{"id":6593,"date":"2021-01-11T01:05:11","date_gmt":"2021-01-10T22:05:11","guid":{"rendered":"https:\/\/sitecenneti.com\/kimya\/?p=6593"},"modified":"2021-04-26T09:53:04","modified_gmt":"2021-04-26T06:53:04","slug":"6-korozyon","status":"publish","type":"post","link":"https:\/\/sitecenneti.com\/kimya\/ayt-kimya\/kimya-ve-elektrik\/6-korozyon\/","title":{"rendered":"6. Korozyon"},"content":{"rendered":"<div id=\"toc_container\" class=\"toc_transparent no_bullets\"><p class=\"toc_title\">\u0130&ccedil;indekiler<\/p><ul class=\"toc_list\"><li><a href=\"#Korozyonun_Zararlari\">Korozyonun Zararlar\u0131<\/a><\/li><li><a href=\"#Korozyon_Nasil_Gerceklesir\">Korozyon Nas\u0131l Ger\u00e7ekle\u015fir?<\/a><ul><li><a href=\"#Demirin_Fe_Paslanmasi\">Demirin (Fe) Paslanmas\u0131<\/a><\/li><\/ul><\/li><li><a href=\"#Korozyondan_Korunma\">Korozyondan Korunma<\/a><ul><li><a href=\"#Metalleri_Boyama\">Metalleri Boyama<\/a><\/li><li><a href=\"#Galvanizleme\">Galvanizleme<\/a><\/li><li><a href=\"#Pasif_Metallerle_Kaplama\">Pasif Metallerle Kaplama<\/a><\/li><li><a href=\"#Katodik_Koruma\">Katodik Koruma<\/a><\/li><\/ul><\/li><\/ul><\/div>\n\n<ul class=\"wp-block-list\"><li>&#8220;<strong><em>Korozyon<\/em><\/strong>&#8220;, bir metalin istenmeyen bir \u015fekilde ve kendili\u011finden y\u00fckseltgenmesidir.<\/li><li>Korozyon olay\u0131na, &#8220;<em><strong>metallerin paslanmas\u0131<\/strong><\/em>&#8221; da denebilir.<\/li><li>Yanma tepkimeleri, redoks tepkimeleridir.<\/li><li>Metallerin paslanmas\u0131 de bir \u00e7e\u015fit yanma tepkimesidir. Bu y\u00fczden, metallerin paslanmas\u0131, bir \u00e7e\u015fit redoks tepkimesidir.<\/li><li>Paslanma esnas\u0131nda, metaller katyonlara (+ y\u00fckl\u00fc iyonlara) d\u00f6n\u00fc\u015f\u00fcr ve oksit bile\u015fikleri olu\u015ftururlar.<\/li><li>Metallerin paslanmas\u0131, kendili\u011finden ger\u00e7ekle\u015fir. Bu y\u00fczden, paslanma istemli bir redoks tepkimesidir.<\/li><li>Baz\u0131 korozyon olaylar\u0131 \u015funlard\u0131r:<ul><li>Demirin paslanmas\u0131<\/li><li>G\u00fcm\u00fc\u015f\u00fcn kararmas\u0131<\/li><li>Bak\u0131r\u0131n ye\u015fil renge d\u00f6n\u00fc\u015fmesi<\/li><\/ul><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"Korozyonun_Zararlari\">Korozyonun Zararlar\u0131<\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"239\" src=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyon.jpg\" alt=\"Kimya-ve-Elektrik-Korozyon\" class=\"wp-image-6599\" srcset=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyon.jpg 400w, https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyon-300x179.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><figcaption>Korozyon istenmeyen bir olayd\u0131r.<\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Korozyon istenmeyen ve engellenmeye \u00e7al\u0131\u015f\u0131lan bir olayd\u0131r.<\/li><li>Korozyona u\u011frayan metaller, toz haline d\u00f6n\u00fc\u015f\u00fcr ve d\u00f6k\u00fclerek suya veya topra\u011fa kar\u0131\u015f\u0131rlar.<\/li><li>Suya veya topra\u011fa kar\u0131\u015fan metal paslar\u0131n\u0131 buradan ay\u0131rmak \u00e7o\u011fu zaman m\u00fcmk\u00fcn olmamaktad\u0131r.<\/li><li>Korozyon sebebiyle, d\u00fcnyada, her y\u0131l tonlarca metal kaybedilmektedir.<\/li><li>Korozyon sebebiyle, demirden veya di\u011fer metallerden yap\u0131lm\u0131\u015f ara\u00e7 ve aletler zamanla kullan\u0131lamaz hale gelmektedir.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"Korozyon_Nasil_Gerceklesir\">Korozyon Nas\u0131l Ger\u00e7ekle\u015fir?<\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Korozyonun ger\u00e7ekle\u015fmesine sebep olan ba\u015fl\u0131ca fakt\u00f6r sudur veya nemdir.<\/li><li>Ancak saf suda korozyon \u00e7ok yava\u015f ilerler.<\/li><li>Hava ile temas eden suda, CO<sub>2<\/sub> gaz\u0131 \u00e7\u00f6z\u00fcn\u00fcr ve su asidik hale ge\u00e7er.<\/li><li>Asidik \u00f6zellik kazanm\u0131\u015f suda paslanma daha h\u0131zl\u0131 ger\u00e7ekle\u015fir.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span id=\"Demirin_Fe_Paslanmasi\">Demirin (Fe) Paslanmas\u0131<\/span><\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"208\" src=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyon-Demirin-Paslanmasi.jpg\" alt=\"Demirin Paslanmas\u0131\" class=\"wp-image-6604\" srcset=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyon-Demirin-Paslanmasi.jpg 450w, https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyon-Demirin-Paslanmasi-300x139.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><figcaption>Demirin Paslanmas\u0131<\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Demirin paslanmas\u0131 olay\u0131nda; demir metali, hava ve suyla temas ederek y\u00fckseltgenir.<\/li><li>Paslanma olay\u0131nda havadaki oksijen gaz\u0131 indirgenir.<\/li><li>Y\u00fckseltgenme yar\u0131 tepkimesinde, Fe metali y\u00fckseltgenerek oksit bile\u015fi\u011fine d\u00f6n\u00fc\u015f\u00fcr.<\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>A\u015fa\u011f\u0131da, Fe metalinin paslanmas\u0131na ait yar\u0131 tepkimeler verilmi\u015ftir:<ul><li><strong>Katot (\u0130YT): O<sub>2(g)<\/sub> + 4H<sup>+<\/sup> + 4e<sup>&#8211;<\/sup>&nbsp;\u2192 2H<sub>2<\/sub>O<sub>(s)<\/sub><\/strong><\/li><li><strong>Anot (YYT): 2Fe<sub>(s)<\/sub> \u2192 Fe<sup>2+<\/sup> + 4e<sup>&#8211;<\/sup><\/strong><br><br><\/li><\/ul><\/li><li>Bu tepkimeler ile, y\u00fckseltgenen Fe<sup>2+<\/sup> iyonu, havan\u0131n oksijeni ile bir daha y\u00fckseltgenerek Fe<sup>3+<\/sup> iyonuna d\u00f6n\u00fc\u015f\u00fcr.<\/li><li>Fe<sup>3+<\/sup> iyonu ise, oksijen iyonu ile Fe<sub>2<\/sub>O<sub>3<\/sub>.xH<sub>2<\/sub>O<\/li><li>Demirin pas\u0131, Fe<sub>2<\/sub>O<sub>3<\/sub>.xH<sub>2<\/sub>O genel form\u00fcl\u00fc ile g\u00f6sterilir.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"Korozyondan_Korunma\">Korozyondan Korunma<\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Korozyon, metallerin paslanarak kullan\u0131m d\u0131\u015f\u0131 kalmas\u0131na sebep olur.<ul><li>Bu y\u00fczden; hem \u00fclke ekonomisine hem de d\u00fcnyadaki metal kaynaklar\u0131na zarar\u0131 olan bir olayd\u0131r.<\/li><li>Bu y\u00fczden, korozyonun \u00f6nlenmesi, istenen ve \u00f6nemli bir olayd\u0131r.<\/li><\/ul><\/li><\/ul>\n\n\n\n<p>Metallerin, korozyona u\u011framas\u0131n\u0131 engellemenin \u00e7e\u015fitli yollar\u0131 vard\u0131r. Bunlar \u015f\u00f6yle s\u0131ralanabilir:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span id=\"Metalleri_Boyama\">Metalleri Boyama<\/span><\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"350\" height=\"262\" src=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyonun-Onlenmesi-Boyama.jpg\" alt=\"Metallerin Boyanmas\u0131 Korozyonu \u00d6nler\" class=\"wp-image-6607\" srcset=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyonun-Onlenmesi-Boyama.jpg 350w, https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyonun-Onlenmesi-Boyama-300x225.jpg 300w\" sizes=\"auto, (max-width: 350px) 100vw, 350px\" \/><figcaption>Metallerin Boyanmas\u0131 Korozyonu \u00d6nler<\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Metallerin boyanmas\u0131, hem hava ile hem de su ile temas\u0131n\u0131 kesece\u011fi i\u00e7in, metallerin paslanmas\u0131n\u0131 \u00f6nler.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span id=\"Galvanizleme\">Galvanizleme<\/span><\/h3>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Galvanizing Plant for small parts 45000 euro \/ unit\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/ZXvLLIjBMvo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><figcaption>Zn ile Galvanizleme \u0130\u015flemi<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Demir ve \u00e7elik malzemelerin \u00fczerine ince bir \u00e7inko tabakas\u0131 kaplama i\u015flemine&nbsp;<strong>galvanizleme<\/strong>&nbsp;denir.<\/li><li>\u00c7inko metali, demir metaline g\u00f6re daha aktiftir (Daha kolay y\u00fckseltgenir.)<ul><li>Ancak \u00e7inkonun y\u00fckseltgenme \u00fcr\u00fcnleri \u00e7inkoya s\u0131k\u0131ca yap\u0131\u015farak onun daha fazla korozyona u\u011framas\u0131n\u0131 engeller. Yani demir metalinin hava ve su ile temas\u0131n\u0131 engelleyen koruyucu bir tabaka olu\u015fur.<\/li><\/ul><\/li><li>E\u011fer \u00e7inko metal tabakas\u0131 \u00e7izilirse ve alttaki demir tabakas\u0131 a\u00e7\u0131\u011fa \u00e7\u0131karsa bu durumda \u00e7inko metali, demir metaline elektron vererek y\u00fckseltgenir. <ul><li>B\u00f6ylece demir, \u00e7inkonun y\u00fckseltgenmesi sayesinde korozyona kar\u015f\u0131 korunur.<\/li><\/ul><\/li><li>Bu y\u00f6nteme galvanize etme denir.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span id=\"Pasif_Metallerle_Kaplama\">Pasif Metallerle Kaplama<\/span><\/h3>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Bak\u0131ra G\u00fcm\u00fc\u015f kaplama\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/IX5M87IdvdA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><figcaption>Bak\u0131r Metalini G\u00fcm\u00fc\u015f Kaplama \u0130\u015flemi<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Baz\u0131 metaller, korozyona kar\u015f\u0131 dayan\u0131kl\u0131d\u0131r ve paslanmazlar. Bir metalin, korozyona dayan\u0131kl\u0131 ba\u015fka bir metal taraf\u0131ndan kaplanmas\u0131, korozyonu \u00f6nler.<\/li><li>G\u00fcm\u00fc\u015f, alt\u0131n, bak\u0131r, paslanmaz \u00e7elik gibi pasif metaller, kaplamac\u0131l\u0131kta s\u0131k kullan\u0131lan metallerdir.<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"289\" src=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyonun-Onlenmesi-Kaplama-Yontemi.jpg\" alt=\"Pasif Metalle Kaplama\" class=\"wp-image-6615\"\/><figcaption>Pasif Metalle Kaplama<\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Yukar\u0131da, bir metal ka\u015f\u0131\u011f\u0131n g\u00fcm\u00fc\u015f kaplanmas\u0131 i\u00e7in haz\u0131rlanm\u0131\u015f h\u00fccre d\u00fczene\u011fi verilmi\u015ftir:<ul><li>G\u00fcm\u00fc\u015f metal, h\u00fccrenin katotudur<\/li><li>Metal ka\u015f\u0131k h\u00fccrenin anotudur.<\/li><li>H\u00fccrenin elektrolit \u00e7\u00f6zeltisi olarak g\u00fcm\u00fc\u015f tuzu (AgNO<sub>3<\/sub>) \u00e7\u00f6zeltisi kullan\u0131lm\u0131\u015ft\u0131r.<\/li><\/ul><\/li><li>Kaplama h\u00fccresinin;<ul><li>Anot kutbunda: G\u00fcm\u00fc\u015f elektrot y\u00fckseltgenir ve Ag<sup>+<\/sup> iyonuna d\u00f6n\u00fc\u015f\u00fcr.<\/li><li><strong>Ag \u2192 Ag<sup>+<\/sup> + e<sup>&#8211;<\/sup><\/strong><\/li><li>Katot kutbunda: \u00c7\u00f6zeltideki Ag<sup>+<\/sup> iyonlar\u0131 indirgenir ve Ag metali olarak ka\u015f\u0131\u011f\u0131n y\u00fczeyini kaplar.<\/li><li><strong>Ag<sup>+<\/sup> + e<sup>&#8211;<\/sup> \u2192 Ag<\/strong><\/li><\/ul><\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span id=\"Katodik_Koruma\">Katodik Koruma<\/span><\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"209\" src=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyonun-Onlenmesi-Katodik-Koruma.jpg\" alt=\"Katodik Koruma\" class=\"wp-image-6608\" srcset=\"https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyonun-Onlenmesi-Katodik-Koruma.jpg 450w, https:\/\/sitecenneti.com\/kimya\/wp-content\/uploads\/sites\/16\/2021\/01\/Kimya-ve-Elektrik-Korozyonun-Onlenmesi-Katodik-Koruma-300x139.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><figcaption>Metal Borularda Katodik Koruma<\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Paslanmas\u0131n\u0131 istemedi\u011fimiz bir metale, daha aktif bir metal ba\u011flarsak, paslanmas\u0131n\u0131n \u00f6n\u00fcne ge\u00e7mi\u015f oluruz.<ul><li>\u00c7\u00fcnk\u00fc, paslanmada, aktif metalin \u00f6nceli\u011fi vard\u0131r.<\/li><li>\u00c7\u00fcnk\u00fc; elektron verme e\u011filimi daha y\u00fcksek olan metal \u00f6nce y\u00fckseltgenir.<\/li><\/ul><\/li><li>Bir metali korumak i\u00e7in, o metale ba\u011flana daha aktif metale, &#8220;<em><strong>kurban elektrot<\/strong><\/em>&#8221; denir.<ul><li>Kurban elektrot olarak g\u00f6rev yapan metal anot g\u00f6revi yapar ve di\u011fer metalin paslanmas\u0131n\u0131n \u00f6n\u00fcne ge\u00e7er.<\/li><li>Paslanmas\u0131n\u0131 engelledi\u011fimiz metal de <em>katot<\/em> g\u00f6revi yapar. Bu y\u00fczden bu y\u00f6ntem, &#8220;<strong><em>katodik koruma<\/em><\/strong>&#8221; ad\u0131n\u0131 al\u0131r.<\/li><\/ul><\/li><\/ul>\n\n\n\n<p>Katodik koruma y\u00f6nteminin baz\u0131 uygulamalar\u0131 \u015funlard\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Boru hatlar\u0131ndaki metal borular\u0131n korozyonunu \u00f6nleme<\/li><li>Gemilerin g\u00f6vdelerinin korozyonunu \u00f6nleme<\/li><li>Metal tanklar\u0131n, havuzlar\u0131n korozyonunu \u00f6nleme<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Korozyon&#8221; dersi, bir AYT Kimya konusu olan &#8220;Kimya ve Elektrik&#8221; \u00fcnitesinin son b\u00f6l\u00fcm\u00fcd\u00fcr. Bu derste, &#8220;Korozyon&#8221; konusu, basit ve anla\u015f\u0131l\u0131r bir dille a\u00e7\u0131klanm\u0131\u015ft\u0131r.<\/p>\n","protected":false},"author":1,"featured_media":6093,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[174],"tags":[181],"class_list":["post-6593","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kimya-ve-elektrik","tag-korozyon"],"_links":{"self":[{"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/posts\/6593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/comments?post=6593"}],"version-history":[{"count":0,"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/posts\/6593\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/media\/6093"}],"wp:attachment":[{"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/media?parent=6593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/categories?post=6593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sitecenneti.com\/kimya\/wp-json\/wp\/v2\/tags?post=6593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}