The dissertation deals with the issue of welding with weld metal type 25Cr13Ni (used brands of additive materials Böhler AWS ER 309 LSi, ESAB OK Autrod 309LSi, Oerlikon INERTFIL 309LSi a Sv-07Ch25N13) for applications in nuclear energy. The work focuses on solving the&...

Acceleration the oxidation kinetics while keeping the electrochemical conditions similar to those of the primary water in a pressurized water reactor. Comparison with results from pressurized water and determination of equivalence between water and steam environment. Creation of a computational m...

Advanced high-strength low-alloy steels are currently an important component for the automotive industry. Especially in the automotive industry, in the production of building and safety components, the emphasis is placed on the combination of high strength and ductility and decrease the weig...

The topic of the dissertation is "Innovative method of surface treatment of stainless steels by Laser Shock Peening (LSP)". The dissertation is aimed at describing the influence of LSP on the useful properties of tested steels used in the energy sector of the Czech R...

This thesis dealt with infrared nondestructive testing (IRNDT) of coating thickness. Thesis goals were a verification of IRNDT applicability for a coating thickness testing, a new evaluation algorithm design and a new excitation design. The evaluation algorithm and the excitation should impr...

The dissertation is focused on the development of applications of the probabilistic approach in the fatigue life analysis of structures loaded by high cycle fatigue. The assessment takes into account the random nature of the service load and the variance of fatigue properties of&#x...

The dissertation thesis deals with the development of the SPD process enabling the continuous production of high-strength titanium wires with an ultrafine to nano grained structure. Such wires are intended for the production of dental implants. The developed process consists of Conform ...

The application of thermal spray coatings benefits from excellent useful properties of coating materials and the low cost and easy fabrication of the base materials. This approach reduces the total costs and because of it is highly desirable in today's industry. One of the ...

The aim of the work is to investigate the mechanical behaviour of high strength steel during cold roll forming as the forming parameters are changed and to compare the experimental work with the FEA simulation results and acquire a relation of the deviation between the si...

Within this dissertation, the advantage of the combination of press hardening and QP technologies on three newly designed steels was confirmed. A suitable combination of QP processing parameters was found, thanks to which they achieve significantly better mechanical properties compared to&#...

This work concerns mechanical properties in relation to microstructural changes in hardenable EN AW-2024 aluminium alloy in wrought and heat treated condition. The treated material benefits from synergistic effects of three hardening mechanisms: grain boundary strengthening, work hardening and precipi...

This study aims to investigate the underlying mechanisms which govern the development of dense defect networks in nanoscale crystal plasticity, either under contact and uniaxial loading conditions, with emphasis on the onset of intermittent avalanche phenomena. The investigation is based on ...

The theoretical part of thesis deals with modern concepts of steel processing in the automotive industry. The aim of the experimental part of thesis is to investigate the effect of austempering on the structure and mechanical properties development of medium-carbon low-alloy steels with...

The dissertation thesis deals with the development of advanced techniques in low and high cycle fatigue testing using miniature test specimens, which are intended to evaluate the degree of material degradation of large in service components. For these purposes, the results of a wid...

The main topic of this dissertation thesis was the solution to the problem of the processing of carbide powder mixtures by technologies of additive production of SLM. As part of this work, the applicability of three different WC-Co powder mixtures for this additive technology ...

The dissertation is focused on analysis of degradation corrosion processes of Inconel 625 laser clads with increased molybdenum content. The introductory of the theoretical part is devoted to laser cladding technology process with additive powder material. The research describes basic principles ...

The thesis is aimed on the evaluation of surface integrity in holes created by unconventional drilling tools. They are capable of forming a precis hole and, moreover, are capable to strengthen the upper layers. The aim should be to develop a certain standard procedure for ...

The important aspects of photocatalytic materials like Nb3O7(OH) and Fe2O3 were investigated in this thesis, like the electronic structure, band gap, optoelectronic and spectroscopic properties. The effects of the doping elements in these materials were also investigated. These properties were ca...

With the help of innovative technological procedures, even conventional and well-tried materials can acquire atypical structures with specific mechanical and physical properties. One such dynamically developing area is the field of various semi-solid forming technologies. However, due to its technolog...

Two technologically important aspects of FePt magnetism were investigated in the thesis, namely, the magnetocrystalline anisotropy and the influence of the disorder. For this purpose we used ab initio quantum mechanical calculations. The calculated magnetocrystalline anisotropy energy significantly differs...