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Slip theory in metals. Hardening and softening in polycrystals. Plastic deformation of multicomponent systems.
Thermally activated processes. Creep of metals. Cyclic deformation and fatigue of metals.
Last update: Pešička Josef, doc. RNDr., CSc. (06.05.2025)
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Podmínkou zakončení předmětu je získání zápočtu. Last update: Král Robert, doc. Dr. rer. nat., Ph.D. (06.05.2025)
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P. Kratochvíl, P. Lukáč, B. Sprušil: Úvod do fyziky kovů díl I. SNTL/Alfa Praha 1984. M. Klesnil, P. Lukáš: Únava kovových materiálů při mechanickém namáhání. Acadmia Praha 1975. J. Čadek: Creep kovových materálů. Academia Praha 1984. J.F. Humphreys, M. Hatherly, Recrystallization and related annealing phenomena. Pergamon Press, Oxford 1996.
Last update: Král Robert, doc. Dr. rer. nat., Ph.D. (06.05.2025)
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Požadavky ke zkoušce odpovídají anotaci předmětu. Last update: Král Robert, doc. Dr. rer. nat., Ph.D. (06.05.2025)
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1. Model concepts of slip in metals. Critical resolved shear stress. Hardening and softening. Experimental results of slip geometry. y-c curves. 2. Deformation of polycrystals. Description of the stress-strain curve. Models of hardening and softening in polycrystals. 3. Plastic deformation of multicomponent systems. Solid solution and interstitial hardening. Precipitation hardening. Dispersion hardening. 4. Thermally activated processes. Recovery of point defects and dislocation substructure. Static and dynamic recrystallization. High-temperature creep. Stress and temperature dependence of steady-state creep rate. Model concepts of creep. 5. Fatigue of metals. Cyclic plastic deformation. Cyclic hardening and softening. Nucleation of fatigue cracks. Fatigue fracture. Last update: Král Robert, doc. Dr. rer. nat., Ph.D. (06.05.2025)
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