Politecnico di Torino
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Politecnico di Torino
Academic Year 2017/18
05ALJMZ, 05ALJMW
Materials corrosion and protection
Master of science-level of the Bologna process in Materials Engineering - Torino
Master of science-level of the Bologna process in Chemical And Sustainable Processes Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Angelini Emma Paola Maria Virginia ORARIO RICEVIMENTO     42 6 12 0 6
SSD CFU Activities Area context
ING-IND/21
ING-IND/23
2
4
D - A scelta dello studente
D - A scelta dello studente
A scelta dello studente
A scelta dello studente
Subject fundamentals
The course provides the fundamental knowledge on the corrosion processes and on the chemical and physical phenomena correlated to the interaction material environment. It provides a basic overview of the kinetic and thermodynamic aspects of the corrosion phenomena and illustrates the corrosion mechanisms affecting steels, light alloys and Cu-based alloys. Several case studies of interest in the industrial field, in the biomaterial and in the cultural heritage field will be described. Inspection methods and corrosion testing, as well as fundamentals on corrosion prevention and protection will be also briefly illustrated.
Expected learning outcomes
- Knowledge on the degradation mechanisms of metals and alloys exposed to environments of different aggressivity
- Knowledge on corrosion prevention and control
- Basic knowledge on inspection methods and corrosion testing
- Skill in the material selection and component design for the different technological applications
Prerequisites / Assumed knowledge
- Basic knowledge on the kinetic and thermodynamic aspects of chemical reactions
- Basic knowledge on electrochemistry
Contents
- Corrosion: scientific, technical and economical aspects of corrosion processes; uniform and localized corrosion; high-temperature corrosion; electrochemical theory of corrosion.
- Kinetic and thermodynamic aspects of the corrosion phenomena: Nernst equation, galvanic series, Butler-Volmer equation, potential - pH diagrams, Evans diagrams and Tafel law.
- Corrosion morphology: galvanic corrosion, pitting corrosion, crevice corrosion, intergranular corrosion, filiform corrosion, selective corrosion, stress corrosion cracking , corrosion fatigue, fretting corrosion, erosion, corrosion fouling.
- Corrosion environments: atmospheric corrosion, corrosion in soil, corrosion in concrete, corrosion in sea water.
- Corrosion control: material design, removal of corrosive components, controlled environments, structure and stress conditions of the material.
- Protective coatings and inhibitors: organic and inorganic coatings; electrodeposition; paints and painting cycles; plasma treatments.
- Corrosion prevention: cathodic protection; cathodic protection of underground structures, ships and offshore structures, cathodic protection in concrete; anodic and cathodic protection prevention.
- Corrosion testing: accelerated corrosion tests, electrochemical measurements, inspection methods and in situ measurements; portable instrumentations.
Delivery modes
The course includes lectures and exercises in teams that study practical cases of corrosion with special regard to material selection criteria, materials design as a function of the environmental aggressivity.
Laboratory activities will be developed as well as corrosion tests carried out trough the IHomeCorr remote laboratory (https://ihomecorr.led.polito.it/).
Texts, readings, handouts and other learning resources
All didactic materials employed during the course will be provided on the web portal.

References
- G. Bianchi, F. Mazza: "Corrosione e protezione dei metalli". Ed. AIM Milano
- P. Pedeferri: "Corrosione e protezione dei materiali metallici". Ed. CLUP Milano
- G. Fontana: "Corrosion Engineering". Ed. McGraw-Hill.

On-line didactic material: http://www.corrosion-doctors.org
Assessment and grading criteria
The exam aims to evaluate the knowledge of the topics listed in the program and the ability to apply theory to the solution of practical corrosion case studies.

The exam consists of a written test, lasting 1 hour with three open questions and one exercise focused on the evaluation of a practical corrosion case study. During the exam, the students can not bring any type of books or notes to the classroom.
In the first exam session after the end of the course, the presentation, not compulsory, of the results of the laboratory activity may be performed and may lead to an increase of the final score up to 5/30, until a final maximum score of 30 laude. The integration of the final score is applied, only for the students who pass the written test in the same academic year and with a minimum score of 18/30.

Programma definitivo per l'A.A.2017/18
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