633-0912/01 – Plasticity and structure-forming processes at metal forming (PLSPhD)

Gurantor departmentDepartment of Materials FormingCredits10
Subject guarantorprof. Ing. Ivo Schindler, CSc.Subject version guarantorprof. Ing. Ivo Schindler, CSc.
Study levelpostgraduateRequirementChoice-compulsory type B
YearSemesterwinter + summer
Study languageCzech
Year of introduction2019/2020Year of cancellation
Intended for the facultiesFMTIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
SH135 prof. Ing. Ivo Schindler, CSc.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 20+0
Combined Examination 20+0

Subject aims expressed by acquired skills and competences

Student will know how to study and mathematically describe the basic deformation mechanisms, plastic properties and structure-forming processes related to hot/cold forming and acting in the course of free or controlled cooling of the formed products. Student will be able to apply this knowledge at optimization and control of structural and mechanical properties of the bulk formed material.

Teaching methods

Lectures
Individual consultations

Summary

Subject provides comprehensive theoretical and technological knowledge about the progressive processes of flat and long products rolling, including hot and cold processing. Attention is also paid to the structure-forming processes related to hot/cold forming and acting in the course of free or controlled cooling of the formed products.

Compulsory literature:

KACHANOV, L.M. Fundamentals of the theory of plasticity. Mineola, New York: Dover Publications, Inc., 2004. ISBN 0-486-43583-1. CHAKRABARTY, J. Theory of plasticity. 3rd edition, Elsevier Butterworth-Heinemann, 2006. ISBN 0-7506-6638-2. KAWULOK, R., et al. Transformation kinetics of selected steel grades after plastic deformation. Metalurgija. 2016, 55(3), 357-360. ISSN 0543-5846.

Recommended literature:

TAMURA, I. et al. Thermomechanical processing of high-strength low-alloy steels. London: Butterworths, 1988. ISBN 0-408-11034-1. HADASIK, E. and I. SCHINDLER, ed. Plasticity of metallic materials: deformation behaviour, structure development, testing, modeling. Gliwice: Publishers of the Silesian University of Technology, 2004. ISBN: 83-7335-197-3.

Way of continuous check of knowledge in the course of semester

Oral exam with written preparation, essay on assigned topic.

E-learning

Další požadavky na studenta

Elaboration of essay based on foreign language literature.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Crystalline structure of metals, lattice defects, sliding systems in steels and alloys of non-ferrous metals. Role of dislocations and stacking fault energy at plastic deformation- Dislocation/diffusion mechanisms of plastic deformation, conditions for superplasticity. Plastic deformation of polycrystal, several strengthening constituents. Stress-strain curve, basic mathematical descriptions, calculation of the critical strain using Hollomon equation. Analysis and prediction of stress-strain curves influenced by dynamic softening processes. Determination of the hot forming activation energy – methodology. Mathematical description of the recrystallization kinetics, adjustment of Avrami equation. Boundary state of stress, plasticity limit, state of stress indicator, maps of fracture mechanisms. Possibilities of influencing the structure-forming processes in the course of hot forming and final cooling. Methodology of the transformation diagrams, effect of the previous deformation on (D)CCT diagrams. Physical optimization simulations of the conventional and controlled methods of bulk forming.

Conditions for subject completion

Combined form (validity from: 2019/2020 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination  
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2019/2020 (P0715D270006) Metallurgical Technology K Czech Ostrava Choice-compulsory type B study plan
2019/2020 (P0715D270006) Metallurgical Technology P Czech Ostrava Choice-compulsory type B study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner