{"id":7539,"date":"2022-08-01T20:13:15","date_gmt":"2022-08-01T19:13:15","guid":{"rendered":"https:\/\/www.nickzom.org\/blog\/?p=7539"},"modified":"2024-05-27T17:22:46","modified_gmt":"2024-05-27T16:22:46","slug":"how-to-calculate-and-solve-for-activation-polarization-corrosion","status":"publish","type":"post","link":"https:\/\/www.nickzom.org\/blog\/2022\/08\/01\/how-to-calculate-and-solve-for-activation-polarization-corrosion\/","title":{"rendered":"How to Calculate and Solve for Activation Polarization | Corrosion"},"content":{"rendered":"<p>The activation polarization is illustrated by the image below. To calculate activation polarization, three essential parameters are needed and these parameters are <strong>Constant for the Half Cell (\u03b2), Constant for the Half Cell (i<sub>o<\/sub>)<\/strong> and <strong>Current per Unit Density (i).<\/strong><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-7553\" src=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/activation-polarization.png\" alt=\"\" width=\"271\" height=\"186\" \/><\/p>\n<h3><strong>The formula for calculating activation polarization:<\/strong><\/h3>\n<p>\u03b7<sub>a<\/sub>\u00a0= \u00b1\u03b2 log(<sup>i<\/sup>\/<sub>io<\/sub>)<\/p>\n<p>Where:<\/p>\n<p>\u03b7<sub>a<\/sub>\u00a0= Activation Polarization<br \/>\n\u03b2 = Constant for the Half Cell<br \/>\ni<sub>o<\/sub>\u00a0= Constant for the Half Cell<br \/>\ni = Current per Unit Density<\/p>\n<p>Let&#8217;s solve an example;<br \/>\nFind the activation polarization when the constant for the half cell is 10, the constant for the half cell is 5 and the current per unit density is 20.<\/p>\n<p>This implies that;<\/p>\n<p>\u03b2 = Constant for the Half Cell = 10<br \/>\ni<sub>o<\/sub> = Constant for the Half Cell = 5<br \/>\ni = Current per Unit Density = 20<\/p>\n<p>\u03b7<sub>a<\/sub>\u00a0= \u00b1\u03b2 log(<sup>i<\/sup>\/<sub>io<\/sub>)<br \/>\n\u03b7<sub>a<\/sub>\u00a0= \u00b1(10) log(<sup>20<\/sup>\/<sub>5<\/sub>)<br \/>\nThat is, \u03b7<sub>a<\/sub> = \u00b1(10) log(4)<br \/>\n\u03b7<sub>a<\/sub> = \u00b1(10) (0.6020)<br \/>\n\u03b7<sub>a<\/sub> = \u00b16.020<\/p>\n<p>Therefore, the\u00a0<strong>activation polarization\u00a0<\/strong>is <strong>\u00b16.020.<\/strong><\/p>\n<p>Read more:\u00a0<a href=\"https:\/\/www.nickzom.org\/blog\/2022\/08\/17\/how-to-calculate-and-solve-for-concentration-polarization-corrosion\/\">How to Calculate and Solve for Concentration Polarization | Corrosion<\/a><\/p>\n<h3><strong>How to Calculate Activation Polarization With Nickzom Calculator<\/strong><\/h3>\n<p>Nickzom Calculator \u2013\u00a0<strong>The Calculator Encyclopedia<\/strong> is capable of calculating the activation polarization.<\/p>\n<div>\n<p>To get the answer and workings of the activation polarization using the <strong>Nickzom Calculator \u2013 The Calculator Encyclopedia.\u00a0<\/strong>First, you need to obtain the app.<\/p>\n<p>You can get this app via any of these means:<\/p>\n<p><strong>Web<\/strong>\u00a0\u2013\u00a0<a href=\"https:\/\/www.nickzom.org\/calculator-plus\">https:\/\/www.nickzom.org\/calculator-plus<\/a><\/p>\n<p>To get access to the\u00a0<strong>professional\u00a0<\/strong>version via web, you need to\u00a0<strong>register<\/strong>\u00a0and\u00a0<strong>subscribe\u00a0<\/strong>to have utter access to all functionalities.<br \/>\nYou can also try the\u00a0<strong>demo\u00a0<\/strong>version via\u00a0<a href=\"https:\/\/www.nickzom.org\/calculator\">https:\/\/www.nickzom.org\/calculator<\/a><\/p>\n<p><strong>Android (Paid)<\/strong>\u00a0\u2013\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=org.nickzom.nickzomcalculator\">https:\/\/play.google.com\/store\/apps\/details?id=org.nickzom.nickzomcalculator<\/a><br \/>\n<strong>Android (Free)<\/strong>\u00a0\u2013\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.nickzom.nickzomcalculator\">https:\/\/play.google.com\/store\/apps\/details?id=com.nickzom.nickzomcalculator<\/a><\/p>\n<p><strong>Apple (Paid)<\/strong>\u00a0\u2013\u00a0<a href=\"https:\/\/itunes.apple.com\/us\/app\/nickzom-calculator\/id1331162702?mt=8\">https:\/\/itunes.apple.com\/us\/app\/nickzom-calculator\/id1331162702?mt=8<\/a><br \/>\nOnce, you have obtained the calculator encyclopedia app, proceed to the\u00a0<strong>Calculator Map,\u00a0<\/strong>then click on\u00a0<b>Materials and Metallurgical\u00a0<\/b>under\u00a0<strong>Engineering<\/strong><strong>.<\/strong><\/p>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2021\/07\/Screenshot-2.png\" \/><\/p>\n<p>Now, Click on <strong>Corrosion<\/strong><b>\u00a0<\/b>under\u00a0<strong>Materials and Metallurgical<\/strong><\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-7503 size-full\" src=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/07\/Screenshot-300.png\" alt=\"\" width=\"1366\" height=\"768\" srcset=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/07\/Screenshot-300.png 1366w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/07\/Screenshot-300-300x169.png 300w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/07\/Screenshot-300-1024x576.png 1024w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/07\/Screenshot-300-768x432.png 768w\" sizes=\"(max-width: 1366px) 100vw, 1366px\" \/><\/p>\n<p>Now, Click on\u00a0<strong>Activation Polarization<\/strong>\u00a0under <b>Corrosion<\/b><\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-7552 size-full\" src=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-324.png\" alt=\"\" width=\"1366\" height=\"768\" srcset=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-324.png 1366w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-324-300x169.png 300w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-324-1024x576.png 1024w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-324-768x432.png 768w\" sizes=\"(max-width: 1366px) 100vw, 1366px\" \/><\/p>\n<p>The screenshot below displays the page or activity to enter your values, to get the answer for the activation polarization according to the respective parameter which is the <strong>Constant for the Half Cell (\u03b2), Constant for the Half Cell (i<sub>o<\/sub>)<\/strong> and <strong>Current per Unit Density (i).<\/strong><\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-7551 size-full\" src=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-325.png\" alt=\"\" width=\"1366\" height=\"768\" srcset=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-325.png 1366w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-325-300x169.png 300w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-325-1024x576.png 1024w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-325-768x432.png 768w\" sizes=\"(max-width: 1366px) 100vw, 1366px\" \/><\/p>\n<p>Now, enter the values appropriately and accordingly for the parameters as required by the <strong>Constant for the Half Cell (\u03b2)<\/strong> is <strong>10<\/strong>,<strong> Constant for the Half Cell (i<sub>o<\/sub>)\u00a0<\/strong>is\u00a0<strong>5<\/strong> and <strong>Current per Unit Density (i)<\/strong> is <strong>20<\/strong>.<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-7550 size-full\" src=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-326.png\" alt=\"How to Calculate and Solve for Activation Polarization | Corrosion\" width=\"1366\" height=\"768\" srcset=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-326.png 1366w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-326-300x169.png 300w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-326-1024x576.png 1024w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-326-768x432.png 768w\" sizes=\"(max-width: 1366px) 100vw, 1366px\" \/><\/p>\n<p>Finally, Click on Calculate<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-7549 size-full\" src=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-327.png\" alt=\"How to Calculate and Solve for Activation Polarization | Corrosion\" width=\"1366\" height=\"768\" srcset=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-327.png 1366w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-327-300x169.png 300w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-327-1024x576.png 1024w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-327-768x432.png 768w\" sizes=\"(max-width: 1366px) 100vw, 1366px\" \/><br \/>\n<img decoding=\"async\" class=\"alignnone wp-image-7548 size-full\" src=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-328.png\" alt=\"How to Calculate and Solve for Activation Polarization | Corrosion\" width=\"1366\" height=\"768\" srcset=\"https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-328.png 1366w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-328-300x169.png 300w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-328-1024x576.png 1024w, https:\/\/www.nickzom.org\/blog\/wp-content\/uploads\/2022\/08\/Screenshot-328-768x432.png 768w\" sizes=\"(max-width: 1366px) 100vw, 1366px\" \/><\/p>\n<p>As you can see from\u00a0the screenshot above,\u00a0<strong>Nickzom Calculator<\/strong>\u2013 The Calculator Encyclopedia solves for the activation polarization and presents the formula, workings and steps too.<\/p>\n","protected":false},"excerpt":{"rendered":"The activation polarization is illustrated by the image below. To calculate activation polarization, three essential parameters are needed&hellip;","protected":false},"author":5,"featured_media":15908,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","_lmt_disableupdate":"","_lmt_disable":"","_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","_yoast_wpseo_focuskw_text_input":"","csco_display_header_overlay":false,"csco_singular_sidebar":"","csco_page_header_type":"","footnotes":""},"categories":[47],"tags":[2113,2111,1490,2112,60,543],"class_list":["post-7539","post","type-post","status-publish","format-standard","has-post-thumbnail","category-engineering","tag-activation-polarization","tag-constant-for-half-cell","tag-corrosion","tag-current-per-unit-density","tag-engineering","tag-materials-and-metallurgical","cs-entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Calculate and Solve for Activation Polarization | Corrosion<\/title>\n<meta name=\"description\" content=\"Find How to Calculate and Solve for Activation Polarization. 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