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	Fatigue Properties of Ultra-fine Grain Copper Produced by ECAP Method Navrátilová, Lucie ; Němec, Karel (referee) ; Pantělejev, Libor (advisor) This diploma thesis describes properties of ultra-fine grain Cu prepared via ECAP procedure. The influence of fatigue loading with positive mean stress on S-N curve (i.e. fatigue life), cyclic plastic behaviour and grain size was investigated. It was found that tensile mean stress leads to shorter lifetime in comparison with fatigue loading with zero mean stress. During main part of the lifetime, significant hardening of UFG Cu was observed. There is no distinct effect on microstructural orientation and stability. Detailed record
	Evaluation of mechanical characteristics of metalic materials under cyclic loading Vlach, Jiří ; Slámečka, Karel (referee) ; Horníková, Jana (advisor) This bachelor thesis is focused on study mechanical characteristics of metalic materials under cyclic loading. In the first section there are summarized current facts about three fatigue stages: fatigue hardening/softening, microcrack nucleation and crack propagation. This part also contains information about fatigue life, fatigue strength and fatigue limit. The main aim of practical part was to evaluate the Wöhler´s curve, also called S-N curve. Detailed record
	Fatigue endurance of extruded Mg alloy AZ91E Sobola, Petr ; Štěpánek, Roman (referee) ; Pantělejev, Libor (advisor) This thesis deals with fatigue behaviour of magnesium alloy AZ91E produced by extrusion. In the frame of this work, basic mechanical characteristics and data from performed fatigue tests were obtained. Further metallographic analysis of microstructure and fractographic analysis of broken specimens after fatigue tests were carried out. Detailed record
	Fatigue endurance of extruded Mg alloy AZ91E Sobola, Petr ; Štěpánek, Roman (referee) ; Pantělejev, Libor (advisor) This thesis deals with fatigue behaviour of magnesium alloy AZ91E produced by extrusion. In the frame of this work, basic mechanical characteristics and data from performed fatigue tests were obtained. Further metallographic analysis of microstructure and fractographic analysis of broken specimens after fatigue tests were carried out. Detailed record
	Fatigue Properties of Ultra-fine Grain Copper Produced by ECAP Method Navrátilová, Lucie ; Němec, Karel (referee) ; Pantělejev, Libor (advisor) This diploma thesis describes properties of ultra-fine grain Cu prepared via ECAP procedure. The influence of fatigue loading with positive mean stress on S-N curve (i.e. fatigue life), cyclic plastic behaviour and grain size was investigated. It was found that tensile mean stress leads to shorter lifetime in comparison with fatigue loading with zero mean stress. During main part of the lifetime, significant hardening of UFG Cu was observed. There is no distinct effect on microstructural orientation and stability. Detailed record
	Evaluation of mechanical characteristics of metalic materials under cyclic loading Vlach, Jiří ; Slámečka, Karel (referee) ; Horníková, Jana (advisor) This bachelor thesis is focused on study mechanical characteristics of metalic materials under cyclic loading. In the first section there are summarized current facts about three fatigue stages: fatigue hardening/softening, microcrack nucleation and crack propagation. This part also contains information about fatigue life, fatigue strength and fatigue limit. The main aim of practical part was to evaluate the Wöhler´s curve, also called S-N curve. Detailed record

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