| Course Unit Code | 636-2008/02 |
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| Number of ECTS Credits Allocated | 5 ECTS credits |
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| Type of Course Unit * | Compulsory |
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| Level of Course Unit * | First 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 course is aimed at basic knowledge of damage processes in materials. Lectures are devoted to brittle and ductile fracture, fatigue, creep, corrosion damage and wear of surface materials. Knowledge of the basic mechanisms of degradation processes is exercised in solving technical. |
| Learning Outcomes of the Course Unit |
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| The course objective is to familiarize students with problems of production and operation degradations in engineering materials. The course will provide students with the basic information on production and operation degradation in engineering materials. Students will learn to regard material as a chemically and structurally heterogeneous body, whose states can be greatly affected by exploitation conditions. Students should be able to assess the effect of the technologies used as well as of the conditions of exploitation on the properties of the materials of component parts and structures. |
| Course Contents |
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1. Introductory lecture. Manufacturing and service degradation. Limit States of Materials. Damage of major material groups.
2. Production degradation, metallurgy, chemical and structural heterogeneity, impurities segregation. Degradation of welded joints.
3. Stress and strain. Ductile, high-energy fractures, damage during plastic deformation, breach of overload.
4. Brittle fractures, fracture mechanics principles, low-energy fractures, influences of composition and structure of the material.
5. Fatigue process, cyclic stresses. Initiation and propagation of cracks, life curves (SN). Methods for testing.
6. Factors affecting the fatigue life, notches, surface conditions and environment. Life prediction, the solution of selected problems.
7. Fundamentals of creep (creep) materials. Effects of stress and temperature. Main mechanisms of creep.
8. Methods of testing and extrapolation of data creep. Larson-Miler parameter estimates lifetime, creep resistant alloys
9. Introduction to electrochemical corrosion, anodic and cathodic reactions, E-pH diagrams, Faraday's law, the rate of corrosion, passivity of metals, local types of corrosion,
10. Oxidation at high temperatures in gases, the effect of hydrogen, methods of protection against corrosion, heat-resistant steels and alloys. Stress corrosion cracking and hydrogen embrittlement.
11. Basics of wear surfaces, adhesive, abrasive and erosive wear, the main parameters, the possibility of testing
12. Surface damage during cavitation, contact fatigue and wear corrosion (fretting). Main factors and ways of protection.
13. Radiation damage, interaction of radiation with material, radiation hardening and embrittlement of materials. The photo-degradation of polymers.
14. Combined effects of certain degradation processes. Introduction to the analysis of damage. Examples from practice. Monitoring. |
| Recommended or Required Reading |
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| Required Reading: |
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CALLISTER, W. D. Materials Science and Engineering. An Introduction. 7th. ed. Iowa: University Iowa, John Wiley-Sons, 2007. ISBN 978-0-471-73696-7.
MORAVČÍK, R. and M. HAZLINGER. Degradation Processes and Life-time Prediction. Plzeň: Aleš Čeněk s.r.o., 2017. ISBN 978-80-7380-670-5. |
LASEK, S. Základy degradačních procesů. Ostrava: VŠB-TU Ostrava, 2014. ISBN 978-80-248-3591-4. Dostupné z: http://katedry.fmmi.vsb.cz/Modin_Animace/Opory/03_Materialové_inzenyrstvi/01_Zaklady_degradacnich_procesu/ Lasek_Zaklady_degradacnich_procesu.pdf
STRNADEL, B. Nauka o materiálu. Konstrukční materiály a jejich degradační procesy. 1. vyd. Ostrava: ES VŠB, 1993. ISBN 80-7078-207-2.
POKLUDA, J. Mechanické vlastnosti a struktura pevných látek. Brno: PC-DIR Nakladatelství Brno, 1994. ISBN 80-214-0575-9.
CALLISTER, W. D. Materials Science and Engineering. An Introduction. 7th. ed. Iowa: University Iowa, John Wiley-Sons, 2007. ISBN 978-0-471-73696-7.
MORAVČÍK, R. a M. HAZLINGER. Degradation Processes and Life-time Prediction. Plzeň: Aleš Čeněk s.r.o., 2017. ISBN 978-80-7380-670-5. |
| Recommended Reading: |
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| FELBECK, D. K. and A. G. ATKINS. Strength and Fracture of Engineering Materials. 1st. ed. Englewood: Prentice Hall, 1984. ISBN 0-13-851709-6. |
STRNADEL, B. Řešené příklady a technické úlohy z materiálového inženýrství. Ostrava: Ostravské tiskárny, 1998, 334 s.
KOUTSKÝ, J. Degradační procesy a predikce životnosti. Plzeň: ZU Plzeň, 1995. ISBN 80-7082-177-9.
FELBECK, D. K. a A. G. ATKINS. Strength and Fracture of Engineering Materials. 1st. ed. Englewood: Prentice Hall, 1984. ISBN 0-13-851709-6. |
| Planned learning activities and teaching methods |
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| Lectures, 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 | 30 | 15 |
| Examination | Examination | 70 | 36 |