Open Access Conference Proceedings

Abstract: The temperature of the hot bending of creep resistant steels is usually performed above the transition temperature Ac3. The steel thus undergoes a short-term austenitization followed by martensitic and/or bainitic transformation during subsequent fast cooling. [..] Read more

Abstract: Small punch test is very useful method for evaluation of actual material properties of components especially in power industry. Two standards cover small punch test method – European standard and ASTM standard. [..] Read more

Abstract: In December 2017 there was a crash of footbridge in Prague – Troja. This failure led to an increase in interest in current status of prestressed concrete stress-ribbon bridges in the Czech Republic and maximum effort to prevent another accident. [..] Read more

Abstract: The present work aims to demonstrate artifacts and errors in visualization of retained austenite phase in TRIP steel by an electron back-scattered diffraction (EBSD) technique. Retained austenite phases size and shape obtained by the EBSD are directly compared with a real image of these phases acquired by means of an atomic force microscopy (AFM). [..] Read more

Abstract: In the article, the technologies of deburring after pipe cutting are analyzed. The pipe cutting technologies and the external or internal burrs that are formed are described. [..] Read more

Abstract: The aim of the article is to analyse of the impact the double normalization process of 38MnVS6 micro-alloy steel on the achievement of the required microstructure and selected mechanical properties. The analysis was made based on values of elongation at break and the criterion of the minimum permissible breaking work. [..] Read more

Abstract: The experimental material consisted of semi-finished products of high-grade, medium-carbon constructional steel with: manganese, chromium, nickel, molybdenum and boron. The experimental material consisted of steel products obtained in industry metallurgical process in electric in a 140-ton basic arc furnace and desulfurized with argon-refined. [..] Read more

Abstract: Paint dust is a fire hazardous product, it must be removed as it accumulates in the spray booths. To facilitate cleaning of the inner walls of the chambers, they should be covered with grease or other material and cleaned together with a layer of adhering paint. [..] Read more

Abstract: The choice of paints and varnishes and painting technologies for agricultural machinery is made taking into account its purpose and operating conditions. Therefore, when choosing a painting technology, it is necessary to take into account the weather resistance of the resulting paintwork, oil resistance, petrol resistance and heat resistance, as well as chemical resistance and non-toxicity, depending on the operating conditions. [..] Read more

Abstract: The article provides an analysis and basic approaches to the choice of paint and varnish coatings and the technology of their application. A logical model of the life cycle of a paintwork system is presented. [..] Read more

Abstract: The friction and wear behavior of cold-work tool steel materials is a subject of interest to researchers and tribologists. Both friction and wear are the key factors affecting the life of a tool. [..] Read more

Abstract: This study was conducted to investigate the determination of the conditions for evaluation friction-wear properties of the thin layers and coatings on structural 16MnCr5 steel. The AlCrVN coatings with the thickness of 2.0 µm were generated on the un-nitrided and nitrided materials under the same conditions. [..] Read more

Abstract: Flake zinc-aluminium coatings are used in industry for decades. They can perform high corrosion resistance according to required accelerated tests, but in the field application the corrosion resistance is reduced due to nonuniform thickness of coating layers. [..] Read more

Abstract: The effect of different vol. % Zn:Al ratio in Zn and Al pigmented epoxy coatings with the same OPVC (40 vol. [..] Read more

Abstract: Magnesium and its alloys are promising materials that have potential mainly in the field of transport (e.g. automobile industry) and medicine (e.g. [..] Read more

Abstract: The paper describes combination of optical and electronic methods together with IR analysis for evaluation of the paint coatings. Based on these methods the fingerprint of each paint layers is identified according to requirements of ISO 12944-9. [..] Read more

Abstract: The processes of applying cerium and titanium, zirconium-containing coatings to 5556 aluminum alloy have been developed. It is established that the developed passivation coatings applied on aluminum alloy parts for corrosion resistance and protective ability are comparable with chromate coatings. [..] Read more

Abstract: Thickness is one of important characteristics of coatings such as thermal barrier coatings, anticorrosion paints and others. The thickness of these coatings and its homogeneity can influence their properties and it is often measured quantity in industrial applications. [..] Read more

Abstract: The paper presents the results of electrodeposition for obtaining chromium coatings with the addition of nanodiamonds with a thickness of 10 and 50 μm. The topography of the coatings was investigated by scanning electron microscopy (SEM), and the qualitative composition by energy dispersive microanalysis (EDX). [..] Read more

Abstract: The work is devoted to the study of the process of passivation of zinc and its alloys in ecologically safe molybdate-containing solutions in order to replace highly toxic solutions of black chromate passivation.The concentration range of the solution components was determined, in which black coatings are deposited, corresponding to a point of 10 on a ten-point color scale. It was found that the optimal pH values of the solution are in the range from 4.8 to 5.2 units. [..] Read more