618-0911/02 – Theory of Steelmaking Processes (TeorOP)
| Gurantor department | Department of Metallurgy and Foundry | Credits | 10 |
| Subject guarantor | prof. Ing. Markéta Tkadlečková, Ph.D. | Subject version guarantor | prof. Ing. Zdeněk Adolf, CSc. |
| Study level | postgraduate | Requirement | Choice-compulsory |
| Year | | Semester | winter + summer |
| | Study language | Czech |
| Year of introduction | 2010/2011 | Year of cancellation | 2014/2015 |
| Intended for the faculties | FMT | Intended for study types | Doctoral |
Subject aims expressed by acquired skills and competences
- student will be able to explain principles for elimination of gases from steel
- student will be able to characterise processes proceeding on the boundary slag-metal on the base of thermodynamics and kinetics
- student will be able formulate conditions for optimum course of steelmaking processes
Teaching methods
Individual consultations
Summary
The subject is focused on the theory of thermodynamic and kinematic basics, it solves of mechanisms of metallurgical reactions. The atention is also devoted to the gases behaviour, removal of inclusions, to methods of secondary metalurgy, there are also outlined the priciples of production of clean steel.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
E-learning
Other requirements
no demands for students
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1 Chemical equilibrium. Equilibrium constant and ways of its experessing.
2 Principle of action and reaction.
3 Criteria of processes equilibrium (G, K).
4 Reaction isotherm and its importance.
5 Ideal solution – Raoult’s law.
6 Diluted solution - Henry’s law.
7 Thermodynamic activity of component in solution.
8 Ways of expressing the activity of component in solution.
9 Calculation of activity coeffients in multicomponent systems.
10 Molten steel slags - slag molecular theory.
11 Ionic theory of slags.
12 Affinity of elements - especially to oxygen.
13 Nernst distribution law.
14 Distribution of oxygen between the slag and metal.
15 Reaction occurring during the production and refining of steel: the oxidation of Si and Mn, transmission of oxygen from the atmosphere into the steel bath.
16 Dephosphorisation of steel.
17 Desulfurization of steel.
18 Solubility of gases in metals; dependence on the partial gas pressure and temperature.
19 Hydrogen in iron and steel.
20 Nitrogen in iron and steel.
21 Oxygen in iron and steel.
22 Carbon reaction and its importance in the production and refining of steel.
23 Influence of temperature and pressure on carbon reaction.
24 Vacuum carbon deoxidation of steel.
25 Coagulation deoxidation of steel.
26 Diffusion deoxidation and deoxidation of steel with synthetic slag.
27 Inclusions in steel. Nucleation.
28 Inclusions and modification of inclusions.
Conditions for subject completion
Conditions for completion are defined only for particular subject version and form of study
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.