| Course Unit Code | 636-3022/01 |
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| Number of ECTS Credits Allocated | 4 ECTS credits |
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| Type of Course Unit * | Choice-compulsory type B |
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| Level of Course Unit * | Second Cycle |
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| Year of Study * | Second Year |
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| Semester when the Course Unit is delivered | Winter Semester |
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| Mode of Delivery | Face-to-face |
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| Language of Instruction | Czech |
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| Prerequisites and Co-Requisites | Course succeeds to compulsory courses of previous semester |
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| Name of Lecturer(s) | Personal ID | Name |
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| LAS40 | doc. Ing. Stanislav Lasek, Ph.D. |
| Summary |
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| The study of electrochemical corrosion has complex nature and follows the students´ previous knowledge of chemistry, physics (thermodynamics and kinetics), materials science and technology. In this subject the student gains theoretical as well as practical knowledge of corrosion processes and protection methods, especially under atmospheric conditions and water environments. The attention is also paid to the localized types of corrosion: pitting, crevice, intergranular, stress corrosion cracking and corrosion fatigue. In chemical corrosion, the specific types of corrosion in gases at higher temperatures, including destruction by hydrogen. The study of corrosion protection is aimed at materials selection with respect to environment severity, at surface treatment, electric (cathodic) protection, inhibitors and structure design. The student is also acquainted about standard methods of testing and evaluation of material resistance to corrosion. |
| Learning Outcomes of the Course Unit |
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Student will be able:
- To understand the main types and processes of corrosion.
- To characterize methods of anti-corrosion protection, mainly by material selection and surface treatments.
- To describe coating and layer deposition technologies.
- To get an overview of testing, monitoring and assessing metal corrosion and corrosion protection.
- To determine and evaluate the main parameters and characteristics of corrosion and material protection.
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| Course Contents |
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1. Basic terms and definitions, types of corrosion, problems caused by corrosion, economic aspects of corrosion and protection. Literature and online resources.
2. Electrochemical corrosion - electrode potentials, standard metal potentials, exchange current and equilibrium potential, Nernst equation. Active, passive and immune status, E-pH diagrams (Pourbaix). Corrosive galvanic cells.
3. Anodic and cathodic processes, partial and total (electrochemical) reactions, corrosion current density and corrosion potential. Polarization curves. Faraday's laws, corrosion rates. Application on examples.
4. Atmospheric corrosion of metals, effects of humidity and pollution, degree of aggressiveness, testing methods and methods of corrosion protection.
5. Corrosion in waters and soils, effects of environmental composition, corro-sion by stray currents, microbial corrosion. Corrosion of steel rods in concrete.
6. Locally and structurally dependent types of corrosion (point, slit, inter-granular). Influence of mechanical stresses (corrosion cracking, corrosion fatigue, fretting).
7. Chemical corrosion: thermodynamics, reactions, kinetics. Types of corrosion in oxidation and reducing atmospheres, damage by hydrogen. Refractory alloys.
8. Corrosion properties of significant technical metals and their alloys (Fe, Al, Mg, Cu, Zn, Ni, Ti). Stainless steels and alloys.
9. Corrosion protection - selection of material, surface protection, environmental treatment, electrical (cathodic) protection, design solutions.
10. Chemical surface treatment. Degreasing, pickling. Creating conversion, diffusion and oxidation layers. Electrochemical processes and surface treatment (pickling, polishing). Galvanic coating deposition, benefits and problems.
11. Hot sprays and their industrial use, principles, additives, used equipment. Surface modification by laser, and ion implantation. PVD and CVD technology. Nanotechnology for corrosion protection.
12. Methods of surface study, X-ray. microanalysis, AES, XPS, SIMS. Testing of thickness, adhesion and porosity of coatings. Surface roughness. Damage of coatings and layers due to mechanical stress, thermal stresses and wearing.
13. Testing of corrosion protection according to standards, selected methods. Operational tests and corrosion monitoring, direct and indirect methods, non-destructive tests. Examples of damaged devices in practice. Design of corrosion protection.
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| Recommended or Required Reading |
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| Required Reading: |
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UHLIG, H., REVIE, W. Corrosion and Corrosion Control. An Introduction to Corrosion Science and Engineering. 4th ed. New York: Wiley-Interscience, 2008. ISBN 978-0-471-73279-2.
GROYSMAN, A. Corrosion for Everybody. Dordrecht: Springer, 2010. ISBN 978-90-481-3476 (e-ISBN 978-90-481-3477-9).
JONES, D. A. Principles and Prevention of Corrosion. 2nd ed. New York: Prentice Hall, 1996. ISBN 0-13-359993-0.
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ČERNÝ, M. aj. Korozní vlastnosti kovových konstrukčních materiálů. 1. vyd. Praha: SNTL, 1984, 264 s.
LASEK, S. Koroze a ochrana proti korozi. Ostrava: VŠB-TU, studijní opora, 2019, .
MOHYLA, M. Technologie povrchových úprav kovů. 3. vyd. Ostrava: FS VŠB-TU Ostrava, 2006, ISBN 80-2481-2177
GROYSMAN, A. Corrosion for Everybody. Dordrecht: Springer, 2010. ISBN 978-90-481-3476 (e-ISBN 978-90-481-3477-9). |
| Recommended Reading: |
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LANDOLT, D. Corrosion and surface chemistry of metals. Lausanne: CRC press, 2007. ISBN 1439807884, ISBN 9780849382338.
SCHWEITZER P. A. Corrosion Engineering Handbook- 3 Volume. Sec. Ed. CRC Press 2006. ISBN 9780849396472. |
ČÍHAL, V. Korozivzdorné oceli a slitiny. 1. vyd. Praha: ACADEMIA – ČMT, 1999. ISBN 80-200-0671-0.
BARTONÍČEK, R. Navrhování protikorozní ochrany. Praha: SNTL, 1980, 287 s.
Koroze a ochrana materiálu. ISSN 1804-1213 (odborný časopis on-line verze)
KOCICH, J. a S. TULEJA. Korózia a ochrana kovov. 4. vyd. Košice: HF TU Košice, 1998, ISBN 80-7099-393-6
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| Planned learning activities and teaching methods |
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| Lectures, Seminars, Tutorials, Experimental work in labs |
| Assesment methods and criteria |
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| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
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| Credit and Examination | Credit and Examination | 100 (100) | 51 |
| Credit | Credit | 35 | 21 |
| Examination | Examination | 65 | 30 |