618-0411/03 – Theoretical Fundamentals of Steelmaking (TeZaVO)
| Gurantor department | Department of Metallurgy and Foundry | Credits | 7 |
| Subject guarantor | prof. Ing. Zdeněk Adolf, CSc. | Subject version guarantor | prof. Ing. Zdeněk Adolf, CSc. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 3 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2012/2013 | Year of cancellation | 2015/2016 |
| Intended for the faculties | FMT | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
- student will be able to explain principles for deoxidisation of accompanying elements at steelmaking
- student will be able to characterise processes proceeding on the boundary slag-metal
- student will be able formulate conditions for optimum course of steelmaking processes
Teaching methods
Lectures
Seminars
Individual consultations
Tutorials
Project work
Other activities
Summary
Subject is interpreted with the purpose to explain theoretical principle of
steelmaking technologies. Principles of oxidation, deoxidisation and processes proceeding on the interface melts of slag and steel and atmosphere.
Compulsory literature:
[1] Turkdogan, E.T.: Physical Chemistry of High Temperature Technology. Academic Press Inc, New York. 1980; 462 pages. ISBN: 0-12-704650-X.
Recommended literature:
[1] Turkdogan, E.T.: Physical Chemistry of High Temperature Technology (Hardcover). Academic Press Inc, New York. 1980; 462 pages. ISBN: 0-12-704650-X.
Additional study materials
Way of continuous check of knowledge in the course of semester
Two semestral papers evaluated by points and their defence within seminars in the course of lessons.
E-learning
Lessons are continuously enriched by ever expanding implementation of e-learning elements.
Other requirements
There are not additional requirements on students in the field of this subject.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures
1. Solutions – ideal, diluted solution – characteristics, importance.
2. Activities of components in solution – manners of expressing the activities, calculation of activities coefficients in poly-component systems.
3. Molten steelmaking slags, characteristics, formation of slags, theory of slags.
4. Nernst distribution law, desulphurisation of steel.
5. Reactions running at steel refining – transfer of oxygen from atmosphere into steel bath – mechanism.
6. Dephosphorisation of steel, phosphorus oxidation and stabilisation of P2O5 in slag.
7. Hydrogen and nitrogen in iron and steel – dependence of gas solubility on pressure, temperature and composition of steel.
8. Carbon reaction – its importance ate production and refining of steel, influence of temperature and pressure on development of carbon reaction.
9. Importance of deoxidation in steel, theoretical foundation of coagulating, diffusion deoxidation and deoxidation of steel by synthetic slag.
10. Conditions for formation of inclusions in liquid and in solidifying steel.
Exercises
1. Heat capacities, enthalpy, entropy, Gibbs and Helmholtz energy.
2. Calculations of equilibria constants of reactions. Technical library - selection and processing of topical literary sources from the area of fundamentals of steelmaking.
3. Reaction isobar, reaction isotherm.
4. Raoult’s and Henry’s law.
5. Calculations of regular, athermal and real solution, test.
6. Calculation of active coefficients in poly-component systems, calculation of molecular and ion composition of slags.
7. Distributive equilibrium between slag and metal (phosphorus, sulphur), specification of program.
8. Reactions running at refining of steel (decarburisation, dephosphorisation, oxidation of silicon and manganese).
9. Deoxidation of steel, gases in steel.
10. Seminar - presentation of results of study of literature. Credit.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction