In this bachelor thesis will be evaluated life of the piston ring from internal combustion engines of new concepts. Work will evaluate the effect of the temperature on the piston rings, and various surface treatments. This evaluation will be based on microhardness and metallographi...

The aim of this bachelor thesis is to compare two methods of laser surface hardening. The material C45 was hardened with a standard and scanning method. The evaluation was performed by determining the depth of hardening, the microstructure, the geometry and the data from the&#...

This bachelor thesis is focused on optimizing the surface treatment of piston rings before applying chromium. It describes the evolution of piston rings, their finishes, chrome principles and requirements placed on them. The samples piston rings author experimentally determined the optimum s...

The main task of that bachelor work is studied problems of fatigue microalloyed and resistance to abrasion steels and subsequent evaluation of whether it would be appropriate to use these materials for wider use in engineering practice. HARDOX 450, HARDOX 500 and steel class 1...

The bachelor thesis aims to define the terms of adhesion and cohesion, a description of the thin film-substrate system and it focuses mainly on adhesive-cohesive properties that operates on interface of this system. In experimental part there will be series of tests taken on t...

Bachelor thesis is focused on the replacement of hard chrome plating, because the production produced in Chrome-plating baths carcinogenic chromium compounds. As a good choice seems laser cladding technology in which we can achieve similar coatings, but without the dangerous chromium compounds.

The aim of the thesis is to give a general overview of cemented carbides, their properties and means of decreasing of this properties. Using laboratory testing in the experimental part, there will be search for the changes of properties depending on diferent types of surfaces.

The goal of this bachelor work is to verify the theory that the residual or inset stress have a direct impact to corrosion extend of materials and outline the methods, ways or recommendations to implement and prove this theory in the laboratory conditions.

This thesis deals with the testing of molded steel S235JR-C and aluminum alloy EN AW-1090 by eddy currents, which can verify the degree of the deformation of the material. The research part deals with the theory of forming, basic NDT methods, the theory of eddy currents&#...

The presented thesis is dedicated to the mechanical properties of the sandwich bonded joints. The first part, which is the nature of the research, is dedicated to the basic theory of adhesive bonding, distribution of adhesives, description of the testing methods, compared the proce...

This thesis deals with factors influencing the results of tensile tests of miniature specimens. Strain measurement was performed using digital image correlation. Performed experiments were focused on the influence of manufacturing method for miniature tensile specimens. Furthermore, the influence of&#...

The goal of this thesis is study and optimization of surface treatment of materiál used for fatigue tests and finally fatigue samples. The reasults of surface treatment is given on the base of results from analytic methods therefore the second goal is evaluation of properties&...

The goal of this bachelor´s work is to assess the impact of a normal force on the a) wear rate, b) volume loss and c) wear coefficient of a laser beam quenched steel and describe the steel hardness impact character on the avaluated parameters

This bachelor thesis is focused on microwave activation of clays (bentonite BA03, clay GEC, Lutila) and determination of activation degree on oil-polluted wastewater. Oil-polluted wastewater was treated by clays activated either by conventional delamination or by microwave activation in water. Tr...

Bachelor thesis deals with pickling heterogeneous products. These products were created by welding two stainless steels, namely austenitic and martensitic steels. This work is localized to influence of pickling bath on surface of welding part, skid resistance and corrosion resistance. In the...

The focus of this Bachelor thesis is the preparation of an alloy consisting of two metals Al and Pb which are non-miscible under thermodynamic equilibrium conditions. The method of Laser assisted chemical deposition (LCVD) of a gas reactant and simultaneous ablation of a solid ...

Bachelor's thesis is focused on the preparation of biodegradable composites based on thermoplastic starch and different used fillers (plastic or non-plastic). The aim is to determine their basic mechanical properties and investigate how quickly composites degrade in aqueous medium. It was...

This bachelor work is about packing nitridation. In this work we compare samples with different nitridation time and nitridation temperature made by packing nitridation method. We used structural steel and tool steel as samples.

This bachelor thesis is focused on the preparation of metastable Al Ge alloy using laser ablation of solid metal target and simultaneous decomposition of organometallic gaseous reactant. Obtained deposits were analyzed by optical microscopy, SEM, EDX and Raman spectroscopy. Theoretical...

Verification of the possibilities of evaluations of selected composite and polymeric materials, used in the nuclear electric isolation by nanoindentation. Have focussed on the verification of sufficient sensitivity to ongoing changes from the surface to the depth of the aging process from&#x...