I. Course topics
1. Introduction. Brief history. The role of heat treatment in machines industry. Examples. Classifications. Economic importance of heat treatment.
2. Basic operations of heat treatment: heating, holding, cooling.
3. Annealing: homogenous annealing and normalization annealing.
4. Annealing: softening (globulisation), recrystallization, stress relief.
5. Bulk quenching, quenching methods. Surface quenching. Hardenability.
6. Tempering, tempering phases, tempering parameters. Quenching and high tempering. Fragility after tempering.
7. Thermochemical heat treatment. Carburizing, nitriding, carbonitriding, nitrocarburizing, sulfizing and sulfocarbonitriding.
8. Surface engineering. Ionic implantation. Conversion treatment. Galvanic deposition. Thermal deposition through immersion in melted metals, welding and spraying. Vapour deposition (PVD and CVD methods).
II. Laboratory works
1. Determining of the heating duration for thin/thick heat-treated samples.
2. The influence of normalization over the structure and mechanical features of cast steel, plastic deformed steel or overheated steel.
3. Continuous quenching of steels.
4. Determining steel hardenability through Jomminy.
5. Tempering regimes for quenching and tempering steels and tools steel.
6. Ion nitriding. Nitrided parts control.
7. Heat treatment for high speed steel. Heat treatment for gears.
