segonda se dissòlvan cinc <a href="/w/index.php?title=Tona_(unitat)&action=edit&redlink=1" class="new" title="Tona (unitat) (la pagina existís pas)">tonas</a> d'acièr pel mond. Qualques pichons <a href="/w/index.php?title=Nanom%C3%A8tre&action=edit&redlink=1" class="new" title="Nanomètre (la pagina existís pas)">nanomètres</a> o <a href="/wiki/Picom%C3%A8tre" class="mw-redirect" title="Picomètre">picomètres</a> invisibles sus cada pèça, multiplicats per la quantitat d'acièr existent pel mond, son vertadièrament una pèrda importanta de material </p><p>La corrosion es un camp de las sciéncias de materials que demanda de coneissença de quimia e de <a href="/wiki/Fisica" title="Fisica">fisica</a> (<a href="/w/index.php?title=Fisicoquimica&action=edit&redlink=1" class="new" title="Fisicoquimica (la pagina existís pas)">fisicoquimica</a>) </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Apròcha_de_la_corrosion_dels_metals"><span id="Apr.C3.B2cha_de_la_corrosion_dels_metals"></span>Apròcha de la corrosion dels metals</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Corrosion&veaction=edit&section=1" title="Modificar la seccion : Apròcha de la corrosion dels metals" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Corrosion&action=edit&section=1" title="Edita el codi de la secció: Apròcha de la corrosion dels metals"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La corrosion dels metals es un fenomèn de caire natural. En efècte, malgrat de rares excepcions (l'<a href="/wiki/Aur" title="Aur">aur</a>, lo <a href="/wiki/F%C3%A8rre" title="Fèrre">fèrre</a> d'origina <a href="/w/index.php?title=Meteora_(astronomia)&action=edit&redlink=1" class="new" title="Meteora (astronomia) (la pagina existís pas)">meteoritica</a>...) los metals son presents sus la <a href="/wiki/T%C3%A8rra" title="Tèrra">Tèrra</a> en forma d'<a href="/wiki/Oxid" title="Oxid">oxid</a>, dins los <a href="/w/index.php?title=Minerals&action=edit&redlink=1" class="new" title="Minerals (la pagina existís pas)">minerals</a> (coma la <a href="/wiki/Baucita" title="Baucita">baucita</a> s'es <a href="/wiki/Alumini" title="Alumini">alumini</a>, l'<a href="/wiki/Ematita" title="Ematita">ematita</a> s'es <a href="/wiki/F%C3%A8rre" title="Fèrre">fèrre</a>...). Dempuèi de la preïstòria, tota la <a href="/wiki/Metallurgia" title="Metallurgia">metallurgia</a> constituissiá a reduire los oxids en bases forns, per fabricar lo metal. La corrosion, de fach, es lo retorn del metal al seu estat natural, l'oxid. </p><p>La corrosion es una <a href="/wiki/Reaccion_quimica" title="Reaccion quimica">reaccion quimica</a> (oxidoreduccion) qu'intervenon dos elements: </p> <ul><li>La pèça manufacturada</li> <li>L'ambient</li></ul> <p>Sovent se parla de l'"acièr inoxidable"; lo tèrme es inadequat per doas rasons: </p> <ul><li>Aquel tipe d'acièr conten d'elements d'aliatge (<a href="/wiki/Cr%C3%B2me" title="Cròme">cròme</a>, <a href="/wiki/Niqu%C3%A8l" title="Niquèl">niquèl</a>) que s'oxidan; a aquela capa d'oxid se deu la proteccion de l'acièr</li> <li>Es pas protegit mai que per un tipe d'ambient, e, probablament, s'oxidarán dins d'ambients diferents.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Oxidareccion_de_la_corrosion">Oxidareccion de la corrosion</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Corrosion&veaction=edit&section=2" title="Modificar la seccion : Oxidareccion de la corrosion" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Corrosion&action=edit&section=2" title="Edita el codi de la secció: Oxidareccion de la corrosion"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fichi%C3%A8r:Fe_corrosion.PNG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/01/Fe_corrosion.PNG/220px-Fe_corrosion.PNG" decoding="async" width="220" height="123" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/01/Fe_corrosion.PNG/330px-Fe_corrosion.PNG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/01/Fe_corrosion.PNG/440px-Fe_corrosion.PNG 2x" data-file-width="1045" data-file-height="583" /></a><figcaption>Esquèma de la corrosion del fèrre</figcaption></figure> <p>La corrosion dels metals es un procès electroquimic qu'implica doas semireaccions: </p> <ul><li><a href="/wiki/Oxidacion" title="Oxidacion">Oxidacion</a> M → M<sup>n+</sup>(aq) + ne<sup>-</sup></li> <li><a href="/w/index.php?title=Reduccion&action=edit&redlink=1" class="new" title="Reduccion (la pagina existís pas)">Reduccion</a></li></ul> <ol><li>Ambient acid O<sub>2</sub>+ 4H<sup>+</sup>(aq)+4e<sup>-</sup>→ H<sub>2</sub>O o bé 2H<sup>+</sup>+2e<sup>-</sup>→H<sub>2</sub></li> <li>Ambient basic O<sub>2</sub>+2H<sub>2</sub>O+4e<sup>-</sup>→4OH<sup>-</sup> o ben 2H<sub>2</sub>O+2e<sup>-</sup>→H<sub>2</sub>+2OH<sup>-</sup></li></ol> <p>Ambedoas semireaccions se presentan simultanèament e sont irreversible. Atal, se se vòl empachar la corrosion d'un metal, se pòt agir en inibent la semireaccion d'oxidacion o ben la semireaccion de reduccion. Se dich que l'oxidacion es un procès anodic, alara que la reduccion es un procès catodic; d'aquel biais existisson inibitors anodics e inibitors catodics. </p> <div class="mw-heading mw-heading2"><h2 id="Tipes_de_corrosion">Tipes de corrosion</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Corrosion&veaction=edit&section=3" title="Modificar la seccion : Tipes de corrosion" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Corrosion&action=edit&section=3" title="Edita el codi de la secció: Tipes de corrosion"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Fichi%C3%A8r:Rust_1.jpeg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Rust_1.jpeg/220px-Rust_1.jpeg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Rust_1.jpeg/330px-Rust_1.jpeg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Rust_1.jpeg/440px-Rust_1.jpeg 2x" data-file-width="1908" data-file-height="1272" /></a><figcaption>Teulat oxidat de placa ondada d'acièr.</figcaption></figure> <p>Existisson diferents tipes de corrosion. Los mai comuns son: </p> <div class="mw-heading mw-heading3"><h3 id="Corrosion_generalizada">Corrosion generalizada</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Corrosion&veaction=edit&section=4" title="Modificar la seccion : Corrosion generalizada" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Corrosion&action=edit&section=4" title="Edita el codi de la secció: Corrosion generalizada"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'oxidacion se produtz uniformament en tota o granda partida del metal. Lo metal a pauc a pauc merma fins a res sus tota la superfícia. </p> <div class="mw-heading mw-heading3"><h3 id="Corrosion_per_fissadas_(pitting_corrosion)"><span id="Corrosion_per_fissadas_.28pitting_corrosion.29"></span>Corrosion per fissadas (pitting corrosion)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Corrosion&veaction=edit&section=5" title="Modificar la seccion : Corrosion per fissadas (pitting corrosion)" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Corrosion&action=edit&section=5" title="Edita el codi de la secció: Corrosion per fissadas (pitting corrosion)"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La pèça se manten sens atacar a un nivèl macroscopic, mas sus qualques punts locals se produís la corrosion. Lentament evolua, las fissadas venon visibles e amb lo temps arriban a perforar lo metal. La produccion de fissadas son d'en prmièr ligat amb la preséncia d'ions clorur e se presenta entre d'autres, sus qualques acièrs <i>inoxidables</i> en mitans marins. </p> <div class="mw-heading mw-heading3"><h3 id="Stress_Corrosion_Cracking_(SCC)"><span id="Stress_Corrosion_Cracking_.28SCC.29"></span>Stress Corrosion Cracking (SCC)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Corrosion&veaction=edit&section=6" title="Modificar la seccion : Stress Corrosion Cracking (SCC)" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Corrosion&action=edit&section=6" title="Edita el codi de la secció: Stress Corrosion Cracking (SCC)"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La combinason d'un agent quimic e de tensions provòcan una corrosion que produch cretas qu'acaban per fragilizar lo metal. Cal l'accion combinada de l'agent quimic e de las tensions per tal que se produsís. Se presenta per exemple pels aliatges especials de <a href="/wiki/Niqu%C3%A8l" title="Niquèl">niquèl</a>, <a href="/wiki/Cr%C3%B2me" title="Cròme">cròme</a> e <a href="/wiki/F%C3%A8rre" title="Fèrre">fèrre</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Deteccion_de_la_corrosion">Deteccion de la corrosion</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Corrosion&veaction=edit&section=7" title="Modificar la seccion : Deteccion de la corrosion" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Corrosion&action=edit&section=7" title="Edita el codi de la secció: Deteccion de la corrosion"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La corrosion dels metals provòca de grands còsts economics derivats de la pintura dels metals, reparacion de material defectuós e, sobretot, pels arestes de produccion per causa d'avarias. Se desvolupèt diversas tecnicas que permeton, amb mai o mens de succès, coneisser lo gra e tipes de corrosion dels canons, reactors, eca., d'una industria: </p> <div class="mw-heading mw-heading2"><h2 id="Vejatz_tanben">Vejatz tanben</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Corrosion&veaction=edit&section=8" title="Modificar la seccion : Vejatz tanben" class="mw-editsection-visualeditor"><span>modificar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Corrosion&action=edit&section=8" title="Edita el codi de la secció: Vejatz tanben"><span>Modificar lo còdi</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="autres-projets boite-grise boite-a-droite noprint js-interprojets"> <p class="títol">Suls autres projèctes Wikimèdia :</p> <ul class="noarchive plainlinks"> <li class="commons"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Corrosion?uselang=oc">Corrosion</a>, sus <span class="project">Wikimedia Commons</span> </li></ul> </div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Recuperada de « <a dir="ltr" href="https://oc.wikipedia.org/w/index.php?title=Corrosion&oldid=2145563">https://oc.wikipedia.org/w/index.php?title=Corrosion&oldid=2145563</a> »</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Especial:Categorias" title="Especial:Categorias">Categorias de la pagina</a> : <ul><li><a href="/wiki/Categoria:Mod%C3%A8l_infobox" title="Categoria:Modèl infobox">Modèl infobox</a></li><li><a href="/w/index.php?title=Categoria:Reaccions_quimicas&action=edit&redlink=1" class="new" title="Categoria:Reaccions quimicas (la pagina existís pas)">Reaccions quimicas</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categorias amagadas : <ul><li><a href="/wiki/Categoria:Categoria_Commons_amb_ligam_local_identic_sus_Wikidata" title="Categoria:Categoria Commons amb ligam local identic sus Wikidata">Categoria Commons amb ligam local identic sus Wikidata</a></li><li><a href="/wiki/Categoria:Article_utilizant_lo_mod%C3%A8l_Commonscat" title="Categoria:Article utilizant lo modèl Commonscat">Article utilizant lo modèl Commonscat</a></li><li><a href="/wiki/Categoria:Pagina_utilizant_Commonscat_sens_afichatge_personalizat" title="Categoria:Pagina utilizant Commonscat sens afichatge personalizat">Pagina utilizant Commonscat sens afichatge personalizat</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Aquela pagina es estada modificada pel darrièr còp lo 17 octobre de 2019 a 04.00.</li> <li id="footer-info-copyright"><span style="white-space: normal"><a href="/wiki/Wikip%C3%A8dia:Drech_d%27autor" title="Wikipèdia:Drech d'autor">Drech d'autor</a> : Los tèxtes son disponibles jos <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/deed.fr">licéncia Creative Commons paternitat pertatge a l’identic</a> ; d’autras condicions se pòdon aplicar. 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