Course Objective
Course Contents
Who Should Attend
Course Lecturer

Created in July 1995 last updated April 2005
 
 
 

COURSE OBJECTIVE

The enormous cost of corrosion to industry can be significantly reduced through effective corrosion testing and monitoring. This course aims to present to the technologists and engineers a dozen of corrosion testing and monitoring techniques that can be used to solve many of their most tedious and persistent corrosion problems. The course will provide the participants with a thorough understanding of the basic principles and the practical applications of some simple yet powerful techniques in corrosion testing and monitoring. For each technique, a step by step guide for performing the corrosion measurements will be described.

[Back to top]

COURSE CONTENT

This course will cover a wide range of testing and monitoring techniques from weight loss coupons, ER and LPR to electrochemical impedance spectroscopy (EIS) for routine applications such as rapid screening for materials selection, failure analysis, corrosion rate measurement, life prediction, evaluation of paints/coatings/electroplating/inhibitors, on-line monitoring of industrial processes, localised corrosion and sensitisation of stainless steels and alloys.  Following is an outline of the contents:

 I.    Basics of Corrosion Measurements
        -corrosion and society
        -the need for corrosion testing and monitoring
        -terminology and conventions
        -the nature of corrosion process
        -classification of corrosion test
        -electrochemistry and corrosion

II.    Corrosion Testing and Monitoring Techniques

        -technique No.1: weight loss coupon
        -technique No.2: electrical resistance (ER))
        -technique No.3: linear polarisation resisttance (LPR)
        -technique No.4: Tafel polarisation
        -technique No.5: potentiodynamic anodic pollarisation
        -technique No.6: potentiostatic polarisatioon
        -technique No.7: cyclic polarisation for piitting test
        -technique No.8: Electrochemical potentiokiinetic reactivation (EPR) for sensitisation test
        -technique No.9: ZRA for galvanic corrosionn of welded structures/components
        -technique No.10: electrochemical impedancee spectroscopy (EIS)
        -technique No.11: electrochemical noise
>         -technique No.12: hydrogen monitoring

III.   On-Line Corrosion Monitoring

        -WHY use on-line corrosion monitoring
        -direct methods of on-line corrosion monitooring
        -on-line monitoring system components and ffunctions
        -principle on-line corrosion monitoring metthods
        -WHERE & WHEN to use it
        -HOW much does it cost        

IV.  Applications of Corrosion Testing and Monitoring Techniques

        -quality control, performance evaluation annd process optimization of plating bath in
            electroplating and electroless plating       
        -quality control, performance evaluation and process optimization in chromating and anodizing operations
        -impedance and admittance measurements on anodized aluminum/magnesium alloys
        -performance evaluation and life-prediction of organic coatings/paints
        -determining the effect of surface preparation, optimal thickness, edge effect, delamination
        -condition assessment of coating systems after thermal shock, seawater flooding etc.
        -corrosion resistance of  Metal-Matrix Composite
        -corrosion inhibitor: efficiency, selection and screening
        -on-site corrosion rate measurements for bridges, buildings, lampposts and other structures

WHO SHOULD ATTEND

This course has been structured in such a way that it is particularly suited for the technologists and engineers who are interested in applications of the state of the art technology in corrosion monitoring and testing to solving their most tedious and persistent corrosion problems. It is also suited for technical personnel whose work involves any of the following: materials evaluation, failure analysis, quality assurance, process control and maintenance.