Open Access Conference Proceedings

Abstract: Magnesium and its alloys are interesting materials but they have low corrosion resistance. Magnesium-aluminium double layered hydroxide (Mg-Al LDH) coatings were prepared on AZ31 alloy by hydrothermal method at 50 °C, 70 °C and 90 °C at different reaction times (3 h, 6 h and 24 h). [..] Read more

Abstract: Magnesium materials are desirable for surface treatment because of their low corrosion resistance. The preparation of coatings on AZ31 alloy by plasma electrolytic oxidation (PEO) in a bath with and without humic acid was investigated. [..] Read more

Abstract: It has been observed that the products obtained by means of 3D printing technology, even in the case of consideration of optimal parameters of printing technology recommended by the manufacturers of metal powders laser sintering systems, are characterized by certain structural discontinuities (pores and unmelted powder) in surface layer. Therefore, surface modification via shot peening is considered suitable for additive manufacturing of parts made of 17-4PH stainless steel. [..] Read more

Abstract: Dynamic impact wear, i.e. contact between two components in the presence of high cyclic local loads, is a challenging failure mode that occurs in many mechanical applications. [..] Read more

Abstract: One of the important product specifications currently required by Industrial Production and Sales is a good quality of material surface. Product surface is deliberately amended (finished) to prevent corrosion attacks and to amend its appearance / colour shades /. [..] Read more

Abstract: This paper deals with the testing of the properties of a bonded joint made of aluminum alloy EN AW 5754, where the laser cleaner MRJ FL C120 was used for the preparation of the bonded surfaces. Different laser beam settings were used to achieve the desired roughness. [..] Read more

Abstract: Anodizing is a technique by which thin oxide layers can be formed on a surface. Thin oxide layers have been found to be useful in a variety of applications, including emitters of electrons. [..] Read more

Abstract: The main objective of this research is to design and analyse laser cladding with different additive materials and variable cladding parameters. Coatings were produced to increase the corrosion and mechanical resistance of highly stressed rotating parts. [..] Read more

Abstract: Diamond-like carbon (DLC) coatings are characterized by unique properties (chemical, protective and tribological properties), thanks to which they are characterized by high hardness, resistance to chemical agents and a low coefficient of friction.The main goal of the article is to determine the working parameters of an internal combustion engine turbocharger after applying DLC coatings on the surfaces of its sliding bearing elements (shaft). Such an application can be considered both in the production of new turbochargers and in the regeneration of already operated turbochargers. [..] Read more

Abstract: This article deals with the evaluation of the microstructure and tribological and mechanical properties of hardmetal coatings based on WC and CrC, which were applied to the base material S235JR by the HVOF thermal spraying technology. Experiments such as microhardness HV0.3, superficial hardness HR15N, adhesion determination, abrasive wear and reciprocating sliding wear test were performed to compare the properties of the coatings and see how they differ depending on the selected additive material. [..] Read more

Abstract: The article presents results of tests concerning the metal-mineral abrasive wear resistance of arc-sprayed coatings with lower and higher air pressure (larger and smaller drops of metal) and HVOF-sprayed coatings deposited using the self-shielded flux cored wire providing the obtainment of the weld deposit of high-chromium cast iron Fe15 (in accordance with EN 14700). The significance of influence of the spraying technologies on abrasion resistance was determined using a completely randomized design. [..] Read more

Abstract: Cold spray is a modern method of coating in which solid powder particles are accelerated by a supersonic gas jet and on impact with the substrate they deform plastically and adhere to the surface. This principle of coating formation is dependent on the critical velocity of the flying particles, which is influenced, among other things, by the distance of the coated material from the nozzle end. [..] Read more

Abstract: The paper presents an idea and preliminary analysis of a new approach to modeling the surface geometry by applying advanced computational and analysis of data methods. It assumes that the material's surface may be treated as a random field and can be analyzed using the time series methods. [..] Read more

Abstract: The paper presents preliminary research on the application of coatings by the PVD method. The coatings were deposited on an AlNiCo alloy with a suitably pre-prepared surface. [..] Read more

Abstract: Protective coatings for machine parts can be economically viable if the wear is localized or if the coating material has different properties than the substrate. Technological surface layers (TSLs) are applied to objects before use, while functional surface layers (FSLs) are applied during maintenance. [..] Read more

Abstract: Vitreous enamel coatings play a very important role in the coating production process of steel in accordance with the technical and aesthetic properties. Surface quality of the enamel coating can be affected by various defects. [..] Read more

Abstract: Carbon dioxide is one of the possible working media for future advanced technologies in the power industry. Its use is possible in the supercritical state as a cooling medium in the nuclear power industry, as an extraction solvent, in the combustion of fossil fuels, in concentrating solar systems, or in CCS(Carbon Capture and Storage) processes. [..] Read more

Abstract: The subject of the investigations are cast pistons used in air compressors. The goal of this work was characterization of the wear of pistons made by aluminium-silicon alloys and showed differences in material characterisation for different aluminium-silicon alloy. [..] Read more

Abstract: The organ cabinet represents a specific corrosion environment with a high concentration of organic compounds that are released into the environment during the degradation of wood, glues and varnishes used in the production of the organ cabinet. Moreover, most of the metals from which organ pipes are made are highly sensitive to organic substances. [..] Read more

Abstract: Aluminium alloys are highly valued for their exceptional strength-to-weight ratio, making them a preferred choice in structural applications. Among these alloys, EN AW 7075 stands out for its superior mechanical properties, finding widespread use in industries such as aerospace, mechanical engineering, and sports equipment. [..] Read more