Theory of Passivation and Polarization | Free Online Course | Alison
Loading

Early International Women's Day Celebration: Get 30% OFF All Certificates & Diplomas! Offer valid until Friday, 5th March 2021

Claim My 30% OFF

Theory of Passivation and Polarization in Active-Passive Metals

A free online course on theory of passivation in active-passive metals, as well as the formation of porous deposits.

Science
Free Course
In this free online course on the Theory of Passivation and Polarization in Active-Passive Metals, you will learn about the ennoblement of metal in relation to passivity, as well as the formation of porous deposits or barrier film on a metal surface. Study, too, the effects of concentration polarization of cathodic reaction on the passivity of an active-passive metal.
  • Duration

    4-5 Hours
  • Certification

    Yes
  • Mobile Friendly

    Yes
  • Publisher

    NPTEL
  • Accreditation

    CPD

Description

Modules

Outcome

Certification

View course modules

Description

Theory of Passivation and Polarization in Active-Passive Metals is a free online course that begins by introducing you to the concept of ‘passivation’, as well as Faraday's two-staged experiment on converting iron with HNO3 (nitric acid) solution. This course will teach you the ennoblement of metal in relation to passivity, as well as the formation of porous deposit or barrier film on a metal surface. The different passivation potentials such as primary, complete, constant and trans-passive will also be covered in the material.

It then explains the oxygen evolution in a situation showing the interaction between polarization and Pourbaix diagrams. You will learn about the increase in current density due to transpassivity, oxygen evolution reaction, and the formation of porous film or breakdown of passive film. This course will familiarize you about the interaction between cathodic polarization and anodic polarization plots for systems in passivation mode, as well as the different criteria for stable, complete primary passivity.

Furthermore, you will study the influence of the mechanical effect of passive film after reaching concentration, as well as the effect of concentration polarization of cathodic reaction on passivity. The relationship existing between the corrosion rate to velocity and the current density will also be covered. This free online course will be of great use to anyone wanting an in-depth understanding of passivation, corrosion and metallurgy. If you register for this course now, you can start your next learning journey today.

Start Course Now

Learning Outcomes

Upon successful completion of this course, you should be able to:


  • Evaluate the concept of passivation
  • List the elements of passivation
  • Evaluate the ennoblement of metal in relation to passivity
  • Analyze the formation of layers on a metal surface
  • Explain the types of passivation potentials
  • Explain the interaction of cathodic polarization and anodic polarization plots
  • Outline the effect of interaction between complete passivation potential and anodic polarization
  • Identify the effect of the interaction of cathodic polarization at different plots of an active-passive metal
  • Analyze the criteria for the different types of passivity in anodic and cathodic polarization line
  • State the mechanical effect of the passive film

Certification

All Alison courses are free to enrol, study and complete. To successfully complete this Certificate course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Certificate course, you have the option to acquire an official Certificate, which is a great way to share your achievement with the world. Your Alison Certificate is:

Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive for you to continue empowering yourself through lifelong learning

Alison offers 3 types of Certificates for completed Certificate courses:

Digital Certificate - a downloadable Certificate in PDF format, immediately available to you when you complete your purchase
Certificate - a physical version of your officially branded and security-marked Certificate, posted to you with FREE shipping
Framed Certificate - a physical version of your officially branded and security-marked Certificate in a stylish frame, posted to you with FREE shipping

All Certificates are available to purchase through the Alison Shop. For more information on purchasing Alison Certificates, please visit our FAQs. If you decide not to purchase your Alison Certificate, you can still demonstrate your achievement by sharing your Learner Record or Learner Achievement Verification, both of which are accessible from your Dashboard. For more details on our Certificate pricing, please visit our Pricing Page.

Careers

    Notification
    You have received a new notification
    Click here to view them all