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Terminated in academic year 2022/2023

Metal Plasticity

Type of study Doctoral
Language of instruction English
Code 633-0902/03
Abbreviation PLKD
Course title Metal Plasticity
Credits 10
Coordinating department Department of Materials Forming
Course coordinator prof. Ing. Jiří Kliber, CSc.

Subject syllabus

• Crystallic construction metals. Directions and plane of slip - slippage systems. Lattice imperfection. Vacancy.
• Dislocation, their intersection. Stacking faults. Tension round dislocation and energy. Set single crystal. Athermic and thermal component shear deformation tension.
• Plastic deformation of polycrystalline. Increases incurred of grain boundary, alloying elements and precipitate.
• Stress- strain curve. Primary objective mathematical descriptions. Calculations by the help of linear regression analysis. Determination constant k in Hollomon equation and energy of deformation.
• Analysis stress-strain curve by dynamic restoration according to Sellars. Other analysis (pull - up play - new dislocation, movement jumps spiral dislocation. Garofalo application. Procedure assessment constants, especially activation energy.
• Analysis curves controlled by dynamic recrystallization.
• Mathematical theory of recrystallization kinetics Avrami equation. Adjustment Avrami equation.
• Plastometric simulation. Primary objective manners and mathematical formulation tension and deformation. Application on real forming processes.
• Influence deformation conditions on kinetics of dynamic recrystallization. Static recrystallization after plastic deformation at hot condition. Influence thermometric conditions on kinetics of static recrystallization. Base conditions phenomenon super - plasticity.
• Diffused mechanism of plastic deformation, influence time and relaxation constant on form resulting equation. Diffusion flow of metal. Boundary plasticity – fracture. Work for creation of crack. Breakable rapture with plastic zone.
• Mechanical maps of fracture.
• Boundary plasticity metals. Manners mathematical formulation. Engineering materials and their characteristics - Ashby maps.
• Indicator of state of stress - Kolmogorov. Influence second and third tensor state invariant of stress. Boundary stress according to Mohr. Triaxial state of stress - revolving paraboloid.

Literature

[1] May, I. L.: Principles of Mechanical Metallurgy. New York, Elsevier, 1981
[2] Kolmogorov, B. L.: Plastičnost i rozrušenije. Moskva, Metallurgija, 1986
[3] Honeycombe, R. W. K. The Plastic Deformation of Metals , 2d ed., Edward Arnold, London (1984).

Advised literature

[1] Chakrabarty, J. Theory of plasticity. Third edition published by Elsevier Butterworth-Heinemann, 2006, ISBN-10: 0-7506-6638-2.
[2] Lubliner, J. Plasticity theory, Mc Milan, 1990.
Individual movement of foreign literature toward to diploma work theme