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Lecturer(s)
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Novotný Jan, doc. PhDr. Ph.D.
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Michna Štefan, prof. Ing. PhD.
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Course content
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1. Internal structure of metals and alloys 2. Fundamentals of crystallography 3. Dislocations and between dislocations and plastic deformation during forming 4. Ways of strengthening metals. 5. Precipitation hardened alloy 6. Solidification of metals and their alloys 7. Grain boundaries: definition and description. Properties of grain boundaries: segregation and migration. 8. Diffusion 9. Chemical treatment of metal surfaces and diffusion processes in metal heat treatment (nitriding, cementation, ?). 10. Ways and nature of the surface wear of materials. 11. Violation of the fracture, the mechanism of fracture, fracture types and their origin, principle fractography and its application.
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Learning activities and teaching methods
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unspecified
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Learning outcomes
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Processes taking place in materials in the field of structure, substructure in connection with technological processes (casting, forming, machining, heat treatment). Changes taking place within materials in the structure and substructure due to technological processes and their impact on the overall properties of materials. Changes in the material as a result of these internal processes and ways to improve the properties of the material as a result of these processes. Course contents: 1. Internal structure of metals and alloys. 2. Basics of crystallography. 3. Dislocation - origin, movement of dislocation, dislocation of cast material, relationship between dislocations and properties. 4. Relationship between dislocations and plastic deformation during forming. 5. Methods and mechanism of metal strengthening. 6. Precipitation hardened alloys. 7. Crystallization of metals and their alloys - the formation of inhomogeneities and their elimination. 8. Grain boundaries: definition and basic description. Properties of grain boundaries: segregation and migration. 9. Diffusion in solids. 10. Chemical - heat treatment of metal surfaces and diffusion processes in the heat treatment of metals (nitriding, cementing, boriding). 11. Methods and nature of surface wear of materials. 12. Fracture failure. Mechanism of fracture formation, types of fracture and its origin. The essence of fractography and its use.
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Prerequisites
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Students will be acquainted and be familiar with the methods of casting with regard to technological dialing foundry technology, the elimination of defects and maximum production efficiency and possibilities of advanced technology casting in the production of automotive components.
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Assessment methods and criteria
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unspecified
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Recommended literature
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J.JECH. Tepelné zpracování oceli, 1983.
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M. ŽÍDEK, V. DĚDEK, B. SOMMER. Tváření oceli. SNTL Praha. 1985.
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Š. Michna a kol. Encyklopedie hliníku,kapitola 4, 6, 7, 200. 2005.
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Š. Michna. Zpracování kovů, plastů - modelování - studijní opora.
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T. GRÍGEROVÁ, T. a kol. Zlivárenstvo neželezných kovov. 1988.
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V. MACHEK, J. SODOMKA. Nauka o materiálu, 1. část. ČVUT. 2001.
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V. ZÁBAVNÍK, M. BURŠÁK. Materiál, tepelné spracovanie a kontrola kvality., TU Košice, 2004. 2004.
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