Course detail
Theory of Complex Phase Transformations
FSI-WKFAcad. year: 2023/2024
The basic principles of thermodynamics, theory of reaction rates, diffusion, crystallography and theory of phase interface are applied to introduce criteria of phase equilibrium, as well as to explain thermodynamic conditions, kinetics, mechanism and results of various types of phase transformations. Emphasis is placed on the liquid – solid transformation and to solid – solid diffusive and non-diffusive transitions, predominantly in relation to metals and alloys. The course provides only basic information about transitions in ceramics and plastics, because they are dealt with in other specialised courses.
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Entry knowledge
Rules for evaluation and completion of the course
The attendance at the lectures is optional; with respect to the advanced stage of specialised studies the self-study, professional reports and discussion given by students, project teaching and consultations are preferred. The attendance at the seminars and practical training is compulsory and is always checked by the teacher. Absence may be in justified cases compensated for by the agreement with the teacher
Aims
The acquired knowledge is highly theoretical, still it can be used both in basic and applied fields of research, as well as in practice, e.g. when optimising manufacturing and processing technologies resulting in the development and production of materials proving desired and guaranteed composition, structure and properties, when influencing the stability of the initial structure of materials or controlling the degradation processes in the course of application.
Study aids
Prerequisites and corequisites
Basic literature
Christian, J. W.: The Theory of Transformations in Metals and Alloys, , 0
Porter, D. A. - Easterling, K. E. : Phase Transformations in Metals and Alloys. , , 0
Recommended reading
Callister, W. D. Jr.: Material Science and Engineering. An Introduction. 3rd Edition, , , 0
Ohring, M.: Engineering Materials Science. , , 0
Classification of course in study plans
- Programme N-MTI-P Master's 1 year of study, summer semester, compulsory
Type of course unit
Lecture
Teacher / Lecturer
Syllabus
2. Crystallisation in one component systems.
3. Crystallisation of solid solutions.
4. Crystallisation of solid solutions.
5. Crystallisation of eutectics and peritectics.
6. Allotropic, polymorphic and massive transformations.
7. Allotropic, polymorphic and massive transformations.
8. Eutectoid transformations.
9. Bainitic Transformations.
10. Martensitic transformations.
11. Martensitic transformations.
12. Decomposition of supersaturated solid solutions.
13. Decomposition of supersaturated solid solutions.
Laboratory exercise
Teacher / Lecturer
Syllabus
1. Assessment of chemical inhomogeneity in cast materials.
2. Assessment of chemical inhomogeneity in cast materials.
3. Evaluation of calorimetric experiments and estimation of the phase transformation energy.
4. Evaluation of calorimetric experiments and estimation of the phase transformation energy.
5. Evaluation of microstructures, solution of the Avrami equation and construction of a part of the transformation diagram.
6. Evaluation of microstructures, solution of the Avrami equation and construction of a part of the transformation diagram.
Exercise
Teacher / Lecturer
Syllabus
2. Solution of examples.
3. Key words of the second law of thermodynamics, equilibrium and spontaneous processes.
4. Solution of examples.
5. Key words of the phase transformation kinetics.
6. Solution of examples.
7. The laws of diffusion, solution of examples.