Open Access Conference Proceedings

Abstract: The purpose of the study is to identify possible changes in different elementary powders (Al, Ti, Co, Cr, Ni, Fe) after being compacted by cold spray kinetic deposition. A deep analysis on the microstructure of the materials prior and after the deposition was performed through Scanning Electron Microscopy, Energy-Dispersive X-Ray Spectroscopy, Electron Channeling Contrast, X-ray Diffraction, Differential Scanning Calorimetry and microhardness tests.The results indicate that there are noticeable alterations in the microstructure of the materials due to plastic deformation processes which occur during the cold spray deposition, within the material presented up to 58% increase in hardness. [..] Read more

Abstract: In recent years, nano-sized cerium and silicon-containing coatings have been increasingly used as alternatives to chromate layers on galvanized steel. The present work is devoted to the development of the technology for obtaining these coatings. [..] Read more

Abstract: The service life of components used in the construction, mining or agricultural industry depends on several factors. Primarily lifespan is influenced by the type of wear to which the parts would be subjected (for example abrasion) and environment in which components perform their function. [..] Read more

Abstract: Plasma nitriding is a thermochemical treatment, widely used in many technical applications as a final operation to improve the mechanical, tribological and corrosion properties of steel. This paper is focused on plasma nitriding treatment of X12Cr13 martensitic stainless steel. [..] Read more

Abstract: In the present study, the method of non-vacuum electron beam cladding of powder mixtures containing 10, 20 and 30 wt. % of boron carbide, titanium and welding fluxes (CaF2, LiF) was used for the synthesis of titanium carbide and titanium boride particles. [..] Read more

Abstract: This work experimentally evaluates the effects of chemical composition, particularly the amount of silicon on the quality of the applied coating technology of hot dip galvanizing. The experiment is aimed at determining the microstructure, thickness and quality of the zinc layer on the test samples of different steel grades. [..] Read more

Abstract: The demand for coatings that can protect the base material from the influence of high temperature corrosion is nowadays increasing. For this reason, new coatings with potential to succeed in aggressive environments of energy, marine, food, etc. [..] Read more

Abstract: The thermal spraying of metallic coating (zinc, Zn-Al15, etc.) from wire is suitable technique for surface treatment corrosion protection of large structures. This study was carried out to investigate and evaluate the properties of zinc coatings affected by spraying techniques - heated by electrical arc or flame. [..] Read more

Abstract: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. [..] Read more

Abstract: Electrical discharge machining (EDM) is precision method of manufacturing complex shape with conductive materials, which is widely used in aerospace, automotive and mold making industries. In EDM material is removing with the series discharges occurring in the gap between two electrodes. [..] Read more

Abstract: Wire electrical discharge machining (WEDM) belongs to the advanced technology widely used in the engineering industry. In WEDM process material is removed from workpiece by series of electrical sparks. [..] Read more

Abstract: Increasing demands for reducing the surface roughness of components impose high requirements for finishing operations. As a result, it creates a space for the application of new progressive methods for the surface finishing of components. [..] Read more

Abstract: Engineering ceramics are commonly used as coating materials in machining steel and in the non-ferrous alloys industry, mainly to increase the durability tools working in different operating conditions. Coatings based on borides, nitrides, or carbides have high hardness and good tribological properties at room and at elevated temperatures. [..] Read more

Abstract: Titanium dioxide (TiO2) is one of the most useful materials in various applications related to catalysis, electronics, photonics, sensing, and medicine. TiO2 is characterized by high chemical stability, outstanding optical and electrical properties, a non-toxic nature, and ease of mass production, and this is what causes it to be successfully used as a photocatalyst in many fields such as anti-bacterial applications, water purification, the decomposition of various organic pollutants, and solar cell applications TiO2 thin films can be prepared by a variety of methods, such as the sol–gel method, pulsed laser deposition, chemical vapour deposition, spray pyrolysis, and sputtering techniques. [..] Read more

Abstract: The paper analyzes the influence of the new flux cored wire intended for cladding process by different sets of cladding parameters. Technological parameters of the cladding process such as welding speed, power source setting, the length of projecting portion of the electrode, thermal conductivity coefficient of aluminum for heating dissipation was analyzed. [..] Read more

Abstract: The present work is focused on the influence of the hardfacing sequence on the structure and erosion resistance of deposited layers. In the researche one type of the additional material with high content of 3,8 %C and 22 %Cr was used. [..] Read more

Abstract: This paper is focused on the tribological behaviour of the plasma nitrided 42CrMo4 steel at elevated temperature to 300 ºC. The hardened steel was treated in plasma in two variants of nitriding atmosphere: 24H2:8N2 and reverse ratio 8H2:24N2, which is greater nitrogen concentration. [..] Read more

Abstract: This paper deals with a method enabling the preparation of thick metallic microstructures on metal substrates. Such metallic microstructures can be used as a resolution samples to characterize various microanalysis techniques, such as X-ray fluorescence (XRF) or X-ray photoelectron spectroscopy (XPS). [..] Read more

Abstract: The article focuses on the technology of machining thermal sprays and the determination of suitable machining parameters with respect to the achieved quality of the machined surface. Thermal sprays are characterized by a very good workability in terms of chip machining technology, but this production results in a defective surface quality (ripped coating). [..] Read more

Abstract: The paper presents the results of studies aimed at determination of corrosion resistance intermetallic phase matrix of FeAl alloy in a steam environment at 850 °C. The comparison of heat resistance of Fe40Al5Cr0,2TiB intermetallic alloy with heat-resistant steel with austenitic structure X25CrMnNiN25-9-7 was also presented at the article. [..] Read more