Lectures:
1. Structure of crystalline materials. Allotropy in pure metals.
2. Structure of binary alloys, substitutional solid solutions, short-range and long-range order, interstitial solid solutions, intermediary phases: electron compounds, Laves phases and electrochemical compounds.
3. Thermodynamics of phase transformations. Single component systems, pressure effect on equilibrium. Binary solutions: ideal solutions, chemical potential, regular solutions, activity, real solutions, equilibrium in heterogeneous systems, relationship between binary diagrams and Gibbs free energy curves, effect of interface on equilibrium.
4. Kinetics of phase transformations. Arrhenius equation.
5. Classification of phase transformations. First and second order transformations.
6. Solidification. Nucleation in pure metals: homogeneous and heterogeneous nucleation, growth of thermal dendrites in pure metals, three limit cases of single phase alloys solidification.
7. Solidification in binary alloys. Constitutional undercooling, dendrite growth, eutectic solidification, solidification in hypoeutectic and peritectic alloys, practical examples of solidification.
8. Diffuse transformations in solids. Precipitation: homogeneous and heterogeneous nucleation in solid state, nucleation rate, growth and coarsening of precipitates, precipitation sequence, precipitation in age hardened alloys. Cellular (discontinuous) precipitation. Continuous precipitation. Interphase precipitation.
9. Thermodynamic and kinetic modelling of precipitation reactions. Kinetics of diffuse phase transformations: Johnson-Mehl-Avrami equation. TTT and CCT diagrams.
10. Phase interfaces in solids: coherent, semi-coherent and non-coherent interfaces. Interface migration: glissile and non-glissile interfaces.
11. Homogeneous transformation: spinodal decomposition. Formation mechanisms of long-range ordered phases.
12. Massive transformation. Hypoeutectoid and eutectoid transformations. Austenitization. Bainitic transformation.
13. Difussionless phase transformation. Athermal and isothermal transformation. Nucleation and growth of martensite. Shape deformation at martensitic transformation, habit plane. Martensite crystallography in Fe-C alloys, Bain deformation. Morphology of martensite in Fe–C alloys. Deformation induced martensitic transformation.
14. Thermoelastic martensitic transformation, self-accommodation martensite. Transformation and re-orientation pseudoelasticity. Shape memory effect.
15. Tempering of steels. Tempering embrittlement.
Seminars:
1. Introduction, charateristics of crystalline state, thermodynamic calculations in binary diagrams. Control test.
2. Thermodynamic calculations of phase transfformations, stability of phases.
3. Thermdynamic calculations of phase transformations, stability of phases.
4. Homogeneous and heterogeneous nucleationn in liquid and solid state..
5. Homogeneous and heterogeneous nucleationn in liquid and solid state..
6. Homogeneous and heterogeneous nucleationn in liquid and solid state..
7. Programme 1. Structural parameters during solidification.
1. Structure of crystalline materials. Allotropy in pure metals.
2. Structure of binary alloys, substitutional solid solutions, short-range and long-range order, interstitial solid solutions, intermediary phases: electron compounds, Laves phases and electrochemical compounds.
3. Thermodynamics of phase transformations. Single component systems, pressure effect on equilibrium. Binary solutions: ideal solutions, chemical potential, regular solutions, activity, real solutions, equilibrium in heterogeneous systems, relationship between binary diagrams and Gibbs free energy curves, effect of interface on equilibrium.
4. Kinetics of phase transformations. Arrhenius equation.
5. Classification of phase transformations. First and second order transformations.
6. Solidification. Nucleation in pure metals: homogeneous and heterogeneous nucleation, growth of thermal dendrites in pure metals, three limit cases of single phase alloys solidification.
7. Solidification in binary alloys. Constitutional undercooling, dendrite growth, eutectic solidification, solidification in hypoeutectic and peritectic alloys, practical examples of solidification.
8. Diffuse transformations in solids. Precipitation: homogeneous and heterogeneous nucleation in solid state, nucleation rate, growth and coarsening of precipitates, precipitation sequence, precipitation in age hardened alloys. Cellular (discontinuous) precipitation. Continuous precipitation. Interphase precipitation.
9. Thermodynamic and kinetic modelling of precipitation reactions. Kinetics of diffuse phase transformations: Johnson-Mehl-Avrami equation. TTT and CCT diagrams.
10. Phase interfaces in solids: coherent, semi-coherent and non-coherent interfaces. Interface migration: glissile and non-glissile interfaces.
11. Homogeneous transformation: spinodal decomposition. Formation mechanisms of long-range ordered phases.
12. Massive transformation. Hypoeutectoid and eutectoid transformations. Austenitization. Bainitic transformation.
13. Difussionless phase transformation. Athermal and isothermal transformation. Nucleation and growth of martensite. Shape deformation at martensitic transformation, habit plane. Martensite crystallography in Fe-C alloys, Bain deformation. Morphology of martensite in Fe–C alloys. Deformation induced martensitic transformation.
14. Thermoelastic martensitic transformation, self-accommodation martensite. Transformation and re-orientation pseudoelasticity. Shape memory effect.
15. Tempering of steels. Tempering embrittlement.
Seminars:
1. Introduction, charateristics of crystalline state, thermodynamic calculations in binary diagrams. Control test.
2. Thermodynamic calculations of phase transfformations, stability of phases.
3. Thermdynamic calculations of phase transformations, stability of phases.
4. Homogeneous and heterogeneous nucleationn in liquid and solid state..
5. Homogeneous and heterogeneous nucleationn in liquid and solid state..
6. Homogeneous and heterogeneous nucleationn in liquid and solid state..
7. Programme 1. Structural parameters during solidification.