Lecture
1. The importance of steel production in the global and national scale. Characteristics of chemical cleanliness. Effect of P, S, N, H and O on the properties of steel. The main principles of metallurgical steel production with low content of those elements.
2. Non-ferrous metals in the steel. Sources of non-ferrous metals in steel production. Ways to reduce the non-ferrous metals in the steel crap. Effect of non-ferrous metals in the steel. Positive and negative effects of non-ferrous metals on the properties of steel.
3. Effect of non-ferrous metals on the properties of steels for the manufacture of equipment for power engineering. Limits of the contents of non-ferrous metals in the steel. J, B and K factors of steel cleanliness.
4. The metallography cleanliness of steel. Distribution of nonmetallic inclusions - endogenous and exogenous inclusions.Sources and origin of the exogenous non-metallic inclusions. Thermodynamics of oxide inclusions.
5. Thermodynamics of sulfides, nitrides and carbides. Effect of deoxidation of steel on the non-metallic inclusions systems.The secondary oxidation of steel.
6. The influence of nonmetallic inclusions on steel properties. Effect on mechanical properties. Influence of inclusions under cyclic loading. Identification of non-metallic inclusions. Optical microscopy, image analysis, electron probe microanalysis of inclusions, chemical methods of inclusions identification.
7. Summary of metallurgical production processes allowing high steel petrographical cleanliness. Application possibilities for the removal of secondary metallurgy tracing elements. Modification of inclusions. Injection metallurgy. Vacuum metallurgy.
8. Specific requirements for steel production technology with high carbon - cord steel.Requirements for the raw materials, the method of secondary processing. Technology of steel casting and crystallization. Subsequent processing methods of semi finished products and the use of finished products.
9. Stainless steel. Corrosion resistance. Types of corrosion.Influence of chemical composition. Types of stainless steel. Effect of inclusions on corrosion resistance of steel, steel machinability, weldability of steel. Peculiarities of morphology and chemical composition of inclusions in stainless steel - impact on the properties of steel.
10. Low carbon steel. ULC steel, the IF steel. Transformer steel. Vacuum decarburization. Principles. Examples of technologies. Rotating vacuum with stirring oxygen. KTB process.
Exercise (only for full-time study form)
1. Steel Standards. The influence of individual elements on steel properties, calculation of J, B, K factors, homogeneous and heterogeneous nucleation. Work in KOVY SW - searching for equivalent steel grades according to the different types of standards.
2. Effects of nitrogen and oxygen on the properties of steel, the calculation of solubility, degassing, Sievert's law.
3. The test. Seminar - The metallographic steel cleanliness, distribution of inclusions. Options of qualitative and quantitative analysis of inclusions, identification of inclusions. Atlas of inclusions.
4. Laboratory exercises aimed at evaluating the metallographic steel cleanliness - sample preparation, setting of light microscope, methods of evaluation, the confrontation of steel samples with standards.
5. Working in the QuikCAST postprocessor simulation software - processing the results of numerical modelling of filling and solidification of steel, interpretation of displayed defects.
6. Confrontation of defects obtained by numerical modelling with real defects in the sample of steel.
7. Metallography steel cleanliness - excursions in the laboratory of department 636, the identification of the inclusions.
8. Seminar - Options of qualitative and quantitative analysis of inclusions. Possibilities for inclusions removal.
9. Effect of inclusions on mechanical properties, impact strength, corrosion resistance. Videos about technologies for producing of high quality steel.
10. Test. Credit.
To obtain credit in the combined study form is needed to develop a session project.
1. The importance of steel production in the global and national scale. Characteristics of chemical cleanliness. Effect of P, S, N, H and O on the properties of steel. The main principles of metallurgical steel production with low content of those elements.
2. Non-ferrous metals in the steel. Sources of non-ferrous metals in steel production. Ways to reduce the non-ferrous metals in the steel crap. Effect of non-ferrous metals in the steel. Positive and negative effects of non-ferrous metals on the properties of steel.
3. Effect of non-ferrous metals on the properties of steels for the manufacture of equipment for power engineering. Limits of the contents of non-ferrous metals in the steel. J, B and K factors of steel cleanliness.
4. The metallography cleanliness of steel. Distribution of nonmetallic inclusions - endogenous and exogenous inclusions.Sources and origin of the exogenous non-metallic inclusions. Thermodynamics of oxide inclusions.
5. Thermodynamics of sulfides, nitrides and carbides. Effect of deoxidation of steel on the non-metallic inclusions systems.The secondary oxidation of steel.
6. The influence of nonmetallic inclusions on steel properties. Effect on mechanical properties. Influence of inclusions under cyclic loading. Identification of non-metallic inclusions. Optical microscopy, image analysis, electron probe microanalysis of inclusions, chemical methods of inclusions identification.
7. Summary of metallurgical production processes allowing high steel petrographical cleanliness. Application possibilities for the removal of secondary metallurgy tracing elements. Modification of inclusions. Injection metallurgy. Vacuum metallurgy.
8. Specific requirements for steel production technology with high carbon - cord steel.Requirements for the raw materials, the method of secondary processing. Technology of steel casting and crystallization. Subsequent processing methods of semi finished products and the use of finished products.
9. Stainless steel. Corrosion resistance. Types of corrosion.Influence of chemical composition. Types of stainless steel. Effect of inclusions on corrosion resistance of steel, steel machinability, weldability of steel. Peculiarities of morphology and chemical composition of inclusions in stainless steel - impact on the properties of steel.
10. Low carbon steel. ULC steel, the IF steel. Transformer steel. Vacuum decarburization. Principles. Examples of technologies. Rotating vacuum with stirring oxygen. KTB process.
Exercise (only for full-time study form)
1. Steel Standards. The influence of individual elements on steel properties, calculation of J, B, K factors, homogeneous and heterogeneous nucleation. Work in KOVY SW - searching for equivalent steel grades according to the different types of standards.
2. Effects of nitrogen and oxygen on the properties of steel, the calculation of solubility, degassing, Sievert's law.
3. The test. Seminar - The metallographic steel cleanliness, distribution of inclusions. Options of qualitative and quantitative analysis of inclusions, identification of inclusions. Atlas of inclusions.
4. Laboratory exercises aimed at evaluating the metallographic steel cleanliness - sample preparation, setting of light microscope, methods of evaluation, the confrontation of steel samples with standards.
5. Working in the QuikCAST postprocessor simulation software - processing the results of numerical modelling of filling and solidification of steel, interpretation of displayed defects.
6. Confrontation of defects obtained by numerical modelling with real defects in the sample of steel.
7. Metallography steel cleanliness - excursions in the laboratory of department 636, the identification of the inclusions.
8. Seminar - Options of qualitative and quantitative analysis of inclusions. Possibilities for inclusions removal.
9. Effect of inclusions on mechanical properties, impact strength, corrosion resistance. Videos about technologies for producing of high quality steel.
10. Test. Credit.
To obtain credit in the combined study form is needed to develop a session project.