TMAK2003

Corrosion

Last taught 2020

Spring

Trondheim

Norwegian

Overview

46 candidates

Average grade

C

3.17

0.15

Pass rate

96%

4 points

Grade distribution
Average over time
Pass rate over time

About this course

Content

Corrosion theory, thermodynamic and electrode kinetic conditions, Pourbaix diagrams and polarization curves. Common types of corrosion, characteristic features, mechanisms and measures. Impact of metallurgical, physical and mechanical factors. Corrosion properties of the main construction materials. Inhibitors, cathodic protection (coating, design and calculation models), monitoring and measurement principles. Surface treatment for corrosion protection. Testing methods

Learning outcomes

Knowledge
The candidate has knowledge of: The theoretical basis for why corrosion occurs on metallic materials in water based electrolytes, including thermodynamics, electrode kinetics, mass transfer and passivity. Various corrosion types. Different methods to reduce the likelihood of corrosion starting, such as surface treatment, cathodic protection and inhibitors. The candidate has knowledge of: Various relevant standards (eg ASTM, NORSOK, ISO and DNV)
Skills
The candidate can: Calculate and construct important charts such as Pourbaix charts and polarization curves. Calculate corrosion rate for a metal under given conditions. Distinguish between and describe the characteristic features of different relevant corrosion forms. Suggest different types of corrosion-resistant coating for a given construction. Make estimates of cathodic protection as calculating the number of anodes for protection of a construction. Schedule, implement and report corrosion tests in the laboratory.
General competence
The candidate can: Participate actively in a group work to find reasons for corrosion-related damage. Participate in professional discussions and tests at the laboratory and propose alternative materials and corrosion protection measures.

Teaching methods

Lectures, exercises, problem-based group work, laboratory work

Expected time consumption:
Lectures: 60 hours
Lab work: 30 hours
PBL: 50 hours
Exercises: 30 hours
Own work: 100 hours
Total: 270 hours