Open Access Conference Proceedings

Abstract: Low-alloy steel 16Mo3 is often used for tubes and other components of the pressure system of a boiler operating at elevated temperature (up to 530 °C). Long-term exposure of low-alloy steel components at elevated temperatures inevitably result in some kind of structural degradation; for example, creep cavitation, carbide coarsening and/or spheroidization, and, less commonly, also graphitization. [..] Read more

Abstract: During resistance welding, the electrode tips are significantly worn. The amount of wear is strongly dependent on the welded material, the surface treatment of the welded sheet, the thickness of the surface treatment, the welding parameters and, last but not least, especially on the number of performed welds. [..] Read more

Abstract: Knowledge of thermodynamical and thermophysical properties of materials plays an important role for many industrial applications. The paper is dedicated to the study of three model alloys based on Fe-C-Cr-Ni. [..] Read more

Abstract: In the paper, the methods for determining heat affected zones during arc weld surfacing is presented. For this purpose, numerical simulations of the temperature field were performed using the Ansys and Sysweld programs based on the finite element method. [..] Read more

Abstract: The experiment aimed on influence of shielding gas flow rate on properties of single V groove butt weld of high strength ultra-fine grained steel S960QL (XABO 960) and filler material G 89 6 M21 Mn4Ni2CrMo (X90) is described in this article. The steel S960QL is sensitive to presence of hydrogen in material structure, in exceed of maximal recommended content (<5ml/100g) the cold cracking may take place. [..] Read more

Abstract: The main objective of the research was to determine the influence of local laser treatment on the process of elastoplastic deflection of the sheets under bending force. FEA modelling results show, that the location of the treated area and the number of laser tracks on a thin-walled sheet surface had a large influence on the stress distribution and sheet deflections during bending. [..] Read more

Abstract: Recent increase in output of nuclear power plant has been attained by enlargement of most major components such as pressure vessels. Such large components have almost reached a size limit from the points of manufacturing capacity. [..] Read more

Abstract: The corrosion inhibition of steel in the hydrochloric acid solution by N-butylquinolinium bromide and 1-octyl-3-methylimidazolium chloride was investigated using electrochemical and weight loss methods. Both compounds under investigation act as mixed type inhibitors with predominantly anodic action. [..] Read more

Abstract: Stainless steels are promising materials for fuel cell bipolar plates. It meets high demands for bipolar plates, good thermal and electrical conductivity, low cost, good mechanical properties. [..] Read more

Abstract: The article deals with tribological evaluation of DLC coating. This coating is deposited on a material which, due to its mechanical properties, is suitable for components of weapons and military equipment. [..] Read more

Abstract: The specific feature of modern Russian paintwork material (PWM) market is an import share rise along with foreign manufactures extensive expansion. Russian market range of PWM contents above 3000 items, considering both PWM being used in household and foreign products. [..] Read more

Abstract: Superalloys with cobalt as a base material are widely used among different industry applications. Their main advantages are excellent corrosion and wear resistance. [..] Read more

Abstract: The design of implants and functional prostheses requires superficial modifications that promote fast and lasting osseointegration. Magnetron sputtering enables to design nanostructured and textured β-Ti rich Ti-22Nb-10Zr (wt.%) coatings with variable mechanical properties (hardness and Young’s modulus). [..] Read more

Abstract: The thermal spray technologies are versatile methods of deposition of thick coatings on the components surfaces. Based on spraying technology principle, various materials and coating thicknesses can be deposited. [..] Read more

Abstract: Currently, it is known that infrasonic axial fluctuations affect various properties of metals. We conducted experimental studies to study the resistance of metals to corrosion in the field of infrasonic axial impacts. [..] Read more

Abstract: The possible effects on the protective performance of ZRP modified by combination of Zn dust with aluminium or carbon type fillers were investigated using electrochemical noise analysis (ENA). The role of different oxygen diffusion characteristics (identified on tested coating systems with ENA) on delamination tendency was tested during 168 hrs immersion tests in 0.05 M NaCl. [..] Read more

Abstract: There are shown some case studies when the defects in coatings (hot dip galvanised and duplex coatings with powder paints) were caused by hydrogen charging into matrix of substrate steel. Steel was exposed into hydrochloric acid and then the zinc coatings had been formed at higher temperature. [..] Read more

Abstract: The article deals with the basic mechanisms of wear of the intake and exhaust guides of the valves and the valves themselves, which occurs during the operation of internal combustion engines. Particularly unfavorable conditions for friction pairs occur when operating engines with alternative fuels, such as natural gas, biogas or landfill gas, which may contain high amounts of sulfur. [..] Read more

Abstract: Besides customers and environmental requirements such as safety increase, the weight and emission reduction, and the life-time improvement, huge role plays corrosion resistance of the car-body components. This is improved by applying Zn-based coatings on the steel sheets. [..] Read more

Abstract: Corrosion - mechanical damage of the economizer pipe of the biomass boiler was analysed. Macroscopic, microscopic and SEM-EDX analysis were used for the analysis of steel samples. [..] Read more