| Course Unit Code | 636-0421/01 |
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| Number of ECTS Credits Allocated | 6 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 * | |
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| Semester when the Course Unit is delivered | Summer 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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| SOJ33 | prof. Dr. Ing. Jaroslav Sojka |
| BET37 | doc. Ing. Petra Váňová, Ph.D. |
| Summary |
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Principles of solid phase transformations; Thermodynamics and kinetics of
solid phase transformations; Iron-Carbon equilibrium diagram; Transformations
of austenite under cooling; Pearlite-Ferrite-cementite; Martensite and
bainite; Heat treatment – general: Annealing: Normalizing; quenching and
tempering; Surface hardening, carburizing; Heat treatment of stainless steels;
Heat treatment of non-ferrous metals (Al, Cu alloys) |
| Learning Outcomes of the Course Unit |
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- Define the importance and the classification of heat treatments of metallic materials;
- Outline the principal equilibrium heat treatments of steels – annealing;
- Clarify the principal non-equilibrium heat treatments of steels – quenching and tempering;
- Describe processes of oxidation and decarburization during heat treatment of steels;
- Differentiate and define the principal procedures of thermo chemical treatment of steels;
- Outline the essential heat treatments of cast irons and non-ferrous metals;
- Compare the internal structure and properties of metallic materials after heat treatments;
- Propose the appropriate heat treatment for the selected kind of material. |
| Course Contents |
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Lectures:
Fundamentals and purposes of heat treatments of metallic materials; solid phase transformations and their mechanisms.
Heat treatments of steels; phase transformations in steels; TTT diagrams, IT diagrams.
Classification of steel annealing; stress relief annealing, recrystallisation annealing, spheroidising annealing; thermal cycles of annealings, final structure and properties.
Normalising; homogenising annealing; thermal cycles of annealings, final structure and properties.
Steel quenching; quenching media; hardenability and its testing; methods of cooling.
Tempering of steels – tempering stages, impact on the steel properties; internal stresses during heat treatment.
Thermo-chemical heat treatments; basic principles; case hardening – principal reactions, technologies, quenching and tempering after carburising, resulting properties.
Nitriding and carbonitriding; principles, technologies, resulting properties.
Heat treatment of the special steels – corrosion resistant steels, tool steels.
Heat treatments of the cast irons; classification of the cast irons; heat treatment of grey and nodular cast irons; malleablising of the cast irons.
Heat treatment of some non ferrous metals (aluminium, copper and their alloys); principle and stages of precipitation hardening; ageing.
Summary; importance of the heat treatment of metallic materials. |
| Recommended or Required Reading |
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| Required Reading: |
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[1] Kraus, G: Steels: Heat Treatment and Processing Principles, ASM Int.,1990.
[2] Thelning, K. E.:Steels and its heat treatment, Butterworths, 1984, 678s. |
1. Skočovský, P., Durmis, J.: Technológia tepelného spracovania kovov. ALFA,
Bratislava 1985.
2. Jech, J.: Tepelné zpracování ocelí. SNTL, Praha 1983, 391s.
3. Pluhař, J., Korrita: Strojírenské materiály, SNTL, Praha, 1979, 562s. |
| Recommended Reading: |
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| [1] Porter, D. A., Easterling, K. E., Sherif, M. Y.: Phase Transformations in Metals and Alloys, 3rd edition, CRC Press, USA, 2009, 500s. |
| [1] Ryš, P., Cenek, M., Mazanec, K., Hrbek, A.: Nauka o materiálu I, Nauka o kovech 4. svazek, Železo a jeho slitiny. ACADEMIA, Praha, 1975, 542s. |
| Planned learning activities and teaching methods |
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| Lectures, Tutorials, Experimental work in labs, Project work |
| Assesment methods and criteria |
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| Tasks are not Defined |